10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2020

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                  to                 

Commission File Number: 1-12675 (Kilroy Realty Corporation)

Commission File Number: 000-54005 (Kilroy Realty, L.P.)

KILROY REALTY CORPORATION

KILROY REALTY, L.P.

(Exact name of registrant as specified in its charter)

Kilroy Realty Corporation	Maryland	95-4598246
	(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
Kilroy Realty, L.P.	Delaware	95-4612685
	(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

12200 W. Olympic Boulevard, Suite 200, Los Angeles, California, 90064

(Address of principal executive offices) (Zip Code)

(310) 481-8400

(Registrant's telephone number, including area code)

N/A

(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:
Registrant	Title of each class	Name of each exchange on which registered	Ticker Symbol
Kilroy Realty Corporation	Common Stock, $.01 par value	New York Stock Exchange	KRC

Securities registered pursuant to Section 12(g) of the Act:
Registrant	Title of each class
Kilroy Realty, L.P.	Common Units Representing Limited Partnership Interests

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    

Kilroy Realty Corporation    Yes  ☑    No   ☐

Kilroy Realty, L.P.         Yes  ☑    No   ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    

Kilroy Realty Corporation     Yes  ☑    No   ☐

Kilroy Realty, L.P.         Yes  ☑    No   ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Kilroy Realty Corporation

Large accelerated filer ☑    Accelerated filer ☐

Non-accelerated filer ☐    Smaller reporting company ☐

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Kilroy Realty, L.P.

Large accelerated filer ☐    Accelerated filer ☐

Non-accelerated filer ☑    Smaller reporting company ☐

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    

Kilroy Realty Corporation Yes  ☐     No   ☑

Kilroy Realty, L.P. Yes  ☐     No   ☑

As of October 23, 2020, 115,251,136 shares of Kilroy Realty Corporation common stock, par value $.01 per share, were outstanding.

EXPLANATORY NOTE

This report combines the quarterly reports on Form 10-Q for the period ended September 30, 2020 of Kilroy Realty Corporation and Kilroy Realty, L.P. Unless stated otherwise or the context otherwise requires, references to “Kilroy Realty Corporation” or the “Company,” “we,” “our,” and “us” mean Kilroy Realty Corporation, a Maryland corporation, and its controlled and consolidated subsidiaries, and references to “Kilroy Realty, L.P.” or the “Operating Partnership” mean Kilroy Realty, L.P., a Delaware limited partnership and its controlled and consolidated subsidiaries.

The Company is a real estate investment trust, or REIT, and the general partner of the Operating Partnership. As of September 30, 2020, the Company owned an approximate 98.4% common general partnership interest in the Operating Partnership. The remaining approximate 1.6% common limited partnership interests are owned by non-affiliated investors and certain directors and officers of the Company. As the sole general partner of the Operating Partnership, the Company exercises exclusive and complete discretion over the Operating Partnership’s day-to-day management and control and can cause it to enter into certain major transactions, including acquisitions, dispositions, and refinancings and cause changes in its line of business, capital structure and distribution policies.

There are a few differences between the Company and the Operating Partnership that are reflected in the disclosures in this Form 10-Q. We believe it is important to understand the differences between the Company and the Operating Partnership in the context of how the Company and the Operating Partnership operate as an interrelated, consolidated company. The Company is a REIT, the only material asset of which is the partnership interests it holds in the Operating Partnership. As a result, the Company generally does not conduct business itself, other than acting as the sole general partner of the Operating Partnership, issuing equity from time to time and guaranteeing certain debt of the Operating Partnership. The Company itself is not directly obligated under any indebtedness, but generally guarantees all of the debt of the Operating Partnership. The Operating Partnership owns substantially all of the assets of the Company either directly or through its subsidiaries, conducts the operations of the Company’s business and is structured as a limited partnership with no publicly traded equity. Except for net proceeds from equity issuances by the Company, which the Company generally contributes to the Operating Partnership in exchange for units of partnership interest, the Operating Partnership generates the capital required by the Company’s business through the Operating Partnership’s operations, by the Operating Partnership’s incurrence of indebtedness or through the issuance of units of partnership interest.

Noncontrolling interests, stockholders’ equity and partners’ capital are the main areas of difference between the consolidated financial statements of the Company and those of the Operating Partnership. The common limited partnership interests in the Operating Partnership are accounted for as partners’ capital in the Operating Partnership’s financial statements and, to the extent not held by the Company, as noncontrolling interests in the Company’s financial statements. The differences between stockholders’ equity, partners’ capital and noncontrolling interest result from the differences in the equity issued by the Company and the Operating Partnership.

We believe combining the quarterly reports on Form 10-Q of the Company and the Operating Partnership into this single report results in the following benefits:

• Combined reports better reflect how management and the analyst community view the business as a single operating unit;

• Combined reports enhance investors’ understanding of the Company and the Operating Partnership by enabling them to view the business as a whole and in the same manner as management;

• Combined reports are more efficient for the Company and the Operating Partnership and result in savings in time, effort and expense; and

• Combined reports are more efficient for investors by reducing duplicative disclosure and providing a single document for their review.

To help investors understand the significant differences between the Company and the Operating Partnership, this report presents the following separate sections for each of the Company and the Operating Partnership:

• consolidated financial statements;

• the following notes to the consolidated financial statements:

◦ Note 4, Stockholders’ Equity of the Company;

◦ Note 6, Partners’ Capital of the Operating Partnership;

◦ Note 11, Net Income Available to Common Stockholders Per Share of the Company;

◦ Note 12, Net Income Available to Common Unitholders Per Unit of the Operating Partnership;

◦ Note 13, Supplemental Cash Flow Information of the Company; and

i

◦ Note 14, Supplemental Cash Flow Information of the Operating Partnership;

• “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

◦ —Liquidity and Capital Resources of the Company;” and

◦ —Liquidity and Capital Resources of the Operating Partnership.”

This report also includes separate sections under “Part I – Financial Information, Item 4. Controls and Procedures” and separate Exhibit 31 and Exhibit 32 certifications for the Company and the Operating Partnership to establish that the Chief Executive Officer and the Chief Financial Officer of each entity have made the requisite certifications and that the Company and Operating Partnership are compliant with Rule 13a-15 or Rule 15d-15 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and 18 U.S.C. §1350.

ii

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

QUARTERLY REPORT FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 2020

TABLE OF CONTENTS

		Page
	PART I – FINANCIAL INFORMATION
Item 1.	FINANCIAL STATEMENTS (UNAUDITED) OF KILROY REALTY CORPORATION	1
	Consolidated Balance Sheets as of September 30, 2020 and December 31, 2019	1
	Consolidated Statements of Operations for the Three and Nine Months ended September 30, 2020 and 2019	2
	Consolidated Statements of Equity for the Three and Nine Months ended September 30, 2020 and 2019	3
	Consolidated Statements of Cash Flows for the Nine Months ended September 30, 2020 and 2019	5
Item 1.	FINANCIAL STATEMENTS (UNAUDITED) OF KILROY REALTY, L.P.	6
	Consolidated Balance Sheets as of September 30, 2020 and December 31, 2019	6
	Consolidated Statements of Operations for the Three and Nine Months ended September 30, 2020 and 2019	7
	Consolidated Statements of Capital for the Three and Nine Months ended September 30, 2020 and 2019	8
	Consolidated Statements of Cash Flows for the Nine Months ended September 30, 2020 and 2019	10
	Notes to Unaudited Consolidated Financial Statements	11
Item 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	29
Item 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	61
Item 4.	CONTROLS AND PROCEDURES (KILROY REALTY CORPORATION AND KILROY REALTY, L.P.)	61
	PART II – OTHER INFORMATION
Item 1.	LEGAL PROCEEDINGS	62
Item 1A.	RISK FACTORS	62
Item 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	64
Item 3.	DEFAULTS UPON SENIOR SECURITIES	64
Item 4.	MINE SAFETY DISCLOSURES	64
Item 5.	OTHER INFORMATION	64
Item 6.	EXHIBITS	65
SIGNATURES		66

PART I – FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS (UNAUDITED) OF KILROY REALTY CORPORATION

KILROY REALTY CORPORATION

CONSOLIDATED BALANCE SHEETS

(Unaudited; in thousands, except share data)

	September 30, 2020			December 31, 2019
ASSETS
REAL ESTATE ASSETS:
Land and improvements	$	1,612,224		$	1,466,166
Buildings and improvements	6,535,637			5,866,477
Undeveloped land and construction in progress	1,938,923			2,296,130
Total real estate assets held for investment	10,086,784			9,628,773
Accumulated depreciation and amortization	(1,744,325		)	(1,561,361		)
Total real estate assets held for investment, net	8,342,459			8,067,412
CASH AND CASH EQUIVALENTS (Note 4)	849,009			60,044
RESTRICTED CASH	16,300			16,300
MARKETABLE SECURITIES (Note 10)	25,073			27,098
CURRENT RECEIVABLES, NET	16,083			26,489
DEFERRED RENT RECEIVABLES, NET	375,939			337,937
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET	208,306			212,805
RIGHT OF USE GROUND LEASE ASSETS (Note 9)	95,733			96,348
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 2)	55,706			55,661
TOTAL ASSETS	$	9,984,608		$	8,900,094
LIABILITIES AND EQUITY
LIABILITIES:
Secured debt, net (Notes 3 and 10)	$	254,854		$	258,593
Unsecured debt, net (Notes 3, and 10)	3,668,976			3,049,185
Unsecured line of credit (Notes 3 and 10)	—			245,000
Accounts payable, accrued expenses and other liabilities	458,421			418,848
Ground lease liabilities (Note 9)	97,936			98,400
Accrued dividends and distributions (Note 15)	59,416			53,219
Deferred revenue and acquisition-related intangible liabilities, net	131,558			139,488
Rents received in advance and tenant security deposits	61,483			66,503
Total liabilities	4,732,644			4,329,236
COMMITMENTS AND CONTINGENCIES (Note 9)
EQUITY:
Stockholders’ Equity (Note 4):
Common stock, $.01 par value, 280,000,000 and 150,000,000 shares authorized, respectively, 115,247,221 and 106,016,287 shares issued and outstanding, respectively	1,152			1,060
Additional paid-in capital	5,089,926			4,350,917
Distributions in excess of earnings	(122,936		)	(58,467		)
Total stockholders’ equity	4,968,142			4,293,510
Noncontrolling Interests (Notes 1 and 5):
Common units of the Operating Partnership	83,226			81,917
Noncontrolling interests in consolidated property partnerships	200,596			195,431
Total noncontrolling interests	283,822			277,348
Total equity	5,251,964			4,570,858
TOTAL LIABILITIES AND EQUITY	$	9,984,608		$	8,900,094

See accompanying notes to consolidated financial statements.

1

KILROY REALTY CORPORATION

CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited; in thousands, except share and per share data)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
REVENUES
Rental income (Note 8)	$	227,122		$	212,321		$	664,111		$	609,332
Other property income	1,192			3,204			4,954			7,887
Total revenues	228,314			215,525			669,065			617,219
EXPENSES
Property expenses	39,236			41,308			116,048			117,993
Real estate taxes	23,868			19,998			67,924			56,563
Ground leases (Note 9)	2,119			2,049			6,766			6,135
General and administrative expenses (Notes 7 and 10)	18,572			22,576			76,179			65,774
Leasing costs	986			1,192			3,772			5,599
Depreciation and amortization	71,863			69,230			226,318			203,617
Total expenses	156,644			156,353			497,007			455,681
OTHER (EXPENSES) INCOME
Interest income and other net investment gain (Note 10)	1,869			761			1,579			3,205
Interest expense (Note 3)	(19,468		)	(11,635		)	(49,796		)	(34,605		)
Gains on sales of depreciable operating properties	—			—			—			7,169
Total other (expenses) income	(17,599		)	(10,874		)	(48,217		)	(24,231		)
NET INCOME	54,071			48,298			123,841			137,307
Net income attributable to noncontrolling common units of the Operating Partnership	(785		)	(852		)	(1,857		)	(2,423		)
Net income attributable to noncontrolling interests in consolidated property partnerships	(4,258		)	(3,600		)	(13,521		)	(11,941		)
Total income attributable to noncontrolling interests	(5,043		)	(4,452		)	(15,378		)	(14,364		)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$	49,028		$	43,846		$	108,463		$	122,943
Net income available to common stockholders per share – basic (Note 11)	$	0.42		$	0.41		$	0.95		$	1.19
Net income available to common stockholders per share – diluted (Note 11)	$	0.42		$	0.41		$	0.95		$	1.18
Weighted average common shares outstanding – basic (Note 11)	115,226,324			104,841,176			112,405,817			102,252,739
Weighted average common shares outstanding – diluted (Note 11)	115,667,657			105,359,904			112,875,875			102,872,436

See accompanying notes to consolidated financial statements.

2

KILROY REALTY CORPORATION

CONSOLIDATED STATEMENTS OF EQUITY

(Unaudited; in thousands, except share and per share/unit data)

	Common Stock											Total Stock- holders’ Equity			Noncontrolling Interests			Total Equity
	Number of Shares		Common Stock			Additional Paid-in Capital			Distributions in Excess of Earnings
BALANCE AS OF DECEMBER 31, 2019	106,016,287		$	1,060		$	4,350,917		$	(58,467	)	$	4,293,510		$	277,348		$	4,570,858
Net income									39,817			39,817			5,601			45,418
Issuance of common stock (Note 4)	8,897,110		89			721,705						721,794						721,794
Issuance of share-based compensation awards						1,720						1,720						1,720
Non-cash amortization of share-based compensation (Note 7)						8,653						8,653						8,653
Settlement of restricted stock units for shares of common stock	269,972		3			(3		)				—						—
Repurchase of common stock, stock options and restricted stock units	(117,445	)	(1		)	(9,798		)				(9,799		)				(9,799		)
Exchange of common units of the Operating Partnership	2,000		—			81						81			(81		)	—
Distributions to noncontrolling interests in consolidated property partnerships												—			(2,617		)	(2,617		)
Adjustment for noncontrolling interest						(6,094		)				(6,094		)	6,094			—
Dividends declared per common share and common unit ($0.485 per share/unit)									(57,532		)	(57,532		)	(980		)	(58,512		)
BALANCE AS OF MARCH 31, 2020	115,067,924		1,151			5,067,181			(76,182		)	4,992,150			285,365			5,277,515
Net income									19,618			19,618			4,734			24,352
Issuance of common stock	—		—			(45		)				(45		)				(45		)
Issuance of share-based compensation awards						805						805						805
Non-cash amortization of share-based compensation (Note 7)						13,576						13,576						13,576
Settlement of restricted stock units for shares of common stock	33,581		—			—						—						—
Repurchase of common stock, stock options and restricted stock units	(11,668	)	—			(735		)				(735		)				(735		)
Exchange of common units of the Operating Partnership	86,701		1			3,761						3,762			(3,762		)	—
Distributions to noncontrolling interests in consolidated property partnerships												—			(4,281		)	(4,281		)
Adjustment for noncontrolling interest						(181		)				(181		)	181			—
Dividends declared per common share and common unit ($0.485 per share/unit)									(56,659		)	(56,659		)	(939		)	(57,598		)
BALANCE AS OF JUNE 30, 2020	115,176,538		1,152			5,084,362			(113,223		)	4,972,291			281,298			5,253,589
Net income									49,028			49,028			5,043			54,071
Issuance of common stock	—		—			(74		)				(74		)				(74		)
Issuance of share-based compensation awards						1,101						1,101						1,101
Non-cash amortization of share-based compensation (Note 7)						7,794						7,794						7,794
Settlement of restricted stock units for shares of common stock	126,740		1			(1		)				—						—
Repurchase of common stock, stock options and restricted stock units	(59,069	)	(1		)	(3,352		)				(3,353		)				(3,353		)
Exchange of common units of the Operating Partnership	3,012		—			129						129			(129		)	—
Distributions to noncontrolling interests in consolidated property partnerships												—			(1,458		)	(1,458		)
Adjustment for noncontrolling interest						(33		)				(33		)	33			—
Dividends declared per common share and common unit ($0.50 per share/unit)									(58,741		)	(58,741		)	(965		)	(59,706		)
BALANCE AS OF SEPTEMBER 30, 2020	115,247,221		$	1,152		$	5,089,926		$	(122,936	)	$	4,968,142		$	283,822		$	5,251,964

3

	Common Stock											Total Stock- holders’ Equity			Noncontrolling Interests			Total Equity
	Number of Shares		Common Stock			Additional Paid-in Capital			Distributions in Excess of Earnings
BALANCE AS OF DECEMBER 31, 2018	100,746,988		$	1,007		$	3,976,953		$	(48,053	)	$	3,929,907		$	271,354		$	4,201,261
Net income									36,903			36,903			4,891			41,794
Opening adjustment to Distributions in Excess of Earnings upon adoption of ASC 842									(3,146		)	(3,146		)				(3,146		)
Issuance of share-based compensation awards						2,210						2,210						2,210
Non-cash amortization of share-based compensation						8,817						8,817						8,817
Settlement of restricted stock units for shares of common stock	393,240		4			(4		)				—						—
Repurchase of common stock, stock options and restricted stock units	(175,204	)	(1		)	(12,129		)				(12,130		)				(12,130		)
Exchange of common units of the Operating Partnership	2,000		—			78						78			(78		)	—
Distributions to noncontrolling interests in consolidated property partnerships												—			(6,309		)	(6,309		)
Adjustment for noncontrolling interest						279						279			(279		)	—
Dividends declared per common share and common unit ($0.455 per share/unit)									(48,394		)	(48,394		)	(921		)	(49,315		)
BALANCE AS OF MARCH 31, 2019	100,967,024		1,010			3,976,204			(62,690		)	3,914,524			268,658			4,183,182
Net income									42,194			42,194			5,021			47,215
Issuance of share-based compensation awards						820						820						820
Non-cash amortization of share-based compensation						8,732						8,732						8,732
Exercise of stock options	1,500		—			64						64						64
Settlement of restricted stock units for shares of common stock	16,270		—			—						—						—
Repurchase and cancellation of common stock, stock options, and restricted stock units	(12,759	)	—			(793		)				(793		)				(793		)
Distributions to noncontrolling interests in consolidated property partnerships												—			(1,487		)	(1,487		)
Adjustment for noncontrolling interest						(160		)				(160		)	160			—
Dividends declared per common share and common unit ($0.485 per share/unit)									(49,849		)	(49,849		)	(981		)	(50,830		)
BALANCE AS OF JUNE 30, 2019	100,972,035		1,010			3,984,867			(70,345		)	3,915,532			271,371			4,186,903
Net income									43,846			43,846			4,452			48,298
Issuance of common stock	5,000,000		50			353,854						353,904						353,904
Issuance of share-based compensation awards						839						839						839
Non-cash amortization of share-based compensation (Note 7)						6,808						6,808						6,808
Exercise of stock options	15,000		—			639						639						639
Settlement of restricted stock units for shares of common stock	46,149		1			(1		)				—						—
Repurchase and cancellation of common stock, stock options, and restricted stock units	(21,268	)	(1		)	(1,651		)				(1,652		)				(1,652		)
Distributions to noncontrolling interests in consolidated property partnerships												—			(3,041		)	(3,041		)
Adjustment for noncontrolling interest						(3,059		)				(3,059		)	3,059			—
Dividends declared per common share and common unit ($0.485 per share/unit)									(52,208		)	(52,208		)	(981		)	(53,189		)
BALANCE AS OF SEPTEMBER 30, 2019	106,011,916		$	1,060		$	4,342,296		$	(78,707	)	$	4,264,649		$	274,860		$	4,539,509

See accompanying notes to consolidated financial statements.

4

KILROY REALTY CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited; in thousands)

	Nine Months Ended September 30,
	2020			2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	123,841		$	137,307
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	218,841			199,967
Depreciation of non-real estate furniture, fixtures and equipment	7,477			3,650
Revenue reversals (recoveries) for doubtful accounts (Note 8)	14,205			(3,685		)
Non-cash amortization of share-based compensation awards	24,290			20,200
Non-cash amortization of deferred financing costs and debt discounts and premiums	2,252			911
Non-cash amortization of net below market rents	(6,269		)	(6,241		)
Gain on sale of depreciable operating properties	—			(7,169		)
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(13,114		)	(14,947		)
Straight-line rents	(51,890		)	(48,725		)
Amortization of right of use ground lease assets	615			453
Net change in other operating assets	(4,245		)	(24,752		)
Net change in other operating liabilities	47,977			44,421
Net cash provided by operating activities	363,980			301,390
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development properties and undeveloped land	(386,237		)	(554,951		)
Expenditures for operating properties and other capital assets	(89,464		)	(99,479		)
Expenditures for acquisition of undeveloped land	—			(40,027		)
Net proceeds received from dispositions	—			17,271
Net increase in acquisition-related deposits	—			(49,998		)
Net cash used in investing activities	(475,701		)	(727,184		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock (Note 4)	721,675			353,904
Proceeds from the issuance of unsecured debt (Note 3)	772,297			499,390
Borrowings on unsecured revolving credit facility (Note 3)	190,000			630,000
Repayments on unsecured revolving credit facility (Note 3)	(435,000		)	(675,000		)
Principal payments and repayments of secured debt (Note 3)	(3,834		)	(75,844		)
Repayments of unsecured debt	(150,000		)	—
Financing costs	(6,216		)	(5,548		)
Repurchase of common stock and restricted stock units	(13,887		)	(14,269		)
Distributions to noncontrolling interests in consolidated property partnerships	(8,363		)	(10,844		)
Dividends and distributions paid to common stockholders and common unitholders	(165,986		)	(143,812		)
Proceeds from exercise of stock options	—			703
Net cash provided by financing activities	900,686			558,680
Net increase in cash and cash equivalents and restricted cash	788,965			132,886
Cash and cash equivalents and restricted cash, beginning of period	76,344			171,034
Cash and cash equivalents and restricted cash, end of period	$	865,309		$	303,920

See accompanying notes to consolidated financial statements.

5

ITEM 1: FINANCIAL STATEMENTS (UNAUDITED) OF KILROY REALTY, L.P.

KILROY REALTY, L.P.

CONSOLIDATED BALANCE SHEETS

(Unaudited; in thousands, except unit data)

	September 30, 2020			December 31, 2019
ASSETS
REAL ESTATE ASSETS:
Land and improvements	$	1,612,224		$	1,466,166
Buildings and improvements	6,535,637			5,866,477
Undeveloped land and construction in progress	1,938,923			2,296,130
Total real estate assets held for investment	10,086,784			9,628,773
Accumulated depreciation and amortization	(1,744,325		)	(1,561,361		)
Total real estate assets held for investment, net	8,342,459			8,067,412
CASH AND CASH EQUIVALENTS (Note 4)	849,009			60,044
RESTRICTED CASH	16,300			16,300
MARKETABLE SECURITIES (Note 10)	25,073			27,098
CURRENT RECEIVABLES, NET	16,083			26,489
DEFERRED RENT RECEIVABLES, NET	375,939			337,937
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET	208,306			212,805
RIGHT OF USE GROUND LEASE ASSETS (Note 9)	95,733			96,348
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 2)	55,706			55,661
TOTAL ASSETS	$	9,984,608		$	8,900,094
LIABILITIES AND CAPITAL
LIABILITIES:
Secured debt, net (Notes 3 and 10)	$	254,854		$	258,593
Unsecured debt, net (Notes 3, 10)	3,668,976			3,049,185
Unsecured line of credit (Notes 3 and 10)	—			245,000
Accounts payable, accrued expenses and other liabilities	458,421			418,848
Ground lease liabilities (Note 9)	97,936			98,400
Accrued distributions (Note 15)	59,416			53,219
Deferred revenue and acquisition-related intangible liabilities, net	131,558			139,488
Rents received in advance and tenant security deposits	61,483			66,503
Total liabilities	4,732,644			4,329,236
COMMITMENTS AND CONTINGENCIES (Note 9)
CAPITAL:
Common units, 115,247,221 and 106,016,287 held by the general partner and 1,931,574 and 2,023,287 held by common limited partners issued and outstanding, respectively (Note 6)	5,051,368			4,369,758
Noncontrolling interests in consolidated property partnerships and subsidiaries (Note 1)	200,596			201,100
Total capital	5,251,964			4,570,858
TOTAL LIABILITIES AND CAPITAL	$	9,984,608		$	8,900,094

See accompanying notes to consolidated financial statements.

6

KILROY REALTY, L.P.

CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited; in thousands, except unit and per unit data)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
REVENUES
Rental income (Note 8)	$	227,122		$	212,321		$	664,111		$	609,332
Other property income	1,192			3,204			4,954			7,887
Total revenues	228,314			215,525			669,065			617,219
EXPENSES
Property expenses	39,236			41,308			116,048			117,993
Real estate taxes	23,868			19,998			67,924			56,563
Ground leases (Note 9)	2,119			2,049			6,766			6,135
General and administrative expenses (Notes 7 and 10)	18,572			22,576			76,179			65,774
Leasing costs	986			1,192			3,772			5,599
Depreciation and amortization	71,863			69,230			226,318			203,617
Total expenses	156,644			156,353			497,007			455,681
OTHER (EXPENSES) INCOME
Interest income and other net investment gain (Note 10)	1,869			761			1,579			3,205
Interest expense (Note 3)	(19,468		)	(11,635		)	(49,796		)	(34,605		)
Gains on sales of depreciable operating properties	—			—			—			7,169
Total other (expenses) income	(17,599		)	(10,874		)	(48,217		)	(24,231		)
NET INCOME	54,071			48,298			123,841			137,307
Net income attributable to noncontrolling interests in consolidated property partnerships and subsidiaries	(4,343		)	(3,709		)	(13,886		)	(12,309		)
NET INCOME AVAILABLE TO COMMON UNITHOLDERS	$	49,728		$	44,589		$	109,955		$	124,998
Net income available to common unitholders per unit – basic (Note 12)	$	0.42		$	0.41		$	0.95		$	1.18
Net income available to common unitholders per unit – diluted (Note 12)	$	0.42		$	0.41		$	0.94		$	1.18
Weighted average common units outstanding – basic (Note 12)	117,158,160			106,864,463			114,394,706			104,276,187
Weighted average common units outstanding – diluted (Note 12)	117,599,493			107,383,191			114,864,764			104,895,884

See accompanying notes to consolidated financial statements.

7

KILROY REALTY, L.P.

CONSOLIDATED STATEMENTS OF CAPITAL

(Unaudited; in thousands, except unit and per unit data)

	Partners’ Capital					Noncontrolling Interests in Consolidated Property Partnerships and Subsidiaries
	Number of Common Units		Common Units						Total Capital
BALANCE AS OF DECEMBER 31, 2019	108,039,574		$	4,369,758		$	201,100		$	4,570,858
Net income			40,389			5,029			45,418
Issuance of common units (Note 4)	8,897,110		721,794						721,794
Issuance of share-based compensation awards			1,720						1,720
Non-cash amortization of share-based compensation (Note 7)			8,653						8,653
Settlement of restricted stock units	269,972		—						—
Repurchase of common units, stock options and restricted stock units	(117,445	)	(9,799		)				(9,799		)
Distributions to noncontrolling interests in consolidated property partnerships						(2,617		)	(2,617		)
Distributions declared per common unit ($0.485 per unit)			(58,512		)				(58,512		)
BALANCE AS OF MARCH 31, 2020	117,089,211		5,074,003			203,512			5,277,515
Net income			19,838			4,514			24,352
Issuance of common units	—		(45		)				(45		)
Issuance of share-based compensation awards			805						805
Non-cash amortization of share-based compensation (Note 7)			13,576						13,576
Settlement of restricted stock units	33,581		—						—
Repurchase of common units, stock options and restricted stock units	(11,668	)	(735		)				(735		)
Distributions to noncontrolling interests in consolidated property partnerships						(4,281		)	(4,281		)
Distributions declared per common unit ($0.485 per unit)			(57,598		)				(57,598		)
BALANCE AS OF JUNE 30, 2020	117,111,124		5,049,844			203,745			5,253,589
Net income			49,728			4,343			54,071
Issuance of common units	—		(74		)				(74		)
Issuance of share-based compensation awards			1,101						1,101
Non-cash amortization of share-based compensation (Note 7)			7,794						7,794
Settlement of restricted stock units	126,740		—						—
Repurchase of common units, stock options and restricted stock units	(59,069	)	(3,353		)				(3,353		)
Contribution of noncontrolling interests in consolidated subsidiary			6,034			(6,034		)	—
Distributions to noncontrolling interests in consolidated property partnerships						(1,458		)	(1,458		)
Distributions declared per common unit ($0.50 per unit)			(59,706		)				(59,706		)
BALANCE AS OF SEPTEMBER 30, 2020	117,178,795		$	5,051,368		$	200,596		$	5,251,964

8

	Partners’ Capital					Noncontrolling Interests in Consolidated Property Partnerships and Subsidiaries
	Number of Common Units		Common Units						Total Capital
BALANCE AS OF DECEMBER 31, 2018	102,772,275		$	4,003,700		$	197,561		$	4,201,261
Net income			37,508			4,286			41,794
Opening adjustment to Partners’ Capital upon adoption of ASC 842			(3,146		)				(3,146		)
Issuance of share-based compensation awards			2,210						2,210
Non-cash amortization of share-based compensation			8,817						8,817
Settlement of restricted stock units	393,240		—						—
Repurchase of common units, stock options and restricted stock units	(175,204	)	(12,130		)				(12,130		)
Distributions to noncontrolling interests in consolidated property partnerships						(6,309		)	(6,309		)
Distributions declared per common unit ($0.455 per unit)			(49,315		)				(49,315		)
BALANCE AS OF MARCH 31, 2019	102,990,311		3,987,644			195,538			4,183,182
Net income			42,901			4,314			47,215
Issuance of share-based compensation awards			820						820
Non-cash amortization of share-based compensation			8,732						8,732
Exercise of stock options	1,500		64						64
Settlement of restricted stock units	16,270		—						—
Repurchase and cancellation of common units, stock options, and restricted stock units	(12,759	)	(793		)				(793		)
Distributions to noncontrolling interests in consolidated property partnerships						(1,487		)	(1,487		)
Distributions declared per common unit ($0.485 per unit)			(50,830		)				(50,830		)
BALANCE AS OF JUNE 30, 2019	102,995,322		3,988,538			198,365			4,186,903
Net income			44,589			3,709			48,298
Issuance of common units	5,000,000		353,904						353,904
Issuance of share-based compensation awards	—		839						839
Non-cash amortization of share-based compensation (Note 7)			6,808						6,808
Exercise of stock options	15,000		639						639
Settlement of restricted stock units	46,149		—						—
Repurchase and cancellation of common units, stock options, and restricted stock units	(21,268	)	(1,652		)				(1,652		)
Distributions to noncontrolling interests in consolidated property partnerships						(3,041		)	(3,041		)
Distributions declared per common unit ($0.485 per unit)			(53,189		)				(53,189		)
BALANCE AS OF SEPTEMBER 30, 2019	108,035,203		$	4,340,476		$	199,033		$	4,539,509

See accompanying notes to consolidated financial statements.

9

KILROY REALTY, L.P.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited; in thousands)

	Nine Months Ended September 30,
	2020			2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	123,841		$	137,307
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	218,841			199,967
Depreciation of non-real estate furniture, fixtures and equipment	7,477			3,650
Revenue reversals (recoveries) for doubtful accounts (Note 8)	14,205			(3,685		)
Non-cash amortization of share-based compensation awards	24,290			20,200
Non-cash amortization of deferred financing costs and debt discounts and premiums	2,252			911
Non-cash amortization of net below market rents	(6,269		)	(6,241		)
Gain on sale of depreciable operating properties	—			(7,169		)
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(13,114		)	(14,947		)
Straight-line rents	(51,890		)	(48,725		)
Amortization of right of use ground lease assets	615			453
Net change in other operating assets	(4,245		)	(24,752		)
Net change in other operating liabilities	47,977			44,421
Net cash provided by operating activities	363,980			301,390
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development properties and undeveloped land	(386,237		)	(554,951		)
Expenditures for operating properties and other capital assets	(89,464		)	(99,479		)
Expenditures for acquisition of undeveloped land	—			(40,027		)
Net proceeds received from dispositions	—			17,271
Net decrease in acquisition-related deposits	—			(49,998		)
Net cash used in investing activities	(475,701		)	(727,184		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common units (Note 4)	721,675			353,904
Proceeds from the issuance of unsecured debt (Note 3)	772,297			499,390
Borrowings on unsecured revolving credit facility (Note 3)	190,000			630,000
Repayments on unsecured revolving credit facility (Note 3)	(435,000		)	(675,000		)
Principal payments and repayments of secured debt (Note 3)	(3,834		)	(75,844		)
Repayments of unsecured debt	(150,000		)	—
Financing costs	(6,216		)	(5,548		)
Repurchase of common units and restricted stock units	(13,887		)	(14,269		)
Distributions to noncontrolling interests in consolidated property partnerships	(8,363		)	(10,844		)
Dividends and distributions paid to common stockholders and common unitholders	(165,986		)	(143,812		)
Proceeds from exercise of stock options	—			703
Net cash provided by financing activities	900,686			558,680
Net increase in cash and cash equivalents and restricted cash	788,965			132,886
Cash and cash equivalents and restricted cash, beginning of period	76,344			171,034
Cash and cash equivalents and restricted cash, end of period	$	865,309		$	303,920

See accompanying notes to consolidated financial statements.

10

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

1.    Organization, Ownership and Basis of Presentation

Organization and Ownership

Kilroy Realty Corporation (the “Company”) is a self-administered real estate investment trust (“REIT”) active in premier office and mixed-use submarkets along the West Coast. We own, develop, acquire and manage real estate assets, consisting primarily of Class A properties in the coastal regions of Greater Los Angeles, San Diego County, the San Francisco Bay Area and Greater Seattle, which we believe have strategic advantages and strong barriers to entry. Class A real estate encompasses attractive and efficient buildings of high quality that are attractive to tenants, are well-designed and constructed with above-average material, workmanship and finishes and are well-maintained and managed. We qualify as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”). The Company’s common stock is publicly traded on the New York Stock Exchange (“NYSE”) under the ticker symbol “KRC”.

We own our interests in all of our real estate assets through Kilroy Realty, L.P. (the “Operating Partnership”). We generally conduct substantially all of our operations through the Operating Partnership. Unless stated otherwise or the context indicates otherwise, the terms “Kilroy Realty Corporation” or the “Company,” “we,” “our,” and “us” refer to Kilroy Realty Corporation and its consolidated subsidiaries and the term “Operating Partnership” refers to Kilroy Realty, L.P. and its consolidated subsidiaries. The descriptions of our business, employees and properties apply to both the Company and the Operating Partnership.

Our stabilized portfolio of operating properties was comprised of the following properties at September 30, 2020:

	Number of Buildings	Rentable Square Feet	Number of Tenants	Percentage  Occupied		Percentage Leased
Stabilized Office Properties (1)	114	14,329,607	461	92.2	%	95.5	%

________________________

(1) Includes stabilized retail space.

	Number of Buildings	Number of Units	2020 Average Occupancy
Stabilized Residential Property	1	200	87.8	%

Our stabilized portfolio includes all of our properties with the exception of development and redevelopment properties currently committed for construction, under construction, or in the tenant improvement phase, undeveloped land, recently completed residential properties not yet stabilized and real estate assets held for sale. We define redevelopment properties as those properties for which we expect to spend significant development and construction costs on the existing or acquired buildings pursuant to a formal plan, the intended result of which is a higher economic return on the property. We define properties in the tenant improvement phase as office properties that we are developing or redeveloping where the project has reached cold shell condition and is ready for tenant improvements, which may require additional major base building construction before being placed in service. Projects in the tenant improvement phase are added to our stabilized portfolio once the project reaches the earlier of 95% occupancy or one year from the date of the cessation of major base building construction activities. Costs capitalized to construction in progress for development and redevelopment properties are transferred to land and improvements, buildings and improvements, and deferred leasing costs on our consolidated balance sheets at the historical cost of the property as the projects are placed in service.

During the nine months ended September 30, 2020, we added two development projects to our stabilized portfolio consisting of 750,370 square feet of office space in San Francisco, California and 95,871 square feet of retail space in San Diego, California. As of September 30, 2020, the following properties were excluded from our stabilized portfolio. We did not have any redevelopment properties or properties held for sale at September 30, 2020.

	Number of Properties/Projects	Estimated Rentable Square Feet (1) / Units
In-process development projects - tenant improvement	4	1,435,000
In-process development projects - under construction (2)	3	856,000
Completed residential development project (3)	1	608 units

11

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

________________________

(1) Estimated rentable square feet upon completion.

(2) In addition to the estimated office and life science rentable square feet noted above, development projects under construction also include 193 residential units.

(3) Represents all three recently completed residential phases of our mixed-use development in San Diego, California that are not yet stabilized.

Our stabilized portfolio also excludes our future development pipeline, which as of September 30, 2020 was comprised of five future development sites, representing approximately 61 gross acres of undeveloped land.

As of September 30, 2020, all of our properties and development projects were owned and all of our business was conducted in the state of California with the exception of eight office properties, one development project in the tenant improvement phase and one future development project located in the state of Washington. All of our properties and development projects are 100% owned, excluding four office properties owned by three consolidated property partnerships. Two of the three consolidated property partnerships, 100 First Street Member, LLC (“100 First LLC”) and 303 Second Street Member, LLC (“303 Second LLC”), each owned one office property in San Francisco, California through subsidiary REITs. As of September 30, 2020, the Company owned a 56% common equity interest in both 100 First LLC and 303 Second LLC. The third consolidated property partnership, Redwood City Partners, LLC (“Redwood LLC”) owned two office properties in Redwood City, California. As of September 30, 2020, the Company owned an approximate 93% common equity interest in Redwood LLC. The remaining interests in all three property partnerships were owned by unrelated third parties.

Ownership and Basis of Presentation

The consolidated financial statements of the Company include the consolidated financial position and results of operations of the Company, the Operating Partnership, 303 Second LLC, 100 First LLC, Redwood LLC and all of our wholly-owned and controlled subsidiaries. The consolidated financial statements of the Operating Partnership include the consolidated financial position and results of operations of the Operating Partnership, 303 Second LLC, 100 First LLC, Redwood LLC and all of our wholly-owned and controlled subsidiaries. All intercompany balances and transactions have been eliminated in the consolidated financial statements.

As of September 30, 2020, the Company owned an approximate 98.4% common general partnership interest in the Operating Partnership. The remaining approximate 1.6% common limited partnership interest in the Operating Partnership as of September 30, 2020 was owned by non-affiliated investors and certain of our executive officers and directors. Both the general and limited common partnership interests in the Operating Partnership are denominated in common units. Generally, the number of common units held by the Company is equivalent to the number of outstanding shares of the Company’s common stock, and the rights of all the common units to quarterly distributions and payments in liquidation mirror those of the Company’s common stockholders. The common limited partners have certain redemption rights as provided in the Operating Partnership’s Seventh Amended and Restated Agreement of Limited Partnership, as amended, the “Partnership Agreement”. With the exception of the Operating Partnership and our consolidated property partnerships, all of our subsidiaries are wholly-owned.

The accompanying interim financial statements have been prepared by management in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and in conjunction with the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, the interim financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, the accompanying interim financial statements reflect all adjustments of a normal and recurring nature that are considered necessary for a fair presentation of the results for the interim periods presented. However, the results of operations for the interim periods are not necessarily indicative of the results that may be expected for the year ending December 31, 2020. The interim financial statements for the Company and the Operating Partnership should be read in conjunction with the audited consolidated financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2019.

Variable Interest Entities

The Operating Partnership is a variable interest entity (“VIE”) that is consolidated by the Company as the primary beneficiary as the Operating Partnership is a limited partnership in which the common limited partners do not have substantive kick-out or participating rights. At September 30, 2020, the consolidated financial statements of the Company included two VIEs in addition to the Operating Partnership: 100 First LLC and 303 Second LLC. At September 30, 2020, the Company and the Operating Partnership were determined to be the primary beneficiaries of these two VIEs since we had the ability to control the activities that most significantly impact each of the VIEs’ economic performance. As of September 30, 2020, the two VIEs’ total assets, liabilities and noncontrolling interests included on our consolidated balance sheet were approximately $477.6 million (of which $395.0 million related to real estate held for investment), approximately $35.3 million and approximately $194.9 million,

12

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

respectively. Revenues, income and net assets generated by 100 First LLC and 303 Second LLC may only be used to settle their contractual obligations, which primarily consist of operating expenses, capital expenditures and required distributions.

At December 31, 2019, the consolidated financial statements of the Company included four VIEs in which we were deemed to be the primary beneficiary (in addition to the Operating Partnership): two of the consolidated property partnerships, 100 First LLC and 303 Second LLC, and two entities established during the fourth quarter of 2019 to facilitate a Section 1031 Exchange. At December 31, 2019, the Company and the Operating Partnership were determined to be the primary beneficiaries of these four VIEs since we had the ability to control the activities that most significantly impact each of the VIEs’ economic performance. At December 31, 2019, the impact of consolidating the VIEs increased the Company’s total assets, liabilities and noncontrolling interests on our consolidated balance sheet by approximately $676.7 million (of which $598.0 million related to real estate held for investment), approximately $40.1 million and approximately $189.6 million, respectively.

Accounting Pronouncements Adopted January 1, 2020

ASU No. 2016-13 “Financial Instruments - Credit Losses (Topic 326)”

Effective January 1, 2020, we adopted Financial Accounting Standards Board (“FASB”) FASB Accounting Standards Update (“ASU”) No. 2016-13 (“ASU 2016-13”), which amends the accounting for credit losses for certain financial instruments. Under the new guidance, an entity recognizes its estimate of expected credit losses as an allowance, which the FASB believes will result in more timely recognition of such losses.  In November 2018, the FASB released ASU No. 2018-19 “Codification Improvements to Topic 326, Financial Instruments - Credit Losses.” This ASU clarifies that receivables arising from operating leases are not within the scope of Subtopic 326-20 “Financial Instruments – Credit Losses.” Instead, impairment of receivables arising from operating leases should be accounted for under Subtopic 842-30 “Leases – Lessor.” The adoption did not have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

ASU No. 2018-13 “Fair Value Measurement (Topic 820)”

Effective January 1, 2020, we adopted FASB ASU No. 2018-13 (“ASU 2018-13”), which amends the disclosure requirements for fair value measurements. The amendments in ASU 2018-13 include new, modified and eliminated disclosure requirements and are the result of a broader disclosure project called FASB Concepts Statement, Conceptual Framework for Financial Reporting - Chapter 8: Notes to Financial Statements (the “Concepts Statement”), which the FASB finalized on August 28, 2018. The FASB used the guidance in the Concepts Statement to improve the effectiveness of Topic 820’s disclosure requirements. The adoption did not have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

ASU No. 2018-15 “Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40)”

Effective January 1, 2020, we adopted FASB ASU No. 2018-15 (“ASU 2018-15”), which amends a customer’s accounting for implementation costs incurred in a cloud computing arrangement that is a service contract. ASU 2018-15 aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The adoption did not have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

COVID-19 Pandemic

The global impact of the COVID-19 pandemic continues to evolve rapidly and, as cases of the illness caused by the virus have continued to be identified in additional countries, many countries, including the United States, have reacted by instituting or re-instituting quarantines and restrictions on travel. In addition, all the states where we own properties and/or have development projects (i.e., California and Washington), have reacted to the COVID-19 pandemic by instituting quarantines, restrictions on travel, “shelter in place” rules, restrictions on types of business that may continue to operate and/or restrictions on types of construction projects that may continue.

13

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

COVID-19 Lease Modification Accounting Relief

Due to the business disruptions and challenges severely affecting the global economy caused by the COVID-19 pandemic, many lessors may be required to provide rent deferrals and other lease concessions to lessees. While the lease modification guidance in Accounting Standards Codification (“ASC”) Topic 842 (“Topic 842”) addresses routine changes to lease terms resulting from negotiations between the lessee and the lessor, this guidance did not contemplate concessions being so rapidly executed to address the sudden liquidity constraints of some lessees arising from the COVID-19 pandemic and restrictions intended to prevent its spread.

In April 2020, the FASB staff issued a question and answer document (the “Lease Modification Q&A”) focused on the application of lease accounting guidance to lease concessions provided as a result of the COVID-19 pandemic. Under existing lease guidance, the Company would have to determine, on a lease by lease basis, if a lease concession was the result of a new arrangement reached with the tenant (treated within the lease modification accounting framework) or if a lease concession was under the enforceable rights and obligations within the existing lease agreement (precluded from applying the lease modification accounting framework). The Lease Modification Q&A allows the Company, if certain criteria have been met, to bypass the lease by lease analysis, and instead elect to either apply the lease modification accounting framework or not, with such election applied consistently to leases with similar characteristics and similar circumstances. The Company has elected to apply such relief and availed itself of the election to avoid performing a lease by lease analysis. In addition, the Company has elected to apply the lease modification accounting framework consistently to leases within the property types in which it invests, specifically office, residential and retail properties.

2.    Prepaid Expenses and Other Assets, Net

Prepaid expenses and other assets, net consisted of the following at September 30, 2020 and December 31, 2019:

	September 30, 2020		December 31, 2019
	(in thousands)
Furniture, fixtures and other long-lived assets, net	$	42,899	$	35,286
Prepaid expenses	12,807		18,724
Note receivable (1)	—		1,651
Total prepaid expenses and other assets, net	$	55,706	$	55,661

________________________

(1) During the nine months ended September 30, 2020, the balance of the note receivable was written-off and the note receivable was placed on non-accrual status. We do not recognize interest income on non-accrual financing receivables. As of December 31, 2019 the note receivable was shown net of a valuation allowance of approximately $3.6 million.

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KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

3.    Secured and Unsecured Debt of the Operating Partnership

The Company generally guarantees all of the Operating Partnership’s unsecured debt obligations including the unsecured revolving credit facility, the unsecured term loan facility and all of the unsecured senior notes.

Unsecured Senior Notes - Registered Offering

In August 2020, the Operating Partnership issued $425.0 million aggregate principal amount of green unsecured senior notes in a registered public offering. The outstanding balance of the unsecured senior notes is included in unsecured debt, net of an initial issuance discount of $2.7 million, on our consolidated balance sheets. The unsecured senior notes, which are scheduled to mature on November 15, 2032, require semi-annual interest payments each May and November based on a stated annual interest rate of 2.500%. The Operating Partnership may redeem the notes at any time prior to August 15, 2032, either in whole or in part, subject to the payment of an early redemption premium prior to a par call option period commencing three months prior to maturity.

Unsecured Senior Notes - Private Placement

In April 2020, the Operating Partnership entered into a Note Purchase Agreement in connection with the issuance and sale of $350.0 million principal amount of the Operating Partnership’s 4.27% Senior Notes due January 31, 2031 (the “Notes”), pursuant to a private placement. The Notes mature on their due date, unless earlier redeemed or prepaid pursuant to the terms of the Note Purchase Agreement. Interest on the Notes is payable semi-annually in arrears on April 18 and October 18 of each year beginning October 18, 2020.

The Operating Partnership may, at its option and upon notice to the purchasers of the Notes, prepay at any time all, or from time to time, any part of the principal amount then outstanding (in an amount not less than 5% of the aggregate principal amount then outstanding in the case of a partial prepayment), at 100% of the principal amount so prepaid, plus the make-whole amount determined for the prepayment date with respect to such principal amount as set forth in the Note Purchase Agreement.

In connection with the issuance of the Notes, the Company entered into an agreement whereby it will guarantee the payment by the Operating Partnership of all amounts due with respect to the Notes and the performance by the Operating Partnership of its obligations under the Note Purchase Agreement.

Unsecured Revolving Credit Facility and Term Loan Facility

The following table summarizes the balance and terms of our unsecured revolving credit facility as of September 30, 2020 and December 31, 2019:

	September 30, 2020			December 31, 2019
	(in thousands)
Outstanding borrowings	$	—		$	245,000
Remaining borrowing capacity	750,000			505,000
Total borrowing capacity (1)	$	750,000		$	750,000
Interest rate (2)	1.15		%	2.76		%
Facility fee-annual rate (3)	0.200%
Maturity date	July 2022

________________________

(1) We may elect to borrow, subject to bank approval and obtaining commitments for any additional borrowing capacity, up to an additional $600.0 million under an accordion feature under the terms of the unsecured revolving credit facility and unsecured term loan facility.

(2) Our unsecured revolving credit facility interest rate was calculated based on the contractual rate of LIBOR plus 1.000% as of September 30, 2020 and December 31, 2019.

(3) Our facility fee is paid on a quarterly basis and is calculated based on the total borrowing capacity. In addition to the facility fee, we incurred debt origination and legal costs. As of September 30, 2020 and December 31, 2019, $2.4 million and $3.4 million of unamortized deferred financing costs, respectively, which are included in prepaid expenses and other assets, net on our consolidated balance sheets, remained to be amortized through the maturity date of our unsecured revolving credit facility.

The Company intends to borrow under the unsecured revolving credit facility from time to time for general corporate purposes, to finance development and redevelopment expenditures, to fund potential acquisitions, to potentially repay long-term debt and to supplement cash balances given uncertainties and volatility in market conditions.

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KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

In August 2020, the Company repaid in full the $150.0 million unsecured term loan facility. The following table summarizes the balance and terms of our unsecured term loan facility as of December 31, 2019:

	December 31, 2019
	(in thousands)
Outstanding borrowings	$	150,000
Remaining borrowing capacity	—
Total borrowing capacity (1)	$	150,000
Interest rate (2)	2.85		%
Undrawn facility fee-annual rate	0.200		%
Maturity date	July 2022

________________________

(1) As of December 31, 2019, $0.7 million of unamortized deferred financing costs remained to be amortized through the maturity date of our unsecured term loan facility.

(2) Our unsecured term loan facility interest rate was calculated based on the contractual rate of LIBOR plus 1.100% as of December 31, 2019.

Debt Covenants and Restrictions

The unsecured revolving credit facility, the unsecured term loan facility, the unsecured senior notes, the Series A and B Notes due 2026, Series A and B Notes due 2027 and 2029, and Notes due 2031 and certain other secured debt arrangements contain covenants and restrictions requiring us to meet certain financial ratios and reporting requirements. Some of the more restrictive financial covenants include a maximum ratio of total debt to total asset value, a minimum fixed-charge coverage ratio, a minimum unsecured debt ratio and a minimum unencumbered asset pool debt service coverage ratio. Noncompliance with one or more of the covenants and restrictions could result in the full principal balance of the associated debt becoming immediately due and payable. We believe we were in compliance with all of our debt covenants as of September 30, 2020.

Debt Maturities

The following table summarizes the stated debt maturities and scheduled amortization payments as of September 30, 2020:

Year	(in thousands)
Remaining 2020	$	1,304
2021	5,342
2022	5,554
2023	305,775
2024	431,006
2025	406,245
Thereafter	2,800,442
Total aggregate principal value (1)	$	3,955,668

________________________ 

(1) Includes gross principal balance of outstanding debt before the effect of the following at September 30, 2020: $23.3 million of unamortized deferred financing costs for the unsecured senior notes and secured debt and $8.5 million of unamortized discounts for the unsecured senior notes.

Capitalized Interest and Loan Fees

The following table sets forth gross interest expense, including debt discount/premium and deferred financing cost amortization, net of capitalized interest, for the three and nine months ended September 30, 2020 and 2019. The interest expense capitalized was recorded as a cost of development and increased the carrying value of undeveloped land and construction in progress.

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands)
Gross interest expense	$	38,807		$	32,220		$	111,069		$	95,507
Capitalized interest and deferred financing costs	(19,339		)	(20,585		)	(61,273		)	(60,902		)
Interest expense	$	19,468		$	11,635		$	49,796		$	34,605

16

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

4.    Stockholders’ Equity of the Company

Increase in Authorized Shares

On May 19, 2020, the Company’s stockholders approved a proposal to amend and restate the Company’s charter to increase the number of authorized shares of common stock that the Company has the authority to issue from 150,000,000 shares to 280,000,000 shares.

Forward Equity Offering and Settlement

On February 18, 2020, the Company entered into forward equity sale agreements with certain financial institutions acting as forward purchasers in connection with an offering of 5,750,000 shares of common stock at an initial gross offering price of $494.5 million, or $86.00 per share, before underwriting discounts, commissions and offering expenses. The forward purchasers borrowed and sold an aggregate of 5,750,000 shares of common stock in the offering. The Company did not receive any proceeds from the sale of its shares of common stock by the forward purchasers at the time of the offering.

On March 25, 2020, the Company physically settled these forward equity sale agreements. Upon settlement, the Company issued 5,750,000 shares of common stock for net proceeds of $474.9 million and contributed the net proceeds to the Operating Partnership in exchange for an equal number of units in the Operating Partnership.

At-The-Market Stock Offering Program

Under our at-the-market stock offering program, which commenced in June 2018, we may offer and sell shares of our common stock having an aggregate gross sales price up to $500.0 million from time to time in “at-the-market” offerings. In connection with our at-the-market program, the Company may enter into forward equity sale agreements with certain financial institutions acting as forward purchasers whereby, at our discretion, the forward purchasers may borrow and sell shares of our common stock under our at-the-market program. The use of a forward equity sale agreement allows the Company to lock in a share price on the sale of shares of our common stock at the time the agreement is executed but defer settling the forward equity sale agreements and receiving the proceeds from the sale of shares until a later date.

During the year ended December 31, 2019, the Company executed various 12-month forward equity sale agreements under our at-the-market program with financial institutions acting as forward purchasers to sell an aggregate of 3,147,110 shares of common stock at a weighted average sales price of $80.08 per share before commissions and offering expenses. The Company did not receive any proceeds from the sale of its shares of common stock by the forward purchasers at the time of sale.

In March 2020, the Company physically settled all forward equity sale agreements entered into in 2019. Upon settlement, the Company issued 3,147,110 shares of common stock for net proceeds of $247.3 million and contributed the net proceeds to the Operating Partnership in exchange for an equal number of units in the Operating Partnership. We did not enter into any forward equity sale agreements under our at-the-market program during the nine months ended September 30, 2020.

Since commencement of our current at-the-market program, we have completed sales of 3,594,576 shares of common stock through September 30, 2020. As of September 30, 2020, we may offer and sell shares of our common stock having an aggregate gross sales price up to approximately $214.2 million under our current at-the-market program.

The Company did not complete any direct sales of common stock under the program during the three or nine months ended September 30, 2020. The following table sets forth information regarding settlements of forward equity sale agreements under our at-the-market offering program for the nine months ended September 30, 2020:

	Nine Months Ended September 30, 2020
	(in millions, except share and per share data)
Shares of common stock settled during the period	3,147,110
Weighted average price per share of common stock	$	80.08
Aggregate gross proceeds	$	252.0
Aggregate net proceeds after selling commissions	$	247.3

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KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The proceeds from sales will be used to fund development expenditures and general corporate purposes. Actual future sales will depend upon a variety of factors, including but not limited to, market conditions, the trading price of the Company’s common stock and our capital needs. We have no obligation to sell the remaining shares available for sale under this program.

5.    Noncontrolling Interests on the Company’s Consolidated Financial Statements

Common Units of the Operating Partnership

The Company owned an approximate 98.4%, 98.1%, and 98.1% common general partnership interest in the Operating Partnership as of September 30, 2020, December 31, 2019 and September 30, 2019, respectively. The remaining approximate 1.6%, 1.9%, and 1.9% common limited partnership interest as of September 30, 2020, December 31, 2019 and September 30, 2019, respectively, was owned by non-affiliated investors and certain of our executive officers and directors in the form of noncontrolling common units. There were 1,931,574, 2,023,287 and 2,023,287 common units outstanding held by these investors, executive officers and directors as of September 30, 2020, December 31, 2019 and September 30, 2019, respectively.

The noncontrolling common units may be redeemed by unitholders for cash. Except under certain circumstances, we, at our option, may satisfy the cash redemption obligation with shares of the Company’s common stock on a one-for-one basis. If satisfied in cash, the value for each noncontrolling common unit upon redemption is the amount equal to the average of the closing quoted price per share of the Company’s common stock, par value $.01 per share, as reported on the NYSE for the ten trading days immediately preceding the applicable redemption date. The aggregate value upon redemption of the then-outstanding noncontrolling common units was $102.2 million and $167.7 million as of September 30, 2020 and December 31, 2019, respectively. This redemption value does not necessarily represent the amount that would be distributed with respect to each noncontrolling common unit in the event of our termination or liquidation. In the event of our termination or liquidation, it is expected in most cases that each common unit would be entitled to a liquidating distribution equal to the liquidating distribution payable in respect of each share of the Company’s common stock.

6.    Partners’ Capital of the Operating Partnership

Common Units Outstanding

The following table sets forth the number of common units held by the Company and the number of common units held by non-affiliated investors and certain of our executive officers and directors in the form of noncontrolling common units as well as the ownership interest held on each respective date:

	September 30, 2020		December 31, 2019		September 30, 2019
Company owned common units in the Operating Partnership	115,247,221		106,016,287		106,011,916
Company owned general partnership interest	98.4	%	98.1	%	98.1	%
Noncontrolling common units of the Operating Partnership	1,931,574		2,023,287		2,023,287
Ownership interest of noncontrolling interest	1.6	%	1.9	%	1.9	%

For further discussion of the noncontrolling common units as of September 30, 2020 and December 31, 2019, refer to Note 5.

18

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

7.    Share-Based Compensation

Stockholder Approved Share-Based Incentive Compensation Plan

As of September 30, 2020, we maintained one share-based incentive compensation plan, the Kilroy Realty 2006 Incentive Award Plan, as amended (the “2006 Plan”). The Company has a currently effective registration statement registering 10.7 million shares of our common stock for possible issuance under our 2006 Plan. As of September 30, 2020, approximately 1.6 million shares were available for grant under the 2006 Plan. The calculation of shares available for grant is presented after taking into account a reserve for a sufficient number of shares to cover the vesting and payment of 2006 Plan awards that were outstanding on that date, including performance-based vesting awards at (i) levels actually achieved for the performance conditions (as defined below) for which the performance period has been completed and (ii) at maximum levels for the other performance and market conditions (as defined below) for awards still in a performance period.

2020 Share-Based Compensation Grants

In January 2020, the Executive Compensation Committee of the Company’s Board of Directors awarded 263,626 restricted stock units (“RSUs”) to certain officers of the Company under the 2006 Plan, which included 154,267 RSUs (at the target level of performance) that are subject to market and/or performance-based vesting requirements (the “2020 Performance-Based RSUs”) and 109,359 RSUs that are subject to time-based vesting requirements (the “2020 Time-Based RSUs”). During the nine months ended September 30, 2020, 5,148 of the 2020 Time-Based RSUs were forfeited and 12,263 of the 2020 Performance-Based RSUs were forfeited.

2020 Performance-Based RSU Grant

The 2020 Performance-Based RSUs are scheduled to vest at the end of a three year period (consisting of calendar years 2020-2022). A target number of 2020 Performance-Based RSUs were awarded, and the final number of 2020 Performance-Based RSUs that vest (which may be more or less than the target number) will be based upon (1) the achievement of pre-set FFO per share goals for the year ending December 31, 2020 that applies to 100% of the Performance-Based RSUs awarded (the “FFO performance condition”) and (2) a performance measure that applies to 50% of the award based upon a measure of the Company’s average debt to EBITDA ratio for the three year performance period (the “debt to EBITDA ratio performance condition”) and a market measure that applies to the other 50% of the award based upon the relative ranking of the Company’s total stockholder return for the three year performance period compared to the total stockholder returns of an established comparison group of companies over the same period (the “market condition”). The 2020 Performance-Based RSUs are also subject to a three year service vesting provision (the “service vesting condition”) and are scheduled to cliff vest on the date the final vesting percentage is determined following the end of the three year performance period under the awards. The number of 2020 Performance-Based RSUs ultimately earned could fluctuate from the target number of 2020 Performance-Based RSUs granted based upon the levels of achievement for the FFO performance condition, the debt to EBITDA ratio performance condition, the market condition, and the extent to which the service vesting condition is satisfied. The estimate of the number of 2020 Performance-Based RSUs earned is evaluated quarterly during the performance period based on our estimate for each of the performance conditions measured against the applicable goals. During the nine months ended September 30, 2020, we recognized $3.2 million of compensation expense for the 2020 Performance-Based RSU grant. In the event we achieve a lower level of performance or fail to meet the FFO performance condition, we would reverse a portion or all of the $3.2 million of compensation expense in the fourth quarter of 2020. Compensation expense for the 2020 Performance-Based RSU grant is recognized on a straight-line basis over the requisite service period for each participant, which is generally the three year service vesting period.

Each 2020 Performance-Based RSU represents the right, subject to the applicable vesting conditions, to receive one share of our common stock in the future. The determination of the grant date fair value of the portion of the 2020 Performance-Based RSU grants covered by the debt to EBITDA ratio performance condition was based on the $82.57 share price on the January 31, 2020 grant date. The determination of the grant date fair value of the portion of the 2020 Performance-Based RSU grants covered by the market condition was calculated using a Monte Carlo simulation pricing model based on the assumptions in the table below, which resulted in a $84.54 grant date fair value per share.

19

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

	Fair Value Assumptions
Valuation date	January 31, 2020
Expected share price volatility	17.0%
Risk-free interest rate	1.35%
Fair value per share on valuation date (1)	$84.54

________________________

(1) Using the same Monte Carlo methodology and assumptions, the grant date fair value of one participant’s 2020 Performance-Based RSU grants was calculated as $85.52 per share.

The computation of expected volatility is based on a blend of the historical volatility of our shares of common stock over approximately 5.8 years, as that is expected to be most consistent with future volatility and equates to a time period twice as long as the approximate 2.9-year performance period of the RSUs, and implied volatility data based on the observed pricing of six month publicly-traded options on our shares of common stock. The risk-free interest rate is based on the yield curve on zero-coupon U.S. Treasury STRIP securities in effect at January 31, 2020.

The total grant date fair value of the 2020 Performance-Based RSU awards was $12.9 million on the January 31, 2020 grant date of the awards. For the three and nine months ended September 30, 2020, we recorded compensation expense based upon the grant date fair value per share for each component multiplied by the estimated number of RSUs to be earned.

2020 Time-Based RSU Grant

The 2020 Time-Based RSUs are scheduled to vest in three equal annual installments beginning on January 5, 2021 through January 5, 2023. Compensation expense for the 2020 Time-Based RSUs is recognized on a straight-line basis over the requisite service period for each participant, which is generally the three year service vesting period. Each 2020 Time-Based RSU represents the right to receive one share of our common stock in the future. The total grant date fair value of the 2020 Time-Based RSU awards was $9.0 million, which was based on the $82.57 closing share price of the Company’s common stock on the NYSE on the January 31, 2020 grant date of the awards.

2019 and 2018 Performance-Based RSUs

Total compensation cost for 2019 and 2018 performance-based RSUs for the three and nine months ended September 30, 2020 assumes the 2019 and 2018 debt to EBITDA ratio performance conditions are met at the maximum level of achievement.

Share-Based Compensation Cost Recorded During the Period

Share-based compensation costs for the three and nine months ended September 30, 2020 include $0.2 million and $4.5 million, respectively, of accelerated share-based compensation costs related to severance packages, including for the departure of an executive officer. The total compensation cost for all share-based compensation programs was $7.8 million and $6.8 million for the three months ended September 30, 2020 and 2019, respectively, and $30.0 million and $24.4 million for the nine months ended September 30, 2020 and 2019, respectively. Of the total share-based compensation costs, $1.8 million and $5.7 million was capitalized as part of real estate assets for the three and nine months ended September 30, 2020 and $0.7 million and $4.2 million was capitalized as part of real estate assets for the three and nine months ended September 30, 2019, respectively. As of September 30, 2020, there was approximately $42.6 million of total unrecognized compensation cost related to nonvested incentive awards granted under share-based compensation arrangements that is expected to be recognized over a weighted-average period of 1.6 years. The remaining compensation cost related to these nonvested incentive awards had been recognized in periods prior to September 30, 2020.

Severance Compensation

For the nine months ended September 30, 2020, compensation costs included in general and administrative expenses on our consolidated statements of operations include $14.1 million of cash severance costs related to the departure of an executive officer, in addition to the accelerated share-based compensation costs noted in the paragraph above.

20

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

8.    Rental Income and Future Minimum Rent

Our rental income is primarily comprised of payments defined under leases and are either subject to scheduled fixed increases or adjustments in rent based on the Consumer Price Index. Additionally, rental income includes variable payments for tenant reimbursements of property-related expenses and payments based on a percentage of tenant’s sales.

Under ASC Topic 842, we must perform a binary assessment of whether or not substantially all of the amounts due under a

tenant’s lease agreement are probable of collection. Such assessment involves using a methodology that incorporates a specific identification analysis and an aging analysis and considers the current economic and business environment. This determination requires significant judgment and estimates about matters that are uncertain at the time the estimates are made, including the creditworthiness of specific tenants, specific industry trends and conditions, and general economic trends and conditions. For leases that are deemed probable of collection, revenue continues to be recorded on a straight-line basis over the lease term. For leases that are deemed not probable of collection, revenue is recorded as the lesser of (i) the amount which would be recognized on a straight-line basis or (ii) cash that has been received from the tenant, with any tenant and deferred rent receivable balances charged as a direct write-off against rental income in the period of the change in the collectability determination.

For tenant and deferred rent receivables associated with leases whose rents are deemed probable of collection under Topic 842, we may record an allowance under other authoritative GAAP using a methodology that incorporates a specific identification analysis and an aging analysis and considers the current economic and business environment. This determination requires significant judgment and estimates about matters that are uncertain at the time the estimates are made, including the creditworthiness of specific tenants, specific industry trends and conditions, and general economic trends and conditions. Tenant and deferred rent receivables deemed probable of collection are carried net of allowances for uncollectible accounts, with increases or decreases in the allowances recorded through rental income on our consolidated statements of operations.

The table below sets forth the allocation of rental income between fixed and variable payments and collectability reversals or recoveries for the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands)
Fixed lease payments	$	197,295		$	181,994		$	585,257		$	524,174
Variable lease payments	31,650			30,470			93,059			82,654
Collectability (reversals) recoveries (1)	(1,823		)	(143		)	(14,205		)	2,504
Total rental income	$	227,122		$	212,321		$	664,111		$	609,332

______________

(1) Represents adjustments to rental income related to our assessment of the collectability of amounts due under leases with our tenants. For the three and nine months ended September 30, 2020, includes a reduction in revenue of $1.8 million and $14.2 million, respectively, primarily as a result of the COVID-19 pandemic.

We have operating leases with tenants that expire at various dates through 2044. Generally, the leases grant tenants renewal options. Future contractual minimum rent under operating leases as of September 30, 2020 for future periods is summarized as follows:

Year Ending	(in thousands)
Remaining 2020	$	174,957
2021	729,823
2022	804,938
2023	790,212
2024	748,183
2025	716,941
Thereafter	3,453,142
Total (1)	$	7,418,196

______________

(1) Excludes residential leases and leases with a term of one year or less.

21

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

9.    Commitments and Contingencies

General

As of September 30, 2020, we had commitments of approximately $737.4 million, excluding our ground lease commitments, for contracts and executed leases directly related to our operating and development properties.

Ground Leases

The following table summarizes our properties that are held subject to long-term noncancellable ground lease obligations and the respective contractual expiration dates:

Property	Contractual Expiration Date (1)
601 108th Ave NE, Bellevue, WA	November 2093
701, 801 and 837 N. 34th Street, Seattle, WA (2)	December 2041
1701 Page Mill Road and 3150 Porter Drive, Palo Alto, CA	December 2067
Kilroy Airport Center Phases I, II, and III, Long Beach, CA	July 2084
3243 S. La Cienega Boulevard, Los Angeles, CA	October 2106

____________________

(1) Reflects the contractual expiration date prior to the impact of any extension or purchase options held by the Company.

(2) The Company has three 10-year and one 45-year extension options for this ground lease, which if exercised would extend the expiration date to December 2116. These extension options are not assumed to be exercised in our calculation of the present value of the future minimum lease payments for this lease.

To determine the discount rates used to calculate the present value of the minimum future lease payments for our ground leases, we used a hypothetical curve derived from unsecured corporate borrowing rates over the lease term. The weighted average discount rate used to determine the present value of our minimum lease payments was 5.11%. As of September 30, 2020, the weighted average remaining lease term of our ground leases is 54 years. For the three months ended September 30, 2020 and 2019, variable lease costs totaling $0.7 million and $0.7 million, respectively, were recorded to ground lease expense on our consolidated statements of operations. For the nine months ended September 30, 2020 and 2019, variable lease costs totaling $2.4 million and $2.3 million, respectively, were recorded to ground leases expense on our consolidated statements of operations.

The minimum commitment under our ground leases as of September 30, 2020 for future periods is summarized as follows:

Year Ending	(in thousands)
Remaining 2020	$	1,411
2021	5,641
2022	5,642
2023	5,662
2024	5,662
2025	5,662
Thereafter	280,723
Total undiscounted cash flows (1)(2)(3)(4)(5)(6)	310,403
Present value discount	(212,467		)
Ground lease liabilities	$	97,936

________________________

(1) Excludes contingent future rent payments based on gross income or adjusted gross income and reflects the minimum ground lease obligations before the impact of ground lease extension options.

(2) One of our ground lease obligations is subject to a fair market value adjustment every five years; however, the lease includes ground rent subprotection and infrastructure rent credits which currently limit our annual rental obligations to $1.0 million. The contractual obligations for that ground lease included above assumes the lesser of $1.0 million or annual lease rental obligation in effect as of September 30, 2020.

(3) One of our ground lease obligations includes a component which is based on the percentage of gross income that exceeds the minimum ground rent. The minimum rent is subject to increases every five years based on 50% of the average annual percentage rent for the previous five years. The contractual obligations for that lease included above assume the current annual ground lease obligation in effect at September 30, 2020 for the remainder of the lease term since we cannot predict future adjustments.

(4) One of our ground lease obligations is subject to a fair market value adjustment every five years based on a combination of CPI adjustments and third-party appraisals limited to maximum increases annually. The contractual obligations for that lease included above assume the current annual ground lease obligation in effect at September 30, 2020 for the remainder of the lease term since we cannot predict future adjustments.

(5) One of our ground lease obligations includes a component which is based on the percentage of adjusted gross income that exceeds the minimum ground rent. The minimum rent is subject to increases every ten years by an amount equal to 60% of the average annual percentage rent for the previous three years. The contractual obligations for this lease included above assume the current annual ground lease obligation in effect at September 30, 2020 for the remainder of the lease term since we cannot predict future adjustments.

(6) One of our ground lease obligations is subject to fixed 5% ground rent increases every five years, with the next increase occurring on December 1, 2022.

22

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Environmental Matters

We follow the policy of monitoring all of our properties, including acquisition, development and existing stabilized portfolio properties, for the presence of hazardous or toxic substances. While there can be no assurance that a material environmental liability does not exist, we are not currently aware of any environmental liability with respect to our stabilized portfolio properties that would have a material adverse effect on our financial condition, results of operations and cash flow, or that we believe would require additional disclosure or the recording of a loss contingency.

As of September 30, 2020, we had accrued environmental remediation liabilities of approximately $72.0 million recorded on our consolidated balance sheets in connection with certain of our in-process and future development projects. The accrued environmental remediation liabilities represent the remaining costs we estimate we will incur prior to and during the development process at various development acquisition sites. These estimates, which we developed with the assistance of third party experts, consist primarily of the removal of contaminated soil, performing environmental closure activities, constructing remedial systems and other related costs since we are required to dispose of any existing contaminated soil and sometimes perform other environmental closure or remedial activities when we develop new buildings at these sites.

We record estimated environmental remediation obligations for acquired properties at the acquisition date when we are aware of such costs and when such costs are probable of being incurred and can be reasonably estimated. Estimated costs related to development environmental remediation liabilities are recorded as an increase to the cost of the development project. Actual costs are recorded as a decrease to the liability when incurred. These accruals are adjusted as an increase or decrease to the development project costs and as an increase or decrease to the accrued environmental remediation liability if we obtain further information or circumstances change. The environmental remediation obligations recorded at September 30, 2020 were not discounted to their present values since the amount and timing of cash payments are not fixed. It is possible that we could incur additional environmental remediation costs in connection with these development projects.  However, potential additional environmental costs for these development projects cannot be reasonably estimated at this time and certain changes in estimates could occur as the site conditions, final project timing, design elements, actual soil conditions and other aspects of the projects, which may depend upon municipal and other approvals beyond the control of the Company, are determined.

Other than the accrued environmental liabilities discussed above, we are not aware of any unasserted claims and assessments with respect to an environmental liability that we believe would require additional disclosure or the recording of an additional loss contingency.

23

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

10.    Fair Value Measurements and Disclosures

Assets and Liabilities Reported at Fair Value

The only assets we record at fair value on our consolidated financial statements are the marketable securities related to our Deferred Compensation Plan. The following table sets forth the fair value of our marketable securities as of September 30, 2020 and December 31, 2019:

	Fair Value (Level 1) (1)
	September 30, 2020		December 31, 2019
Description	(in thousands)
Marketable securities (2)	$	25,073	$	27,098

________________________

(1) Based on quoted prices in active markets for identical securities.

(2) The marketable securities are held in a limited rabbi trust.

We report the change in the fair value of the marketable securities at the end of each accounting period in interest income and other net investment gain (loss) in the consolidated statements of operations.

We also adjust the related Deferred Compensation Plan liability to fair value at the end of each accounting period based on the performance of the benchmark funds selected by each participant, which results in a corresponding increase or decrease to compensation cost included in general and administrative expenses on our consolidated statements of operations for the period.

The following table sets forth the net gain on marketable securities recorded during the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Description	(in thousands)				(in thousands)
Net gain on marketable securities	$	1,658	$	673	$	1,094	$	2,898

Financial Instruments Disclosed at Fair Value

The following table sets forth the carrying value and the fair value of our other financial instruments as of September 30, 2020 and December 31, 2019:

	September 30, 2020				December 31, 2019
	Carrying Value		Fair Value (1)		Carrying Value		Fair Value (1)
	(in thousands)
Liabilities
Secured debt, net	$	254,854	$	268,518	$	258,593	$	272,997
Unsecured debt, net	$	3,668,976	$	4,024,194	$	3,049,185	$	3,252,217
Unsecured line of credit	$	—	$	—	$	245,000	$	245,195

________________________

(1) Fair value calculated using Level II inputs, which are based on model-derived valuations in which significant inputs and significant value drivers are observable in active markets.

24

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

11.    Net Income Available to Common Stockholders Per Share of the Company

The following table reconciles the numerator and denominator in computing the Company’s basic and diluted per-share computations for net income available to common stockholders for the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	49,028		$	43,846		$	108,463		$	122,943
Allocation to participating securities (1)	(572		)	(530		)	(1,657		)	(1,582		)
Numerator for basic and diluted net income available to common stockholders	$	48,456		$	43,316		$	106,806		$	121,361
Denominator:
Basic weighted average vested shares outstanding	115,226,324			104,841,176			112,405,817			102,252,739
Effect of dilutive securities	441,333			518,728			470,058			619,697
Diluted weighted average vested shares and common stock equivalents outstanding	115,667,657			105,359,904			112,875,875			102,872,436
Basic earnings per share:
Net income available to common stockholders per share	$	0.42		$	0.41		$	0.95		$	1.19
Diluted earnings per share:
Net income available to common stockholders per share	$	0.42		$	0.41		$	0.95		$	1.18

________________________ 

(1) Participating securities include nonvested shares, certain time-based RSUs and vested market measure-based RSUs.

Share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are considered participating securities. The impact of potentially dilutive common shares, including stock options, RSUs and other securities are considered in our diluted earnings per share calculation for the three and nine months ended September 30, 2020 and 2019. Certain market measure-based RSUs are not included in dilutive securities for the three and nine months ended September 30, 2020 and 2019, as not all performance metrics had been met by the end of the applicable reporting periods. See Note 7 “Share-Based Compensation” for additional information regarding share-based compensation.

25

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

12.    Net Income Available to Common Unitholders Per Unit of the Operating Partnership

The following table reconciles the numerator and denominator in computing the Operating Partnership’s basic and diluted per-unit computations for net income available to common unitholders for the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands, except unit and per unit amounts)
Numerator:
Net income available to common unitholders	$	49,728		$	44,589		$	109,955		$	124,998
Allocation to participating securities (1)	(572		)	(530		)	(1,657		)	(1,582		)
Numerator for basic and diluted net income available to common unitholders	$	49,156		$	44,059		$	108,298		$	123,416
Denominator:
Basic weighted average vested units outstanding	117,158,160			106,864,463			114,394,706			104,276,187
Effect of dilutive securities	441,333			518,728			470,058			619,697
Diluted weighted average vested units and common unit equivalents outstanding	117,599,493			107,383,191			114,864,764			104,895,884
Basic earnings per unit:
Net income available to common unitholders per unit	$	0.42		$	0.41		$	0.95		$	1.18
Diluted earnings per unit:
Net income available to common unitholders per unit	$	0.42		$	0.41		$	0.94		$	1.18

________________________ 

(1) Participating securities include nonvested shares, certain time-based RSUs and vested market measure-based RSUs.

Share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are considered participating securities. The impact of potentially dilutive common units, including stock options, RSUs and other securities are considered in our diluted earnings per share calculation for the three and nine months ended September 30, 2020 and 2019. Certain market measure-based RSUs are not included in dilutive securities for the three and nine months ended September 30, 2020 and 2019, as not all performance metrics had been met by the end of the applicable reporting periods. See Note 7 “Share-Based Compensation” for additional information regarding share-based compensation.

26

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

13.    Supplemental Cash Flow Information of the Company

Supplemental cash flow information follows (in thousands):

	Nine Months Ended September 30,
	2020		2019
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $58,405 and $58,337 as of September 30, 2020 and 2019, respectively	$	35,898	$	28,139
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,686	$	3,917
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	154,253	$	148,468
Tenant improvements funded directly by tenants	$	9,118	$	10,254
Assumption of accrued liabilities in connection with acquisitions	$	—	$	3,967
Initial measurement of operating right of use ground lease assets	$	—	$	82,938
Initial measurement of operating ground lease liabilities	$	—	$	87,409
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders (Note 15)	$	59,416	$	53,205
Exchange of common units of the Operating Partnership into shares of the Company’s common stock	$	3,972	$	78

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2020 and 2019.

	Nine Months Ended September 30,
	2020		2019
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	60,044	$	51,604
Restricted cash at beginning of period	16,300		119,430
Cash and cash equivalents and restricted cash at beginning of period	$	76,344	$	171,034
Cash and cash equivalents at end of period	$	849,009	$	297,620
Restricted cash at end of period	16,300		6,300
Cash and cash equivalents and restricted cash at end of period	$	865,309	$	303,920

14.    Supplemental Cash Flow Information of the Operating Partnership:

Supplemental cash flow information follows (in thousands):

	Nine Months Ended September 30,
	2020		2019
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $58,405 and $58,337 as of September 30, 2020 and 2019, respectively	$	35,898	$	28,139
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,686	$	3,917
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	154,253	$	148,468
Tenant improvements funded directly by tenants	$	9,118	$	10,254
Assumption of accrued liabilities in connection with acquisitions	$	—	$	3,967
Initial measurement of operating right of use ground lease assets	$	—	$	82,938
Initial measurement of operating ground lease liabilities	$	—	$	87,409
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders (Note 15)	$	59,416	$	53,205

27

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2020 and 2019.

	Nine Months Ended September 30,
	2020		2019
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	60,044	$	51,604
Restricted cash at beginning of period	16,300		119,430
Cash and cash equivalents and restricted cash at beginning of period	$	76,344	$	171,034
Cash and cash equivalents at end of period	$	849,009	$	297,620
Restricted cash at end of period	16,300		6,300
Cash and cash equivalents and restricted cash at end of period	$	865,309	$	303,920

15.    Subsequent Events

On October 14, 2020, aggregate dividends, distributions and dividend equivalents of $59.4 million were paid to common stockholders, common unitholders and RSU holders of record on September 30, 2020.

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ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF

OPERATIONS

The following discussion relates to our consolidated financial statements and should be read in conjunction with the financial statements and notes thereto appearing elsewhere in this report. The results of operations discussion is combined for the Company and the Operating Partnership because there are no material differences in the results of operations between the two reporting entities.

Forward-Looking Statements

Statements contained in this “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations” that are not historical facts may be forward-looking statements. Forward-looking statements include, among other things, statements or information concerning our plans, objectives, capital resources, portfolio performance, results of operations, projected future occupancy and rental rates, lease expirations, debt maturities, potential investments, strategies such as capital recycling, development and redevelopment activity, projected construction costs, projected construction commencement and completion dates, projected square footage of space that could be constructed on undeveloped land that we own, projected rentable square footage of or number of units in properties under construction or in the development pipeline, anticipated proceeds from capital recycling activity or other dispositions and anticipated dates of those activities or dispositions, projected increases in the value of properties, dispositions, future executive incentive compensation, pending, potential or proposed acquisitions, plans to grow our Net Operating Income and FFO, our ability to re-lease properties at or above current market rates, anticipated market conditions and demographics and other forward-looking financial data, as well as the discussion in “—Factors That May Influence Future Results of Operations,” “—Liquidity and Capital Resource of the Company,” and “—Liquidity and Capital Resources of the Operating Partnership.” Forward-looking statements can be identified by the use of words such as “believes,” “expects,” “projects,” “may,” “will,” “should,” “seeks,” “approximately,” “intends,” “plans,” “pro forma,” “estimates” or “anticipates” and the negative of these words and phrases and similar expressions that do not relate to historical matters. Forward-looking statements are based on our current expectations, beliefs and assumptions, and are not guarantees of future performance. Forward-looking statements are inherently subject to uncertainties, risks, changes in circumstances, trends and factors that are difficult to predict, many of which are outside of our control. Accordingly, actual performance, results and events may vary materially from those indicated or implied in the forward-looking statements, and you should not rely on the forward-looking statements as predictions of future performance, results or events. Numerous factors could cause actual future performance, results and events to differ materially from those indicated in the forward-looking statements, including, among others: global market and general economic conditions and their effect on our liquidity and financial conditions and those of our tenants; adverse economic or real estate conditions generally, and specifically, in the States of California and Washington; risks associated with our investment in real estate assets, which are illiquid and with trends in the real estate industry; defaults on or non-renewal of leases by tenants; any significant downturn in tenants' businesses; our ability to re-lease property at or above current market rates; costs to comply with government regulations, including environmental remediation; the availability of cash for distribution and debt service and exposure to risk of default under debt obligations; increases in interest rates and our ability to manage interest rate exposure; the availability of financing on attractive terms or at all, which may adversely impact our future interest expense and our ability to pursue development, redevelopment and acquisition opportunities and refinance existing debt; a decline in real estate asset valuations, which may limit our ability to dispose of assets at attractive prices or obtain or maintain debt financing, and which may result in write-offs or impairment charges; significant competition, which may decrease the occupancy and rental rates of properties; potential losses that may not be covered by insurance; the ability to successfully complete acquisitions and dispositions on announced terms; the ability to successfully operate acquired, developed and redeveloped properties; the ability to successfully complete development and redevelopment projects on schedule and within budgeted amounts; delays or refusals in obtaining all necessary zoning, land use and other required entitlements, governmental permits and authorizations for our development and redevelopment properties; increases in anticipated capital expenditures, tenant improvement and/or leasing costs; defaults on leases for land on which some of our properties are located; adverse changes to, or enactment or implementations of, tax laws or other applicable laws, regulations or legislation, as well as business and consumer reactions to such changes; risks associated with joint venture investments, including our lack of sole decision-making authority, our reliance on co-venturers’ financial condition and disputes between us and our co-venturers; environmental uncertainties and risks related to natural disasters; our ability to maintain our status as a REIT; and uncertainties regarding the impact of the COVID-19 pandemic, and restrictions intended to prevent its spread, on our business and the economy generally. The factors included in this report are not exhaustive and additional factors could adversely affect our business and financial performance. For a discussion of additional factors that could materially adversely affect the Company’s and the Operating Partnership’s business and financial performance, see the discussion below and in “Part II – Other Information, Item 1A. Risk Factors” of this report, as well as in “Part I, Item 1A. Risk Factors” and “Part II, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Company’s and the Operating Partnership’s annual report on Form 10-K for the year ended December 31, 2019 and their respective other filings with the SEC. All forward-looking statements are based on information that was available and speak only as of the dates on which they were made. We assume no obligation

29

to update any forward-looking statement that becomes untrue because of subsequent events, new information or otherwise, except to the extent we are required to do so in connection with our ongoing requirements under federal securities laws.

Overview and Background

We are a self-administered REIT active in premier office and mixed-use submarkets along the West Coast. We own, develop, acquire and manage real estate assets, consisting primarily of Class A properties in the coastal regions of Greater Los Angeles, San Diego County, the San Francisco Bay Area and Greater Seattle, which we believe have strategic advantages and strong barriers to entry. We own our interests in all of our real properties through the Operating Partnership and generally conduct substantially all of our operations through the Operating Partnership. We owned an approximate 98.4%, 98.1%, and 98.1% general partnership interest in the Operating Partnership as of September 30, 2020, December 31, 2019 and September 30, 2019. All of our properties are held in fee except for the fourteen office buildings that are held subject to long-term ground leases for the land.

COVID-19 Response

In accordance with local and state government guidance and social distancing recommendations, the majority of our employees have worked remotely since March 2020. Our robust technology infrastructure was capable of supporting this model. We implemented rigorous protocols for remote work across the Company, including increased frequency of team update calls and frequent communication across leadership and working levels. We are leveraging technology to ensure our teams stay connected and productive, and that our culture remains strong even in these unusual circumstances.

Since March 2020, we have been highly focused on planning for the health and safety of our tenants and employees and preparing our buildings in accordance with the policies, protocols and applicable legal requirements in our regions. We engaged a hygienist to assist us in designing new standard operating procedures for our buildings that include, but are not limited to, air filtration, water quality, janitorial products and procedures, social separation and screening during building access and elevator use, the use of personal protective equipment, signage, and management of construction activities. Our buildings have remained open to tenants and we have begun to see certain tenants returning to the workplace where local ordinances and restrictions allow. We have been in communication with tenants regarding return to work protocols and safety measures, which meet or exceed best practices from state and local guidelines.

We have implemented a rent relief program for the majority of our retail tenants whereby we deferred rent since April 2020 in exchange for an extension of their current lease term for an equivalent number of months at future rental rates. We expect that we will continue to offer rent relief to the majority of our retail tenants, given that most cannot resume full operations in certain of our markets where strong state and local government restrictions remain or were put back into effect, although the form of relief offered may vary in the future. We did not create such a program for our office tenants. We evaluate office rent relief requests on a specific case by case basis and only consider those which have a justifiable financial basis. Our top 15 tenants represent 48.0% of our total annualized base rental revenues and as of September 30, 2020, we had collected 100% of the rent due from our top 15 tenants since the beginning of the COVID-19 pandemic. For residential tenants, deferrals of gross rent billings have been extended in accordance with the applicable local orders, which often require repayment within 12 months if such local ordinances are not extended.

We analyze our total lease receivable balances, tenant creditworthiness, specific industry trends and conditions, and current economic trends and conditions in order to evaluate whether we believe substantially all of the amounts due under a tenant’s lease agreement are deemed probable of collection over the term of the lease. For leases that are deemed probable of collection, revenue continues to be recorded on a straight-line basis over the lease term. For leases that are deemed not probable of collection, revenue is recorded as the lesser of (i) the amount which would be recognized on a straight-line basis or (ii) cash that has been received from the tenant, with any tenant and deferred rent receivable balances charged as a direct write-off against rental income in the period of the change in the collectability determination.

The following table sets forth information regarding the percent of contractual base rent and common area maintenance (“CAM”) billings (“gross rent billings”) billed, collected, forgiven, and deferred for the three months ended September 30, 2020:

30

					COVID-19 Modifications (3)						Non-COVID-19 Modifications (4)
Property Type	Gross Rent Billings (1) (in thousands)		Rent Collected (2)		Rent Forgiven (5)		Rent Deferred				Rent Deferred			Rent Outstanding (8)
							Collected (6)		Outstanding (7)		Collected (6)	Outstanding (7)
Office	$	191,625	97.8	%	—		—		0.3	%	—	0.3	%	1.6	%
Residential	4,155		89.4	%	—		0.1	%	8.5	%	—	—		2.0	%
Retail	7,529		47.5	%	3.5	%	—		25.6	%	—	10.9	%	12.5	%
Total	$	203,309	95.8	%	0.1	%	—		1.4	%	—	0.7	%	2.0	%

________________________

(1) Gross rent billings represents the total contractual base rent (including tenant direct-billed parking) and CAM billings before any COVID-19 related rent concessions for the three months ended September 30, 2020.

(2) Cash collections through September 30, 2020 as a percentage of gross rent billings.

(3) Rent concessions that qualify for the accounting relief provided by the FASB (as described in Note 1 “Organization and Basis of Presentation” to our consolidated financial statements included in this report), as total amounts due under the lease agreement are substantially the same or less than those that existed in the contract before modification.

(4) Rent concessions that do not qualify for the accounting relief provided by the FASB (as described in Note 1 “Organization and Basis of Presentation” to our consolidated financial statements included in this report), as total amounts due under the lease agreement are not substantially the same as those that existed in the contract before modification, or other modifications unrelated to the COVID-19 pandemic have been included.

(5) Amounts permanently forgiven as a percentage of gross rent billings.

(6) Collections of amounts deferred under repayment plans (as described above) and through lease term extensions as a percentage of gross rent billings.

(7) Remaining amounts deferred under repayment plans and through lease term extensions as a percentage of gross rent billings.

(8) Uncollected gross rent billings that have not been forgiven and are not subject to deferral arrangements as a percentage of gross rent billings. Such amounts are subject to the Company’s allowance for uncollectible accounts.

The following table sets forth information regarding the percent of contractual base rent and common area maintenance (“CAM”) billings (“gross rent billings”) billed, collected, forgiven, and deferred for the nine months ended September 30, 2020:

					COVID-19 Modifications (3)						Non-COVID-19 Modifications (4)
Property Type	Gross Rent Billings (1) (in thousands)		Rent Collected (2)		Rent Forgiven (5)		Rent Deferred				Rent Deferred			Rent Outstanding (8)
							Collected (6)		Outstanding (7)		Collected (6)	Outstanding (7)
Office	$	556,775	98.6	%	—		—		0.4	%	—	0.1	%	0.9	%
Residential	12,361		92.3	%	—		1.1	%	5.4	%	—	—		1.2	%
Retail	23,744		53.6	%	2.3	%	—		20.9	%	—	6.8	%	16.4	%
Total	$	592,880	96.7	%	0.1	%	—		1.3	%	—	0.4	%	1.5	%

________________________

(1) Gross rent billings represents the total contractual base rent (including tenant direct-billed parking) and CAM billings before any COVID-19 related rent concessions for the nine months ended September 30, 2020.

(2) Cash collections through September 30, 2020 as a percentage of gross rent billings.

(3) Rent concessions that qualify for the accounting relief provided by the FASB (as described in Note 1 “Organization and Basis of Presentation” to our consolidated financial statements included in this report), as total amounts due under the lease agreement are substantially the same or less than those that existed in the contract before modification.

(4) Rent concessions that do not qualify for the accounting relief provided by the FASB (as described in Note 1 “Organization and Basis of Presentation” to our consolidated financial statements included in this report), as total amounts due under the lease agreement are not substantially the same as those that existed in the contract before modification, or other modifications unrelated to the COVID-19 pandemic have been included.

(5) Amounts permanently forgiven as a percentage of gross rent billings.

(6) Collections of amounts deferred under repayment plans (as described above) and through lease term extensions as a percentage of gross rent billings.

(7) Remaining amounts deferred under repayment plans and through lease term extensions as a percentage of gross rent billings.

(8) Uncollected gross rent billings that have not been forgiven and are not subject to deferral arrangements as a percentage of gross rent billings. Such amounts are subject to the Company’s allowance for uncollectible accounts.

Deferrals of gross rent billings that have been extended to office and retail tenants during the period have been formalized by the execution of lease amendments that generally provide for repayment of deferred amounts through an extension of the lease term by an equivalent period of months to the deferral period.

As of the date of this report, across all property types, we have collected approximately 94% of our October 2020 gross rent billings, including 100% from all of our top 15 tenants. Excluding rent relief provided to certain tenants, across all property types, we collected 95% of our October 2020 gross rent billings. We are continuing to monitor the potential impact of the COVID-19 pandemic, and restrictions intended to prevent its spread, on occupancy, rental rates and rent collections. Although we are and will continue to be actively engaged in rent collection efforts related to uncollected rent for such period, as well as working with certain tenants who have requested rent deferrals, we can provide no assurance that such efforts or our efforts in future periods will be successful, particularly in the event that the COVID-19 pandemic, and restrictions intended to prevent its spread, continue for a prolonged period. Refer to “Part II – Other Information, Item IA. Risk Factors” included in this report for additional information about the potential impact of the COVID-19 pandemic, and restrictions intended to prevent its spread, on our business, financial condition, results of operations, cash flows, liquidity and ability to satisfy our debt service obligations and to pay dividends and distributions to security holders.

31

Factors That May Influence Future Results of Operations

Development Program

We believe that a portion of our long-term future growth will continue to come from the completion of our in-process development projects and, subject to market conditions, executing on our future development pipeline, including expanding entitlements. Over the past several years, we increased our focus on development opportunities and expanded our future development pipeline through targeted acquisitions of development opportunities on the West Coast.

We have a proactive planning process by which we continually evaluate the size, timing, costs and scope of our development program and, as necessary, scale activity to reflect the economic conditions and the real estate fundamentals that exist in our submarkets. We expect to execute on our development program with prudence and will be pursuing opportunities with attractive economic returns in strategic locations with proximity to public transportation or transportation access and retail amenities and in markets with strong fundamentals and visible demand. We plan to develop in phases as appropriate and we generally favor starting projects with pre-leasing activity, as appropriate.

The global impact of the COVID-19 pandemic continues to evolve rapidly and, as cases of the illness caused by the virus have continued to be identified in additional countries, many countries, including the United States, have reacted by instituting quarantines and restrictions on travel. In addition, all the states where we own properties and/or have development projects (i.e., California and Washington), have reacted to the COVID-19 pandemic by instituting quarantines, restrictions on travel, “shelter in place” rules, density limitations, social distancing measures, restrictions on types of business that may continue to operate and/or restrictions on types of construction projects that may continue, although, in certain cases, exceptions are available for essential retail, research and laboratory activities, essential building services, such as cleaning and maintenance, and certain essential construction projects. Our development portfolio was largely unaffected during the nine months ended September 30, 2020; however, the COVID-19 pandemic, and restrictions intended to prevent its spread, may cause delays or increase costs associated with building materials or construction services necessary for construction which could adversely impact our ability to continue or complete construction as planned, on budget or at all for our development projects, and may delay the start of construction on our future development pipeline projects. Refer to “Part II – Other Information, Item IA. Risk Factors” included in this report for additional information about the potential impact of the COVID-19 pandemic, and restrictions intended to prevent its spread, on our business, financial condition, results of operations, cash flows, liquidity and ability to satisfy our debt service obligations and to pay dividends and distributions to security holders.

Stabilized Development Projects

During the nine months ended September 30, 2020, we added the following projects to our stabilized portfolio:

• The Exchange on 16th, Mission Bay, San Francisco, California. We commenced construction on this project in June 2015. This project totals approximately 750,370 gross rentable square feet consisting of 738,081 square feet of office space and 12,289 square feet of retail space at a total estimated investment of $585.0 million. The office space in the project is 100% leased to Dropbox, Inc. We completed construction and commenced revenue recognition on the first two phases comprising approximately 82% of the project in 2019 and on the final phase of the project during the three months ended March 31, 2020.

• One Paseo (Retail) - Del Mar, San Diego, California. We commenced construction on the retail component of this mixed-use project in December 2016, which is comprised of approximately 95,871 square feet of retail space with a total estimated investment of $100.0 million. At September 30, 2020, the retail space of the project was 100% leased and 92% occupied.

Completed Residential Development Projects

As of September 30, 2020, we had completed all three phases of the following residential development project:

• One Paseo (Residential Phases I, II, and III) - Del Mar, San Diego, California. We commenced construction on the residential component of this mixed-use project in December 2016. Phases I, II, and III are comprised of 237, 225 and 146 residential units, respectively. We completed Phase I during the third quarter of 2019, Phase II during the first quarter of 2020, and Phase III during the third quarter of 2020. The total estimated investment for all three phases of the residential component of the project is approximately $390.0 million. As of the date of this report, 76% of the Phase I units were leased, 45% of the Phase II units were leased, and 22% of the Phase III units were leased.

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In-Process Development Projects - Tenant Improvement

As of September 30, 2020, the following projects were in the tenant improvement phase:

• Netflix // On Vine, Hollywood, California. We commenced construction on the office component of this mixed-use project in January 2018, which includes the project’s overall infrastructure and site work and approximately 355,000 square feet of office space for a total estimated investment of $300.0 million. The office space of this project is 100% leased to Netflix, Inc. We currently expect this project to stabilize in the fourth quarter of 2020.

• 333 Dexter, South Lake Union, Seattle, Washington. We commenced construction on this project in June 2017. This project encompasses approximately 635,000 square feet of office space at a total estimated investment of $410.0 million and 100% of the project is leased to a Fortune 50 publicly traded company. In June 2020, we completed construction and commenced revenue recognition on the first phase of the project, representing approximately 49% of the project. The remaining two phases are currently expected to stabilize in the second half of 2022.

• One Paseo (Office) - Del Mar, San Diego, California. We commenced construction on the office component of this project in December 2018, which encompasses 285,000 square feet of office space at a total estimated investment of $205.0 million. At September 30, 2020, the office component of the project was 91% leased. In June 2020, we completed construction and commenced revenue recognition on 22,000 square feet, representing approximately 8% of the project. During the three months ended September 30, 2020, we commenced revenue recognition on an additional 136,000 square feet, and in October 2020 we commenced revenue recognition on another 10,000 square feet, bringing the total revenue commenced on this project to approximately 59% as of the date of this report. We currently expect the project to stabilize in the second quarter of 2021.

• 9455 Towne Centre Drive, University Towne Center, San Diego, California. In March 2019, we commenced construction on this project which totals approximately 160,000 square feet of office space at a total estimated investment of $110.0 million. The project is 100% leased to a Fortune 50 publicly traded company. We currently expect this project to stabilize in the first quarter of 2021.

In-Process Development Projects - Under Construction

As of September 30, 2020, we had three projects in our in-process development pipeline that were under construction:

• Kilroy Oyster Point (Phase I), South San Francisco, California. In March 2019, we commenced construction on Phase I of this 39-acre life science campus situated on the waterfront in South San Francisco. This first phase encompasses approximately 656,000 square feet of office space at a total estimated investment of $570.0 million and is 100% leased to two tenants. We currently expect this project to stabilize in the fourth quarter of 2021.

• Living // On Vine, Hollywood, California. We commenced construction on the residential component of this project in December 2018, which encompasses 193 residential units at a total estimated investment of $200.0 million. We currently expect the residential component to be completed in the first quarter of 2021.

• 2100 Kettner, Little Italy, San Diego, California. We commenced construction on this project in September 2019. This project is comprised of approximately 200,000 square feet of office space for a total estimated investment of $140.0 million.

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Future Development Pipeline

As of September 30, 2020, our future development pipeline included five future projects located in Greater Seattle, the San Francisco Bay Area and San Diego County with an aggregate cost basis of approximately $1.0 billion at which we believe we could develop more than 6.0 million rentable square feet for a total estimated investment of approximately $5.0 billion to $7.0 billion, depending on successfully obtaining entitlements and market conditions.

The following table sets forth information about our future development pipeline.

Future Development Pipeline	Location	Approx. Developable Square Feet (1)	Total Costs as of 9/30/2020 ($ in millions) (2)
San Diego County
Santa Fe Summit – Phases II and III	56 Corridor	600,000 - 650,000	$	81.6
1335 Broadway & 901 Park Boulevard	East Village	TBD	47.4
San Francisco Bay Area
Kilroy Oyster Point - Phases II - IV	South San Francisco	1,750,000 - 1,900,000	343.8
Flower Mart	SOMA	2,300,000	425.9
Greater Seattle
SIX0 - Office & Residential	Seattle CBD	TBD	143.6
TOTAL:			$	1,042.3

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(1) The developable square feet and scope of projects could change materially from estimated data provided due to one or more of the following: any significant changes in the economy, market conditions, our markets, tenant requirements and demands, construction costs, new supply, regulatory and entitlement processes or project design.

(2) Represents cash paid and costs incurred, including accrued liabilities in accordance with GAAP, as of September 30, 2020.

Fluctuations in our development activities could cause fluctuations in the average development asset balances qualifying for interest and other carrying cost and internal cost capitalization in future periods. During the three and nine months ended September 30, 2020, we capitalized interest on in-process development projects and future development pipeline projects with an average aggregate cost basis of approximately $1.9 billion and $2.1 billion, respectively, as it was determined these projects qualified for interest and other carrying cost capitalization under GAAP. During the three and nine months ended September 30, 2019, we capitalized interest on in-process development projects and future development pipeline projects with an average aggregate cost basis of approximately $2.0 billion and $1.9 billion, respectively, as it was determined these projects qualified for interest and other carrying cost capitalization under GAAP. In the event of an extended cessation of development activities, such projects may potentially no longer qualify for capitalization of interest or other carrying costs. However, a cessation of development activities caused by events outside of our control, such as those as a result of government restrictions aimed at stopping the spread of COVID-19, would not impact our ability to capitalize interest and other carrying costs. For the three and nine months ended September 30, 2020, we capitalized $19.3 million and $61.3 million, respectively, of interest to our qualifying development projects. For the three and nine months ended September 30, 2019, we capitalized $20.6 million and $60.9 million, respectively, of interest to our qualifying development projects. For the three and nine months ended September 30, 2020, we capitalized $5.1 million and $16.4 million, respectively, of internal costs to our qualifying development projects. For the three and nine months ended September 30, 2019, we capitalized $6.8 million and $19.8 million, respectively, of internal costs to our qualifying development projects.

Capital Recycling Program. We continuously evaluate opportunities for the potential disposition of non-core properties and undeveloped land in our portfolio or the formation of strategic ventures with the intent of recycling the proceeds generated into capital used to fund new operating and development acquisitions, to finance development and redevelopment expenditures, to repay long-term debt and for other general corporate purposes. As part of this strategy, we attempt to enter into Section 1031 Exchanges and other tax deferred transaction structures, when possible, to defer some or all of the taxable gains on the sales, if any, for federal and state income tax purposes. See the “Liquidity and Capital Resources of the Operating Partnership – Liquidity Sources” section for further discussion of our capital recycling activities.

The timing of any potential future disposition or strategic venture transactions will depend on market conditions and other factors, including but not limited to our capital needs, the availability of financing for potential buyers (which has been and may continue to be constrained for some potential buyers due to the ongoing COVID-19 pandemic’s impact on economic and market conditions, including the financial markets), and our ability to defer some or all of the taxable gains on the sales. We cannot assure that we will dispose of any additional properties, enter into any additional strategic ventures, or that we will be able to identify and complete the acquisition of a suitable replacement property to effect a Section 1031 Exchange or be able to use other tax

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deferred structures in connection with our strategy. See the “Liquidity and Capital Resources of the Operating Partnership – Liquidity Sources” section for further information.

Acquisitions. As part of our growth strategy, which is highly dependent on market conditions and business cycles, among other factors, we continue to evaluate strategic opportunities and remain a disciplined buyer of development and redevelopment opportunities as well as value-add operating properties.  We focus on growth opportunities in West Coast markets populated by knowledge and creative based tenants in a variety of industries, including technology, media, healthcare, life sciences, entertainment and professional services.  Against the backdrop of market volatility, we expect to manage a strong balance sheet, execute on our development program and selectively evaluate opportunities that either add immediate Net Operating Income to our portfolio or play a strategic role in our future growth.

In connection with our growth strategy, we often have one or more potential acquisitions of properties and/or undeveloped land under consideration that are in varying stages of negotiation and due diligence review, or under contract, at any point in time. However, we cannot provide assurance that we will enter into any agreements to acquire properties, or undeveloped land, or, that the potential acquisitions contemplated by any agreements we may enter into the future will be completed. In addition, acquisitions are subject to various risks and uncertainties and we may be unable to complete an acquisition after making a nonrefundable deposit or incurring acquisition-related costs.

Incentive Compensation. Our Executive Compensation Committee determines compensation, including cash bonuses and equity incentives, for our executive officers, as defined in Rule 16 under the Exchange Act. For 2020, the annual cash bonus program was structured to allow the Executive Compensation Committee to evaluate a variety of key quantitative and qualitative metrics at the end of the year and make a determination based on the Company’s and management’s overall performance. Our Executive Compensation Committee also grants equity incentive awards from time to time that include performance-based and/or market-measure based vesting requirements and time-based vesting requirements. As a result, accrued incentive compensation and compensation expense for future awards may be affected by our operating and development performance, financial results, stock price, performance against applicable performance-based vesting goals, market conditions, liquidity measures and other factors. Consequently, we cannot predict the amounts that will be recorded in future periods related to such incentive compensation.

As of September 30, 2020, there was approximately $42.6 million of total unrecognized compensation cost related to outstanding nonvested shares of restricted common stock and RSUs issued under share-based compensation arrangements. Those costs are expected to be recognized over a weighted-average period of 1.6 years. The ultimate amount of compensation cost recognized related to outstanding nonvested RSUs issued under share-based compensation arrangements may vary for performance-based RSUs that are still in the performance period based on performance against applicable performance-based vesting goals. The $42.6 million of unrecognized compensation cost does not reflect the future compensation cost for any potential share-based awards that may be issued subsequent to September 30, 2020. Share-based compensation expense for potential future awards could be affected by our operating and development performance, financial results, stock price, performance against applicable performance-based vesting goals, market conditions and other factors. For additional information regarding our equity incentive awards, see Note 7 “Share-Based Compensation” to our consolidated financial statements included in this report.

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Information on Leases Commenced and Executed

Leasing Activity and Changes in Rental Rates. The amount of net rental income generated by our properties depends principally on our ability to maintain the occupancy rates of currently leased space and to lease currently available space, newly developed or redeveloped properties, newly acquired properties with vacant space, and space available from unscheduled lease terminations. The amount of rental income we generate also depends on our ability to maintain or increase rental rates in our submarkets. Negative trends in one or more of these factors could adversely affect our rental income in future periods. The following tables set forth certain information regarding leasing activity for our stabilized portfolio during the three and nine months ended September 30, 2020.

For Leases Commenced

	1st & 2nd Generation (1)(2)						2nd Generation (1)(2)
	Number of Leases (3)		Rentable Square Feet (3)		Retention Rates (4)		TI/LC per Sq. Ft. (5)		TI/LC per Sq. Ft. / Year		Changes in Rents (6)(7)		Changes in Cash Rents (8)		Weighted Average Lease Term (in months)
	New	Renewal	New	Renewal
Three Months Ended September 30, 2020	10	10	165,010	114,813	37.1	%	$	37.47	$	10.97	33.1	%	14.7	%	41
Nine Months Ended September 30, 2020	33	28	324,904	438,143	39.5	%	$	49.03	$	9.05	35.7	%	16.1	%	65

For Leases Executed ⁽⁹⁾ 

	1st & 2nd Generation (1)(2)				2nd Generation (1)(2)
	Number of Leases (3)		Rentable Square Feet (3)		TI/LC per Sq. Ft. (5)		TI/LC per Sq. Ft. / Year		Changes in Rents (6)(7)		Changes in Cash Rents (8)		Weighted Average Lease Term (in months)
	New	Renewal	New	Renewal
Three Months Ended September 30, 2020	3	10	8,250	114,813	$	5.13	$	3.62	32.1	%	14.6	%	17
Nine Months Ended September 30, 2020	15	28	193,125	438,143	$	48.01	$	8.73	35.7	%	17.5	%	66

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(1) Includes 100% of consolidated property partnerships.

(2) First generation leasing includes space where we have made capital expenditures that result in additional revenue generated when the space is re-leased. Second generation leasing includes space where we have made capital expenditures to maintain the current market revenue stream.

(3) Represents leasing activity for leases that commenced or were signed during the period, including first and second generation space, net of month-to-month leases. Excludes leasing on new construction.

(4) Calculated as the percentage of space either renewed or expanded into by existing tenants or subtenants at lease expiration.

(5) Tenant improvements and leasing commissions per square foot exclude tenant-funded tenant improvements.

(6) Calculated as the change between GAAP rents for new/renewed leases and the expiring GAAP rents for the same space. Excludes leases for which the space was vacant longer than one year or vacant when the property was acquired.

(7) Excludes commenced and executed leases of approximately 135,727 and 1,236 rentable square feet, respectively, for the three months ended September 30, 2020 and commenced and executed leases of approximately 250,269 and 72,104 rentable square feet, respectively, for the nine months ended September 30, 2020, for which the space was vacant longer than one year or being leased for the first time. Space vacant for more than one year is excluded from our change in rents calculations to provide a more meaningful market comparison.

(8) Calculated as the change between stated rents for new/renewed leases and the expiring stated rents for the same space. Excludes leases for which the space was vacant longer than one year or vacant when the property was acquired.

(9) During the three months ended September 30, 2020, 2 new leases totaling 1,924 square feet were signed but not commenced as of September 30, 2020. For the nine months ended September 30, 2020, 7 new leases totaling 114,553 square feet were signed but not commenced as of September 30, 2020.

Our rental rates and occupancy are impacted by general economic conditions, including the pace of regional economic growth, access to capital, and potentially the current COVID-19 pandemic and restrictions intended to prevent its spread. Therefore, we cannot give any assurance that leases will be renewed or that available space will be re-leased at rental rates equal to or above the current market rates. In addition, due to uncertainty of current market events as a result of the COVID-19 pandemic and the impact it has had on recent transaction volume in our markets, we are currently unable to provide meaningful information on the weighted average cash rental rates for our total stabilized portfolio compared to current market rates at September 30, 2020. In addition it is possible that the COVID-19 pandemic may have an adverse impact on our ability to renew leases or re-lease available space in our properties on favorable terms or at all in the future, including as a result of a deterioration in the economic and market conditions due to restrictions intended to prevent the spread of COVID-19. These restrictions and social distancing guidelines limited our ability to physically show space to prospective tenants. Additionally, decreased demand, increased competition (including sublease space available from our tenants) and other negative trends or unforeseeable events that impair our ability to timely renew or re-lease space could have further negative effects on our future financial condition, results of operations, and cash flows.

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Scheduled Lease Expirations. The following tables set forth certain information regarding our lease expirations for our stabilized portfolio for the remainder of 2020 and the next five years and by region for the remainder of 2020 and in 2021.

Lease Expirations ⁽¹⁾ 

Year of Lease Expiration	Number of Expiring Leases	Total Square Feet	% of Total Leased Sq. Ft.		Annualized Base Rent (2)(3)		% of Total Annualized Base Rent (2)		Annualized Base Rent per Sq. Ft. (2)
					(in thousands)
Remainder of 2020	19	285,979	2.2	%	$	12,281	1.8	%	$	42.94
2021	74	624,156	4.8	%	27,479		3.9	%	44.03
2022	69	853,426	6.5	%	36,742		5.2	%	43.05
2023	79	1,264,737	9.7	%	67,187		9.6	%	53.12
2024	58	959,822	7.4	%	46,938		6.7	%	48.90
2025	57	646,079	5.0	%	31,681		4.5	%	49.04
Total	356	4,634,199	35.6	%	$	222,308	31.7	%	$	47.97

Year	Region	# of Expiring Leases	Total Square Feet	% of Total Leased Sq. Ft.		Annualized Base Rent (2)(3)		% of Total Annualized Base Rent (2)		Annualized Rent per Sq. Ft. (2)
2020	Greater Los Angeles	11	188,743	1.4	%	$	7,407	1.1	%	$	39.24
	San Diego	4	41,294	0.3	%	1,275		0.2	%	30.88
	San Francisco Bay Area	4	55,942	0.5	%	3,599		0.5	%	64.33
	Greater Seattle	—	—	—	%	—		—	%	—
	Total	19	285,979	2.2	%	$	12,281	1.8	%	$	42.94
2021	Greater Los Angeles	46	238,684	1.8	%	$	9,619	1.4	%	$	40.30
	San Diego	15	140,808	1.1	%	5,474		0.8	%	38.88
	San Francisco Bay Area	9	232,887	1.8	%	11,893		1.6	%	51.07
	Greater Seattle	4	11,777	0.1	%	493		0.1	%	41.86
	Total	74	624,156	4.8	%	$	27,479	3.9	%	$	44.03

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(1) For leases that have been renewed early with existing tenants, the expiration date and annualized base rent information presented takes into consideration the renewed lease terms. Excludes leases not commenced as of September 30, 2020, space leased under month-to-month leases, storage leases, vacant space and future lease renewal options not executed as of September 30, 2020.

(2) Annualized base rent includes the impact of straight-lining rent escalations and the amortization of free rent periods and excludes the impact of the following: amortization of deferred revenue related tenant-funded tenant improvements, amortization of above/below market rents, amortization for lease incentives due under existing leases and expense reimbursement revenue. Additionally, the underlying leases contain various expense structures including full service gross, modified gross and triple net. Percentages represent percentage of total portfolio annualized contractual base rental revenue. For additional information on tenant improvement and leasing commission costs incurred by the Company for the current reporting period, please see further discussion under the caption “Information on Leases Commenced and Executed.”

(3) Includes 100% of annualized base rent of consolidated property partnerships.

In addition to the 1.1 million rentable square feet, or 7.8%, of currently available space in our stabilized portfolio, leases representing approximately 2.2% and 4.8% of the occupied square footage of our stabilized portfolio are scheduled to expire during the remainder of 2020 and in 2021, respectively. The leases scheduled to expire during the remainder of 2020 and in 2021 represent approximately 0.9 million rentable square feet or 5.7% of our total annualized base rental revenue. Adjusting for leases executed as of September 30, 2020 but not yet commenced, the remaining 2020 and 2021 expirations would be 212,094 and 497,976 square feet, respectively.

Sublease Space.  Of our leased space as of September 30, 2020, approximately 1,295,199 rentable square feet, or 9.0% of the square footage in our stabilized portfolio, was available for sublease, primarily in the San Francisco Bay Area and Greater Seattle regions. Of the 9.0% of available sublease space in our stabilized portfolio as of September 30, 2020, approximately 6.3% was vacant space, and the remaining 2.7% was occupied. Of the approximately 1,295,199 rentable square feet available for sublease as of September 30, 2020, approximately 10,441 rentable square feet representing one lease is scheduled to expire in 2020, and approximately 14,934 rentable square feet representing six leases are scheduled to expire in 2021.

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Stabilized Portfolio Information

As of September 30, 2020, our stabilized portfolio was comprised of 114 office properties encompassing an aggregate of approximately 14.3 million rentable square feet and 200 residential units at our residential tower in Hollywood, California. Our stabilized portfolio includes all of our properties with the exception of development and redevelopment properties currently committed for construction, under construction, or in the tenant improvement phase, undeveloped land, recently completed residential properties not yet stabilized and real estate assets held for sale. We define redevelopment properties as those properties for which we expect to spend significant development and construction costs on the existing or acquired buildings pursuant to a formal plan, the intended result of which is a higher economic return on the property. We define properties in the tenant improvement phase as office properties that we are developing or redeveloping where the project has reached cold shell condition and is ready for tenant improvements, which may require additional major base building construction before being placed in service. Projects in the tenant improvement phase are added to our stabilized portfolio once the project reaches the earlier of 95% occupancy or one year from the date of the cessation of major base building construction activities. Costs capitalized to construction in progress for development and redevelopment properties are transferred to land and improvements, buildings and improvements, and deferred leasing costs on our consolidated balance sheets as the historical cost of the property as the projects are placed in service.

We did not have any redevelopment or held for sale properties at September 30, 2020. Our stabilized portfolio also excludes our future development pipeline, which as of September 30, 2020 was comprised of five potential development sites, representing approximately 61 gross acres of undeveloped land on which we believe we have the potential to develop more than 6.0 million rentable square feet, depending upon economic conditions.

As of September 30, 2020, the following properties were excluded from our stabilized portfolio:

	Number of Properties/Projects	Estimated Rentable Square Feet (1) / Units
In-process development projects - tenant improvement	4	1,435,000
In-process development projects - under construction (2)	3	856,000
Completed residential development project (3)	1	608 units

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(1) Estimated rentable square feet upon completion.

(2) In addition to the estimated office and life science rentable square feet noted above, development projects under construction also include 193 residential units.

(3) Represents all three recently completed residential phases at our mixed-use development in San Diego, California that are not yet stabilized.

The following table reconciles the changes in the rentable square feet in our stabilized office portfolio of operating properties from September 30, 2019 to September 30, 2020:

	Number of Buildings	Rentable Square Feet
Total as of September 30, 2019	93	13,322,212
Acquisitions	19	151,908
Completed development properties placed in-service	2	846,241
Remeasurement	—	9,246
Total as of September 30, 2020 (1)	114	14,329,607

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(1) Includes four properties owned by consolidated property partnerships (see Note 1 “Organization, Ownership and Basis of Presentation” to our consolidated financial statements included in this report for additional information).

Occupancy Information

The following table sets forth certain information regarding our stabilized portfolio:

Region	Number of Buildings	Rentable Square Feet	Occupancy at (1)
			9/30/2020		6/30/2020		12/31/2019
Greater Los Angeles	51	4,031,201	90.8	%	91.2	%	95.2	%
San Diego County	22	2,146,706	86.7	%	87.4	%	89.7	%
San Francisco Bay Area	33	6,349,910	94.2	%	93.7	%	95.0	%
Greater Seattle	8	1,801,790	94.7	%	95.9	%	97.7	%
Total Stabilized Office Portfolio	114	14,329,607	92.2	%	92.3	%	94.6	%

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	Average Occupancy
	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Stabilized Office Portfolio (1)	92.3	%	93.2	%	92.9	%	93.3	%
Same Store Portfolio (2)	92.0	%	93.8	%	92.7	%	93.6	%
Residential Portfolio (3)	85.0	%	87.8	%	87.8	%	78.5	%

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(1) Occupancy percentages reported are based on our stabilized office portfolio as of the end of the period presented and exclude occupancy percentages of properties held for sale.

(2) Occupancy percentages reported are based on office properties owned and stabilized as of January 1, 2019 and still owned and stabilized as of September 30, 2020 and exclude our residential portfolio. See discussion under “Results of Operations” for additional information.

(3) Our residential portfolio consists of our 200-unit residential tower located in Hollywood, California and excludes 608 recently completed residential units that are not yet stabilized.

Significant Tenants

The following table sets forth information about our 15 largest tenants based upon annualized base rental revenues, as defined below, as of September 30, 2020. We have collected October 2020 contractual rents from all of our top 15 tenants.

Tenant Name	Region	Annualized Base Rental Revenue (1) (2)		Rentable Square Feet	Percentage of Total Annualized Base Rental Revenue		Percentage of Total Rentable Square Feet		Year(s) of Lease Expiration
		(in thousands)
Dropbox, Inc.	San Francisco Bay Area	$	55,998	738,081	7.8	%	5.0	%	2033
GM Cruise, LLC	San Francisco Bay Area	36,337		374,618	5.1	%	2.6	%	2031
LinkedIn Corporation / Microsoft Corporation	San Francisco Bay Area	29,752		663,460	4.2	%	4.5	%	2024 / 2026
Adobe Systems, Inc.	San Francisco Bay Area / Greater Seattle	27,897		513,111	3.9	%	3.5	%	2027 / 2031
salesforce.com, inc.	San Francisco Bay Area	24,076		451,763	3.4	%	3.1	%	2031 / 2032
DIRECTV, LLC	Greater Los Angeles	23,152		684,411	3.2	%	4.7	%	2027
Box, Inc.	San Francisco Bay Area	22,441		371,792	3.1	%	2.5	%	2021 / 2028
Okta, Inc.	San Francisco Bay Area	22,331		265,979	3.1	%	1.8	%	2028
Riot Games, Inc.	Greater Los Angeles	15,554		251,509	2.2	%	1.7	%	2023 / 2024
Synopsys, Inc.	San Francisco Bay Area	15,492		340,913	2.2	%	2.3	%	2030
Fortune 50 Publicly-Traded Company	Greater Seattle	15,355		311,983	2.2	%	2.1	%	2033
Amazon.com	Greater Seattle	14,760		348,880	2.1	%	2.4	%	2023 / 2030
Viacom International, Inc.	Greater Los Angeles	13,718		211,343	1.9	%	1.4	%	2028
DoorDash, Inc	San Francisco Bay Area	13,531		135,137	1.9	%	0.9	%	2032
Nektar Therapeutics, Inc.	San Francisco Bay Area	12,297		135,350	1.7	%	0.9	%	2030
Total		$	342,691	5,798,330	48.0	%	39.4	%

________________________

(1) Annualized base rental revenue includes the impact of straight-lining rent escalations and the amortization of free rent periods and excludes the impact of the following: amortization of deferred revenue related tenant-funded tenant improvements, amortization of above/below market rents, amortization for lease incentives due under existing leases, and expense reimbursement revenue. Excludes month-to-month leases and vacant space as of September 30, 2020.

(2) Includes 100% of the annualized base rental revenues of consolidated property partnerships.

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Results of Operations

Net Operating Income

Management internally evaluates the operating performance and financial results of our stabilized portfolio based on Net Operating Income. We define “Net Operating Income” as consolidated operating revenues (rental income and other property income) less consolidated operating expenses (property expenses, real estate taxes and ground leases).

Net Operating Income is considered by management to be an important and appropriate supplemental performance measure to net income because we believe it helps both investors and management to understand the core operations of our properties excluding corporate and financing-related costs and non-cash depreciation and amortization. Net Operating Income is an unlevered operating performance metric of our properties and allows for a useful comparison of the operating performance of individual assets or groups of assets. This measure thereby provides an operating perspective not immediately apparent from GAAP income from operations or net income. In addition, Net Operating Income is considered by many in the real estate industry to be a useful starting point for determining the value of a real estate asset or group of assets. Other real estate companies may use different methodologies for calculating Net Operating Income, and accordingly, our presentation of Net Operating Income may not be comparable to other real estate companies. Because of the exclusion of the items shown in the reconciliation below, Net Operating Income should only be used as a supplemental measure of our financial performance and not as an alternative to GAAP income from operations or net income.

Management further evaluates Net Operating Income by evaluating the performance from the following property groups:

• Same Store Properties – includes the consolidated results of all of the office properties that were owned and included in our stabilized portfolio for two comparable reporting periods, i.e., owned and included in our stabilized portfolio as of January 1, 2019 and still owned and included in the stabilized portfolio as of September 30, 2020, including our residential tower in Hollywood, California;

• Development Properties – includes the results generated by certain of our in-process development projects, expenses for certain of our future development project and the results generated by our 608 completed residential units that are not yet stabilized and the following stabilized development properties:

◦One office development project that was added to the stabilized portfolio in the second quarter of 2019;

◦One office development project that was added to the stabilized portfolio in the first quarter of 2020; and

◦One retail development project that was added to the stabilized portfolio in the first quarter of 2020;

• Acquisition Properties – includes the results, from the dates of acquisition through the periods presented, for the 19-building creative office campus we acquired during 2019; and

• Disposition Properties– includes the results of the one property disposed of in the second quarter of 2019 and the one property disposed of in the fourth quarter of 2019.

The following table sets forth certain information regarding the property groups within our stabilized office portfolio as of September 30, 2020:

Group	# of Buildings	Rentable Square Feet
Same Store Properties	92	12,937,118
Stabilized Development Properties	3	1,240,581
Acquisition Properties	19	151,908
Total Stabilized Portfolio	114	14,329,607

40

Comparison of the Three Months Ended September 30, 2020 to the Three Months Ended September 30, 2019

The following table summarizes our Net Operating Income, as defined, for our total portfolio for the three months ended September 30, 2020 and 2019.

	Three Months Ended September 30,						Dollar Change			Percentage Change
	2020			2019
	($ in thousands)
Reconciliation of Net Income Available to Common Stockholders to Net Operating Income, as defined:
Net Income Available to Common Stockholders	$	49,028		$	43,846		$	5,182		11.8	%
Net income attributable to noncontrolling common units of the Operating Partnership	785			852			(67		)	(7.9	)%
Net income attributable to noncontrolling interests in consolidated property partnerships	4,258			3,600			658			18.3	%
Net income	$	54,071		$	48,298		$	5,773		12.0	%
Unallocated expense (income):
General and administrative expenses	18,572			22,576			(4,004		)	(17.7	)%
Leasing costs	986			1,192			(206		)	(17.3	)%
Depreciation and amortization	71,863			69,230			2,633			3.8	%
Interest income and other net investment gain	(1,869		)	(761		)	(1,108		)	145.6	%
Interest expense	19,468			11,635			7,833			67.3	%
Net Operating Income, as defined	$	163,091		$	152,170		$	10,921		7.2	%

The following tables summarize our Net Operating Income, as defined, for our total portfolio for the three months ended September 30, 2020 and 2019.

	Three Months Ended September 30,
	2020										2019
	Same Store		Develop-ment		Acquisi-tion		Disposi-tion		Total		Same Store		Develop-ment		Acquisi-tion		Disposi-tion		Total
	(in thousands)
Operating revenues:
Rental income	$	185,992	$	37,985	$	3,145	$	—	$	227,122	$	190,998	$	19,488	$	—	$	1,835	$	212,321
Other property income	1,040		147		5		—		1,192		2,705		377		—		122		3,204
Total	187,032		38,132		3,150		—		228,314		193,703		19,865		—		1,957		215,525
Property and related expenses:
Property expenses	33,220		5,634		382		—		39,236		37,402		3,298		—		608		41,308
Real estate taxes	17,378		5,974		516		—		23,868		17,060		2,647		—		291		19,998
Ground leases	1,905		—		214		—		2,119		2,049		—		—		—		2,049
Total	52,503		11,608		1,112		—		65,223		56,511		5,945		—		899		63,355
Net Operating Income, as defined	$	134,529	$	26,524	$	2,038	$	—	$	163,091	$	137,192	$	13,920	$	—	$	1,058	$	152,170

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	Three Months Ended September 30, 2020 as compared to the Three Months Ended September 30, 2019
	Same Store					Development					Acquisition				Disposition					Total
	Dollar Change			Percent Change		Dollar Change			Percent Change		Dollar Change		Percent Change		Dollar Change			Percent Change		Dollar Change			Percent Change
	($ in thousands)
Operating revenues:
Rental income	$	(5,006	)	(2.6	)%	$	18,497		94.9	%	$	3,145	100.0	%	$	(1,835	)	(100.0	)%	$	14,801		7.0	%
Other property income	(1,665		)	(61.6	)%	(230		)	(61.0	)%	5		100.0	%	(122		)	(100.0	)%	(2,012		)	(62.8	)%
Total	(6,671		)	(3.4	)%	18,267			92.0	%	3,150		100.0	%	(1,957		)	(100.0	)%	12,789			5.9	%
Property and related expenses:
Property expenses	(4,182		)	(11.2	)%	2,336			70.8	%	382		100.0	%	(608		)	(100.0	)%	(2,072		)	(5.0	)%
Real estate taxes	318			1.9	%	3,327			125.7	%	516		100.0	%	(291		)	(100.0	)%	3,870			19.4	%
Ground leases	(144		)	(7.0	)%	—			—	%	214		100.0	%	—			—	%	70			3.4	%
Total	(4,008		)	(7.1	)%	5,663			95.3	%	1,112		100.0	%	(899		)	(100.0	)%	1,868			2.9	%
Net Operating Income, as defined	$	(2,663	)	(1.9	)%	$	12,604		90.5	%	$	2,038	100.0	%	$	(1,058	)	(100.0	)%	$	10,921		7.2	%

Net Operating Income increased $10.9 million, or 7.2%, for the three months ended September 30, 2020 as compared to the three months ended September 30, 2019 resulting from:

• A decrease in Net Operating Income of $2.7 million attributable to the Same Store Properties which was driven by the following activity:

• A decrease in total operating revenues of $6.7 million primarily due to:

• $7.0 million increase from new leases and renewals at higher rates primarily in the San Francisco Bay Area, Greater Los Angeles, and San Diego County regions; offset by

• $6.9 million decrease related to the impact of COVID-19, comprised of:

• $2.1 million decrease due to charges against rental income due to tenant creditworthiness considerations, tenants on a cash basis of revenue recognition and abatements given due to the COVID-19 pandemic;

• $1.5 million decrease due to lower parking income resulting from a reduction in the number of monthly parking spaces rented as a result of COVID-19 stay-at-home orders;

• $1.6 million decrease due to lower reimbursable operating expenses resulting from COVID-19 stay-at-home orders; and

• $1.7 million decrease in other property income primarily due to lower transient and special event parking income at a number of properties in the San Francisco Bay Area, Greater Seattle and Greater Los Angeles regions. We expect daily, special event and transient parking to be impacted while restrictions intended to prevent the spread of COVID-19 remain in effect;

• $3.1 million decrease due to early lease termination fees received in 2019 for two tenants in the San Francisco Bay Area;

• $2.7 million decrease due to lower occupancy primarily in the Greater Los Angeles and San Diego County regions; and

• $0.9 million decrease in recoveries primarily related to new tenants with 2020 base years and one tenant that received a property tax exemption commencing in July 2020;

• A decrease in property and related expenses of $4.0 million primarily due to the following:

• $3.6 million decrease in reimbursable property expenses including janitorial, utilities, parking, and various other recurring expenses due to several tenants implementing work from home policies due to the COVID-19 pandemic.

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We anticipate lower reimbursable property expenses and corresponding tenant recoveries as a result of lower usage of our buildings by tenants while restrictions intended to prevent the spread of COVID-19 are in effect; and

• $0.3 million decrease primarily due to lower non-reimbursable expenses;

• An increase in Net Operating Income of $12.6 million attributable to the Development Properties driven by one office development project that was added to the stabilized portfolio in the first quarter of 2020 and the commencement of revenue recognition on the first phase of one office development project in June 2020; and

• An increase in Net Operating Income of $2.0 million attributable to the Acquisition Properties; partially offset by

• A decrease in Net Operating Income of $1.1 million attributable to the Disposition Properties.

Other Expenses and Income

General and Administrative Expenses

General and administrative expenses decreased by approximately $4.0 million, or 17.7%, for the three months ended September 30, 2020 compared to the three months ended September 30, 2019 primarily due to:

• A decrease of $4.8 million primarily due to lower compensation accruals and other related cost cutting measures as a result of COVID-19 and severance costs incurred in 2019 related to the departure of two executive officers; and

• A decrease of $1.6 million primarily related to a settlement payment received from a previously disclosed litigation matter; partially offset by

• An increase of $2.4 million primarily related to political contributions for statewide ballot measures.

Leasing Costs

Leasing costs decreased by $0.2 million or 17.3%, for the three months ended September 30, 2020 compared to the three months ended September 30, 2019 primarily due to a lower level of leasing activity during the three months ended September 30, 2020.

Depreciation and Amortization

Depreciation and amortization increased $2.6 million, or 3.8%, for the three months ended September 30, 2020 compared to the three months ended September 30, 2019 primarily due to the following:

• An increase of $5.9 million attributable to the Development Properties; and

• An increase of $2.2 million attributable to the Acquisition Properties; partially offset by

• A decrease of $4.6 million attributable to the Same Store Properties; and

• A decrease of $0.9 million attributable to the Disposition Properties.

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Interest Expense

The following table sets forth our gross interest expense, including debt discounts and deferred financing cost amortization, and capitalized interest, including capitalized debt discounts and deferred financing cost amortization, for the three months ended September 30, 2020 and 2019:

	Three Months Ended September 30,
	2020			2019			Dollar Change		Percentage Change
	(in thousands)
Gross interest expense	$	38,807		$	32,220		$	6,587	20.4	%
Capitalized interest and deferred financing costs	(19,339		)	(20,585		)	1,246		(6.1	)%
Interest expense	$	19,468		$	11,635		$	7,833	67.3	%

Gross interest expense, before the effect of capitalized interest and deferred financing costs, increased $6.6 million, or 20.4%, for the three months ended September 30, 2020 as compared to the three months ended September 30, 2019 primarily due to an increase in the average outstanding debt balance for the three months ended September 30, 2020.

Capitalized interest and deferred financing costs decreased $1.2 million, or 6.1%, for the three months ended September 30, 2020 compared to the three months ended September 30, 2019 primarily due to a decrease in the weighted average interest rate during the three months ended September 30, 2020. During the three months ended September 30, 2020 and 2019, we capitalized interest on in-process development projects and future development pipeline projects with an average aggregate cost basis of approximately $1.9 billion and $2.0 billion, respectively. In the event of an extended cessation of development activities to get any of these projects ready for its intended use, such projects could potentially no longer qualify for capitalization of interest or other carrying costs. However, a cessation of development activities caused by events outside of our control, such as those as a result of government restrictions aimed at stopping the spread of COVID-19, would not impact our ability to capitalize interest and other carrying costs. Refer to “Part II – Other Information, Item IA. Risk Factors” included in this report for additional information about the potential impact of the COVID-19 pandemic, and restrictions intended to prevents its spread, on our business, financial condition, results of operations, cash flows, liquidity and ability to satisfy our debt service obligations and to pay dividends and distributions to security holders.

Net Income Attributable to Noncontrolling Interests in Consolidated Property Partnerships

Net income attributable to noncontrolling interests in consolidated property partnerships increased by $0.7 million or 18.3% for the three months ended September 30, 2020 compared to the three months ended September 30, 2019 primarily due to a new lease at a higher rate at one property held in a property partnership in 2020. The amounts reported for the three months ended September 30, 2020 and 2019 are comprised of the noncontrolling interest’s share of net income for 100 First Street Member, LLC (“100 First LLC”) and 303 Second Street Member, LLC (“303 Second LLC”) and the noncontrolling interest's share of net income for Redwood City Partners, LLC (“Redwood LLC”).

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Comparison of the Nine Months Ended September 30, 2020 to the Nine Months Ended September 30, 2019

The following table summarizes our Net Operating Income, as defined, for our total portfolio for the nine months ended September 30, 2020 and 2019.

	Nine Months Ended September 30,						Dollar Change			Percentage Change
	2020			2019
	($ in thousands)
Reconciliation of Net Income Available to Common Stockholders to Net Operating Income, as defined:
Net Income Available to Common Stockholders	$	108,463		$	122,943		$	(14,480	)	(11.8	)%
Net income attributable to noncontrolling common units of the Operating Partnership	1,857			2,423			(566		)	(23.4	)%
Net income attributable to noncontrolling interests in consolidated property partnerships	13,521			11,941			1,580			13.2	%
Net income	$	123,841		$	137,307		$	(13,466	)	(9.8	)%
Unallocated expense (income):
General and administrative expenses	76,179			65,774			10,405			15.8	%
Leasing Costs	3,772			5,599			(1,827		)	(32.6	)%
Depreciation and amortization	226,318			203,617			22,701			11.1	%
Interest income and other net investment gain	(1,579		)	(3,205		)	1,626			(50.7	)%
Interest expense	49,796			34,605			15,191			43.9	%
Gains on sales of depreciable operating properties	—			(7,169		)	7,169			(100.0	)%
Net Operating Income, as defined	$	478,327		$	436,528		$	41,799		9.6	%

The following tables summarize our Net Operating Income, as defined, for our total portfolio for the nine months ended September 30, 2020 and 2019.

	Nine Months Ended September 30,
	2020										2019
	Same Store		Develop-ment		Acquisi-tion		Disposi-tion		Total		Same Store		Develop-ment		Acquisi-tion		Disposi-tion		Total
	(in thousands)
Operating revenues:
Rental income	$	554,729	$	99,375	$	10,007	$	—	$	664,111	$	565,150	$	36,683	$	—	$	7,499	$	609,332
Other property income	4,142		728		84		—		4,954		6,707		697		—		483		7,887
Total	558,871		100,103		10,091		—		669,065		571,857		37,380		—		7,982		617,219
Property and related expenses:
Property expenses	100,913		14,126		1,009		—		116,048		109,851		5,969		—		2,173		117,993
Real estate taxes	51,838		14,513		1,573		—		67,924		51,237		4,412		—		914		56,563
Ground leases	6,135		—		631		—		6,766		6,135		—		—		—		6,135
Total	158,886		28,639		3,213		—		190,738		167,223		10,381		—		3,087		180,691
Net Operating Income, as defined	$	399,985	$	71,464	$	6,878	$	—	$	478,327	$	404,634	$	26,999	$	—	$	4,895	$	436,528

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	Nine Months Ended September 30, 2020 as compared to the Nine Months Ended September 30, 2019
	Same Store					Development				Acquisition				Disposition					Total
	Dollar Change			Percent Change		Dollar Change		Percent Change		Dollar Change		Percent Change		Dollar Change			Percent Change		Dollar Change			Percent Change
	($ in thousands)
Operating revenues:
Rental income	$	(10,421	)	(1.8	)%	$	62,692	170.9	%	$	10,007	100.0	%	$	(7,499	)	(100.0	)%	$	54,779		9.0	%
Other property income	(2,565		)	(38.2	)%	31		4.4	%	84		100.0	%	(483		)	(100.0	)%	(2,933		)	(37.2	)%
Total	(12,986		)	(2.3	)%	62,723		167.8	%	10,091		100.0	%	(7,982		)	(100.0	)%	51,846			8.4	%
Property and related expenses:
Property expenses	(8,938		)	(8.1	)%	8,157		136.7	%	1,009		100.0	%	(2,173		)	(100.0	)%	(1,945		)	(1.6	)%
Real estate taxes	601			1.2	%	10,101		228.9	%	1,573		100.0	%	(914		)	(100.0	)%	11,361			20.1	%
Ground leases	—			—	%	—		—	%	631		100.0	%	—			—	%	631			10.3	%
Total	(8,337		)	(5.0	)%	18,258		175.9	%	3,213		100.0	%	(3,087		)	(100.0	)%	10,047			5.6	%
Net Operating Income, as defined	$	(4,649	)	(1.1	)%	$	44,465	164.7	%	$	6,878	100.0	%	$	(4,895	)	(100.0	)%	$	41,799		9.6	%

Net Operating Income increased $41.8 million, or 9.6%, for the nine months ended September 30, 2020 as compared to the nine months ended September 30, 2019 primarily resulting from:

• A decrease of $4.6 million attributable to the Same Store Properties primarily resulting from:

• A decrease in total operating revenues of $13.0 million primarily due to:

• $24.8 million increase from new leases and renewals at higher rates at various properties across the portfolio; offset by

• $18.8 million decrease due to the impact of COVID-19, comprised of:

• $11.8 million decrease primarily due to charges against rental income due to tenant creditworthiness considerations and abatements provided to tenants as a result of the COVID-19 pandemic;

• $2.5 million decrease due to lower parking income resulting from a reduction in the number of monthly parking spaces rented as a result of COVID-19 stay-at-home orders;

• $1.9 million decrease due to lower reimbursable operating expenses as a result of the COVID-19 pandemic; and

• $2.6 million decrease in other property income primarily due to lower transient and special event parking income at a number of properties in the San Francisco Bay Area, Greater Seattle and Greater Los Angeles regions. We expect daily, special event and transient parking to be impacted while restrictions intended to prevent the spread of COVID-19 are in effect;

• $9.3 million decrease primarily due to early lease termination fees received in 2019 for two tenants in the San Francisco Bay Area;

• $4.2 million net decrease primarily related to the improved credit quality of a tenant in 2019 for which the Company recorded a bad debt reserve in 2018;

• $2.8 million decrease due to lower occupancy primarily in the Greater Los Angeles and San Diego County regions; and

• $2.5 million decrease in the tenant reimbursement component of rental income due to a tenant in the San Francisco Bay Area’s change from a triple net lease to a modified net lease, resulting in payment of expenses directly to vendors, and new tenants with 2020 base years;

46

• A decrease in property and related expenses of $8.3 million primarily due to a decrease in reimbursable expenses such as utilities, parking, janitorial, security, and various other recurring expenses due to several tenants implementing work from home policies due to the COVID-19 pandemic. We anticipate lower reimbursable property expenses and corresponding tenant recoveries as a result of lower usage of our buildings by tenants in while restrictions intended to prevent the spread of COVID-19 are in effect;

• An increase of $44.5 million attributable to the Development Properties driven by one office development project that was added to the stabilized portfolio in the first quarter of 2020 and the commencement of revenue recognition on the first phase of one office development project in June of 2020; and

• An increase of $6.9 million attributable to the Acquisition Properties; partially offset by

• A decrease of $4.9 million attributable to the Disposition Properties.

Other Expenses and Income

General and Administrative Expenses

General and administrative expenses increased $10.4 million, or 15.8%, for the nine months ended September 30, 2020 compared to the nine months ended September 30, 2019 primarily due to the following:

• An increase of $10.3 million primarily due to increased severance costs related to the departure of an executive officer and certain other employees, net of severance costs associated with departures of executive officers in 2019, lower compensation accruals and other related cost-cutting measures as a results of COVID-19; and

• An increase of $2.4 million primarily due to political contributions for statewide ballot measures; partially offset by

• A decrease of $2.3 million primarily due to the settlement of a previously disclosed litigation matter.

Leasing Costs

Leasing costs decreased by $1.8 million or 32.6%, for the nine months ended September 30, 2020 compared to the nine months ended September 30, 2019 primarily due to a lower level of leasing activity during the nine months ended September 30, 2020.

Depreciation and Amortization

Depreciation and amortization increased $22.7 million, or 11.1%, for the nine months ended September 30, 2020 compared to the nine months ended September 30, 2019 primarily due to the following:

• An increase of $22.7 million attributable to the Development Properties; and

• An increase of $7.1 million attributable to the Acquisition Properties; partially offset by

• A decrease of $4.0 million attributable to the Same Store Properties; and

• A decrease of $3.1 million attributable to the Disposition Properties.

47

Interest Expense

The following table sets forth our gross interest expense, including debt discounts/premiums and deferred financing cost amortization, and capitalized interest, including capitalized debt discounts/premiums and deferred financing cost amortization for the nine months ended September 30, 2020 and 2019:

	Nine Months Ended September 30,
	2020			2019			Dollar Change			Percentage Change
	(in thousands)
Gross interest expense	$	111,069		$	95,507		$	15,562		16.3	%
Capitalized interest and deferred financing costs	(61,273		)	(60,902		)	(371		)	0.6	%
Interest expense	$	49,796		$	34,605		$	15,191		43.9	%

Gross interest expense, before the effect of capitalized interest and deferred financing costs, increased $15.6 million or 16.3% for the nine months ended September 30, 2020 as compared to the nine months ended September 30, 2019 primarily due to an increase in our average debt balance for the nine months ended September 30, 2020.

Capitalized interest and deferred financing costs increased $0.4 million or 0.6%, for the nine months ended September 30, 2020 compared to the nine months ended September 30, 2019 primarily due to an increase in the average development asset balances qualifying for interest capitalization for the nine months ended September 30, 2020. During the nine months ended September 30, 2020 and 2019, we capitalized interest on in-process development projects and future development pipeline projects with an average aggregate cost basis of approximately $2.1 billion and $1.9 billion, respectively.

Net Income Attributable to Noncontrolling Interests in Consolidated Property Partnerships

Net income attributable to noncontrolling interests in consolidated property partnerships increased $1.6 million or 13.2% for the nine months ended September 30, 2020 compared to the nine months ended September 30, 2019 primarily due to a new lease at a higher rate at one property held in a property partnership in 2020. The amounts reported for the nine months ended September 30, 2020 and 2019 are comprised of the noncontrolling interest’s share of net income for 100 First Street Member, LLC (“100 First LLC”), 303 Second Street Member (“303 Second LLC”) and Redwood City Partners, LLC (“Redwood LLC”).

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Liquidity and Capital Resources of the Company

In this “Liquidity and Capital Resources of the Company” section, the term the “Company” refers only to Kilroy Realty Corporation on an unconsolidated basis and excludes the Operating Partnership and all other subsidiaries.

The Company’s business is operated primarily through the Operating Partnership. Distributions from the Operating Partnership are the Company’s primary source of capital. The Company believes the Operating Partnership’s sources of working capital, specifically its cash flow from operations and borrowings available under its unsecured revolving credit facility and funds from its capital recycling program, including strategic ventures, are adequate for it to make its distribution payments to the Company and, in turn, for the Company to make its dividend payments to its common stockholders for the next twelve months. Cash flows from operating activities generated by the Operating Partnership for the nine months ended September 30, 2020 were sufficient to cover the Company’s payment of cash dividends to its stockholders. However, there can be no assurance that the Operating Partnership’s sources of capital will continue to be available at all or in amounts sufficient to meet its needs, including its ability to make distributions to the Company. The unavailability of capital could adversely affect the Operating Partnership’s ability to make distributions to the Company, which would in turn, adversely affect the Company’s ability to pay cash dividends to its stockholders.

The Company is a well-known seasoned issuer and the Company and the Operating Partnership have an effective shelf registration statement that provides for the public offering and sale from time to time by the Company of its preferred stock, common stock, depositary shares, warrants and guarantees of debt securities and by the Operating Partnership of its debt securities, in each case in unlimited amounts. The Company evaluates the capital markets on an ongoing basis for opportunities to raise capital, and, as circumstances warrant, the Company and the Operating Partnership may issue securities of all of these types in one or more offerings at any time and from time to time on an opportunistic basis, depending upon, among other things, market conditions, available pricing and capital needs. When the Company receives proceeds from the sales of its preferred or common stock, it generally contributes the net proceeds from those sales to the Operating Partnership in exchange for corresponding preferred or common partnership units of the Operating Partnership. The Operating Partnership may use these proceeds and proceeds from the sale of its debt securities to repay debt, including borrowings under its unsecured revolving credit facility, to develop new or existing properties, to make acquisitions of properties or portfolios of properties, or for general corporate purposes.

As the sole general partner with control of the Operating Partnership, the Company consolidates the Operating Partnership for financial reporting purposes, and the Company does not have significant assets other than its investment in the Operating Partnership. Therefore, the assets and liabilities and the revenues and expenses of the Company and the Operating Partnership are substantially the same on their respective financial statements. The section entitled “Liquidity and Capital Resources of the Operating Partnership” should be read in conjunction with this section to understand the liquidity and capital resources of the Company on a consolidated basis and how the Company is operated as a whole.

COVID-19 Liquidity Highlights

As of the date of this report, we have no material debt maturities prior to July 2022, at which time our revolving credit facility matures. As of October 27, 2020, we had approximately $685.0 million in cash and cash equivalents, with an additional $750.0 million available under our unsecured revolving credit facility, as a result of settling various forward equity sale agreements and the completion of a private placement of $350.0 million in unsecured senior notes and a public offering of $425.0 million in green unsecured senior notes during the nine months ended September 30, 2020. We believe that this available liquidity makes us well positioned to navigate uncertainty resulting from the COVID-19 pandemic. In addition, as discussed above, the Company is a well-known seasoned issuer and has historically been able to raise capital on a timely basis in the public markets, as well as the private markets, as demonstrated by the transactions listed above. Any future financings, however, will depend on market conditions for capital raises and for the investment of any proceeds and there can be no assurances that we will successfully obtain such financings.

Distribution Requirements

The Company is required to distribute 90% of its taxable income (subject to certain adjustments and excluding net capital gains) on an annual basis to maintain qualification as a REIT for federal income tax purposes and is required to pay income tax at regular corporate rates to the extent it distributes less than 100% of its taxable income (including capital gains). As a result of these distribution requirements, the Operating Partnership cannot rely on retained earnings to fund its on-going operations to the same extent as other companies whose parent companies are not REITs. In addition, the Company may be required to use borrowings under the Operating Partnership’s revolving credit facility, if necessary, to meet REIT distribution requirements and maintain its

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REIT status. The Company may also need to continue to raise capital in the equity markets to fund the Operating Partnership’s working capital needs, as well as potential developments of new or existing properties or acquisitions.

The Company intends to continue to make, but has not committed to make, regular quarterly cash distributions to common stockholders, and through the Operating Partnership, to common unitholders from the Operating Partnership’s cash flow from operating activities. All such distributions are at the discretion of the Board of Directors. As the Company intends to maintain distributions at a level sufficient to meet the REIT distribution requirements and minimize its obligation to pay income and excise taxes, it will continue to evaluate whether the current levels of distribution are appropriate to do so throughout 2020. In addition, in the event the Company is unable to identify and complete the acquisition of suitable replacement properties to effect Section 1031 Exchanges or is unable to successfully complete Section 1031 Exchanges to defer some or all of the taxable gains related to property dispositions as a result of the COVID-19 pandemic or any other reason, the Company may elect to distribute a special dividend to its common stockholders and common unitholders in order to minimize or eliminate income taxes on such gains. The Company considers market factors and its performance in addition to REIT requirements in determining its distribution levels. Amounts accumulated for distribution to stockholders are invested primarily in interest-bearing accounts and short-term interest-bearing securities, which is consistent with the Company’s intention to maintain its qualification as a REIT. Such investments may include, for example, obligations of the Government National Mortgage Association, other governmental agency securities, certificates of deposit, and interest-bearing bank deposits.

On August 26, 2020, the Board of Directors declared a regular quarterly cash dividend of $0.50, an increase of 3.1% from the prior regular quarterly cash dividend of $0.485 per share of common stock. The regular quarterly cash dividend is payable to stockholders of record on September 30, 2020 and a corresponding cash distribution of $0.50 per Operating Partnership unit is payable to holders of the Operating Partnership’s common limited partnership interests of record on September 30, 2020, including those owned by the Company. The total cash quarterly dividends and distributions paid on October 14, 2020 were $58.6 million.

Debt Covenants

The covenants contained within certain of our unsecured debt obligations generally prohibit the Company from paying dividends during an event of default in excess of an amount which results in distributions to us in an amount sufficient to permit us to pay dividends to our stockholders that we reasonably believe are necessary to (a) maintain our qualification as a REIT for federal and state income tax purposes and (b) avoid the payment of federal or state income or excise tax.

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Capitalization

As of September 30, 2020, our total debt as a percentage of total market capitalization was 39.4%, which was calculated based on the closing price per share of the Company’s common stock of $51.96 on September 30, 2020 as shown in the following table:

	Shares/Units at  September 30, 2020	Aggregate Principal Amount or $ Value Equivalent		% of Total Market Capitalization
	($ in thousands)
Debt: (1)(2)
Unsecured Senior Notes due 2023		$	300,000	3.0	%
Unsecured Senior Notes due 2024		425,000		4.2	%
Unsecured Senior Notes due 2025		400,000		4.0	%
Unsecured Senior Notes Series A & B due 2026		250,000		2.5	%
Unsecured Senior Notes due 2028		400,000		4.0	%
Unsecured Senior Notes due 2029		400,000		4.0	%
Unsecured Senior Notes Series A & B due 2027 & 2029		250,000		2.5	%
Unsecured Senior Notes due 2030		500,000		5.0	%
Unsecured Senior Notes due 2031		350,000		3.5	%
Unsecured Senior Notes due 2032		425,000		4.2	%
Secured debt		255,668		2.5	%
Total debt		$	3,955,668	39.4	%
Equity and Noncontrolling Interests in the Operating Partnership: (3)
Common limited partnership units outstanding (4)	1,931,574	$	100,365	1.0	%
Shares of common stock outstanding	115,247,221	5,988,246		59.6	%
Total Equity and Noncontrolling Interests in the Operating Partnership		$	6,088,611	60.6	%
Total Market Capitalization		$	10,044,279	100.0	%

________________________ 

(1) Represents gross aggregate principal amount due at maturity before the effect of the following at September 30, 2020: $23.3 million of unamortized deferred financing costs on the unsecured senior notes and secured debt and $8.5 million of unamortized discounts for the unsecured senior notes.

(2) As of September 30, 2020, there was no outstanding balance on the unsecured revolving credit facility. During the three months ended September 30, 2020, we fully repaid the $150.0 million unsecured term loan facility.

(3) Value based on closing price per share of our common stock of $51.96 as of September 30, 2020.

(4) Includes common units of the Operating Partnership not owned by the Company; does not include noncontrolling interests in consolidated property partnerships.

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Liquidity and Capital Resources of the Operating Partnership

In this “Liquidity and Capital Resources of the Operating Partnership” section, the terms “we,” “our,” and “us” refer to the Operating Partnership or the Operating Partnership and the Company together, as the context requires.

General

Our primary liquidity sources and uses are as follows:

Liquidity Sources

• Net cash flow from operations;

• Borrowings under the Operating Partnership’s unsecured revolving credit facility and term loan facility;

• Proceeds from our capital recycling program, including the disposition of assets and the formation of strategic ventures;

• Proceeds from additional secured or unsecured debt financings; and

• Proceeds from public or private issuance of debt, equity or preferred equity securities.

Liquidity Uses

• Development and redevelopment costs;

• Operating property or undeveloped land acquisitions;

• Property operating and corporate expenses;

• Capital expenditures, tenant improvement and leasing costs;

• Debt service and principal payments, including debt maturities;

• Distributions to common security holders;

• Repurchases and redemptions of outstanding common stock of the Company; and

• Outstanding debt repurchases, redemptions and repayments.

General Strategy

Our general strategy is to maintain a conservative balance sheet with a strong credit profile and to maintain a capital structure that allows for financial flexibility and diversification of capital resources. We manage our capital structure to reflect a long-term investment approach and utilize multiple sources of capital to meet our long-term capital requirements. We believe that our current projected liquidity requirements for the next twelve-month period, as set forth above under the caption “—Liquidity Uses,” will be satisfied using a combination of the liquidity sources listed above, although there can be no assurance in this regard. We believe our conservative leverage and staggered debt maturities provide us with financial flexibility and enhance our ability to obtain additional sources of liquidity if necessary, and, therefore, we are well-positioned to refinance or repay maturing debt and to pursue our strategy of seeking attractive acquisition opportunities, which we may finance, as necessary, with future public and private issuances of debt and equity securities.

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Liquidity Sources

Unsecured Revolving Credit Facility and Term Loan Facility

The following table summarizes the balance and terms of our unsecured revolving credit facility as of September 30, 2020 and December 31, 2019:

	September 30, 2020			December 31, 2019
	(in thousands)
Outstanding borrowings	$	—		$	245,000
Remaining borrowing capacity	750,000			505,000
Total borrowing capacity (1)	$	750,000		$	750,000
Interest rate (2)	1.15		%	2.76		%
Facility fee-annual rate (3)	0.200%
Maturity date	July 2022

________________________

(1) We may elect to borrow, subject to bank approval and obtaining commitments for any additional borrowing capacity, up to an additional $600.0 million under an accordion feature under the terms of the unsecured revolving credit facility and unsecured term loan facility.

(2) Our unsecured revolving credit facility interest rate was calculated based the contractual rate of LIBOR plus 1.000% as of September 30, 2020 and December 31, 2019.

(3) Our facility fee is paid on a quarterly basis and is calculated based on the total borrowing capacity. In addition to the facility fee, we incurred debt origination and legal costs. As of September 30, 2020 and December 31, 2019, $2.4 million and $3.4 million of unamortized deferred financing costs, respectively, which are included in prepaid expenses and other assets, net on our consolidated balance sheets, remained to be amortized through the maturity date of our unsecured revolving credit facility.

We intend to borrow under the unsecured revolving credit facility as necessary for general corporate purposes, to finance development and redevelopment expenditures, to fund potential acquisitions and to potentially repay long-term debt to supplement cash balances given uncertainties and volatility in market conditions.

In August 2020, the Company repaid in full the $150.0 million unsecured term loan facility. The following table summarizes the balance and terms of our unsecured term loan facility as of December 31, 2019:

	December 31, 2019
Outstanding borrowings	$	150,000
Remaining borrowing capacity	—
Total borrowing capacity (1)	$	150,000
Interest rate (2)	2.85		%
Undrawn facility fee-annual rate	0.200		%
Maturity date	July 2022

________________________

(1) As of December 31, 2019, $0.7 million of unamortized deferred financing costs remained to be amortized through the maturity date of our unsecured term loan facility.

(2) Our unsecured term loan facility interest rate was calculated based on the contractual rate of LIBOR plus 1.100% as of December 31, 2019.

Capital Recycling Program

As discussed in the section “Factors That May Influence Future Results of Operations - Capital Recycling Program,” we continuously evaluate opportunities for the potential disposition of properties and undeveloped land in our portfolio or the formation of strategic ventures with the intent of recycling the proceeds generated from the disposition of less strategic or core assets into capital used to finance development expenditures, to fund new acquisitions, to repay long-term debt and for other general corporate purposes. As part of this strategy, we attempt to enter into Section 1031 Exchanges, when possible, to defer some or all of the taxable gains on the sales, if any, for federal and state income tax purposes.

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We currently anticipate that, for the remainder of 2020, we could raise additional capital of approximately $75.0 million through our dispositions program. Any potential future disposition transactions and the timing of any potential future capital recycling transactions will depend on market conditions and other factors, including but not limited to our capital needs, the availability of financing for potential buyers (which has been and may continue to be constrained for some potential buyers due to the ongoing COVID-19 pandemic’s impact on economic and market conditions, including the financial markets), and our ability to defer some or all of the taxable gains on the sales. In addition, we cannot assure you that we will dispose of any additional properties, or that we will be able to identify and complete the acquisitions of suitable replacement properties to effect Section 1031 Exchanges to defer some or all of the taxable gains related to our capital recycling program. In the event we are unable to complete dispositions as planned, we may raise capital through other sources of liquidity including our available unsecured revolving credit facility or the public or private issuance of unsecured debt.

Forward Equity Offering and Settlement

On February 18, 2020, the Company entered into forward equity sale agreements with certain financial institutions acting as forward purchasers in connection with an offering of 5,750,000 shares of common stock at an initial gross offering price of $494.5 million, or $86.00 per share, before underwriting discounts, commissions and offering expenses. The forward purchasers borrowed and sold an aggregate of 5,750,000 shares of common stock in the offering.

On March 25, 2020, the Company physically settled these forward equity sale agreements. Upon settlement, the Company issued 5,750,000 shares of common stock for net proceeds of $474.9 million and contributed the net proceeds to the Operating Partnership in exchange for an equal number of units in the Operating Partnership.

At-The-Market Stock Offering Program

Under our current at-the-market stock offering program, which commenced June 2018, we may offer and sell shares of our common stock with an aggregate gross sales price of up to $500.0 million from time to time in “at-the-market” offerings. In connection with the at-the-market program, the Company may enter into forward equity sale agreements with certain financial institutions acting as forward purchasers whereby, at our discretion, the forward purchasers may borrow and sell shares of our common stock under our at-the-market program. The use of a forward equity sale agreement allows the Company to lock in a share price on the sale of shares of our common stock at the time the agreement is executed but defer settling the forward equity sale agreements and receiving the proceeds from the sale of shares until a later date.

During the year ended December 31, 2019, we executed various 12-month forward equity sale agreements under our at-the-market program with financial institutions acting as forward purchasers to sell an aggregate of 3,147,110 shares of common stock at a weighted average sales price of $80.08 per share before underwriting discounts, commissions and offering expenses.

In March 2020, we physically settled all forward equity sale agreements entered into in 2019. Upon settlement, the Company issued 3,147,110 shares of common stock for net proceeds of $247.3 million and contributed the net proceeds to the Operating Partnership in exchange for an equal number of units in the Operating Partnership. We did not enter into any forward equity sale agreements under our at-the-market program during the nine months ended September 30, 2020.

Since commencement of our current at-the-market program, we have completed sales of 3,594,576 shares of common stock through September 30, 2020. As of September 30, 2020, we may offer and sell shares of our common stock having an aggregate gross sales price up to approximately $214.2 million under our current at-the-market program.

The Company did not complete any direct sales of common stock under the program during the three or nine months ended September 30, 2020. The following table sets forth information regarding settlements of forward equity sale agreements under our at-the-market offering program for the nine months ended September 30, 2020:

	Nine Months Ended September 30, 2020
	(in millions, except share and per share data)
Shares of common stock settled during the period	3,147,110
Weighted average price per share of common stock	$	80.08
Aggregate gross proceeds	$	252.0
Aggregate net proceeds after selling commissions	$	247.3

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The proceeds from sales will be used to fund development expenditures and general corporate purposes. Actual future sales will depend upon a variety of factors, including but not limited to, market conditions, the trading price of the Company’s common stock and our capital needs. We have no obligation to sell the remaining shares available for sale under this program.

Shelf Registration Statement

The Company is a well-known seasoned issuer and the Company and the Operating Partnership have an effective shelf registration statement that provides for the public offering and sale from time to time by the Company of its preferred stock, common stock, depository shares and guarantees of debt securities and by the Operating Partnership of its debt securities, in each case in unlimited amounts. The Company evaluates the capital markets on an ongoing basis for opportunities to raise capital, and, as circumstances warrant, the Company and the Operating Partnership may issue securities of all of these types in one or more offerings at any time and from time to time on an opportunistic basis, depending upon, among other things, market conditions, available pricing and capital needs. During the nine months ended September 30, 2020, the Company’s stock price ranged from $49.01 to $88.28, an 80% swing, as a result of COVID-19 and the resultant impact on the capital markets and economy. If current conditions continue for an extended period of time, capital raising could be more challenging than under conditions prior to COVID-19. When the Company receives proceeds from the sales of its preferred or common stock, it generally contributes the net proceeds from those sales to the Operating Partnership in exchange for corresponding preferred or common partnership units of the Operating Partnership. The Operating Partnership may use these proceeds and proceeds from the sale of its debt securities to repay debt, including borrowings under its unsecured revolving credit facility, to develop new or existing properties, to make acquisitions of properties or portfolios of properties, or for general corporate purposes.

Unsecured and Secured Debt

The aggregate principal amount of the unsecured and secured debt of the Operating Partnership outstanding as of September 30, 2020 was as follows:

	Aggregate Principal  Amount Outstanding
	(in thousands)
Unsecured Senior Notes due 2023	$	300,000
Unsecured Senior Notes due 2024	425,000
Unsecured Senior Notes due 2025	400,000
Unsecured Senior Notes Series A & B due 2026	250,000
Unsecured Senior Notes due 2028	400,000
Unsecured Senior Notes due 2029	400,000
Unsecured Senior Notes Series A & B due 2027 & 2029	250,000
Unsecured Senior Notes due 2030	500,000
Unsecured Senior Notes due 2031	350,000
Unsecured Senior Notes due 2032	425,000
Secured Debt	255,668
Total Unsecured and Secured Debt (1)	3,955,668
Less: Unamortized Net Discounts and Deferred Financing Costs (2)	(31,838		)
Total Debt, Net	$	3,923,830

________________________ 

(1) As of September 30, 2020, there was no outstanding balance on the unsecured revolving credit facility. During the three months ended September 30, 2020, we fully repaid the $150.0 million unsecured term loan facility.

(2) Includes $23.3 million of unamortized deferred financing costs on the unsecured senior notes and secured debt and $8.5 million of unamortized discounts for the unsecured senior notes. Excludes unamortized deferred financing costs on the unsecured revolving credit facility, which are included in prepaid expenses and other assets, net on our consolidated balance sheets.

Unsecured Senior Notes - Registered Offering

In August 2020, the Operating Partnership issued $425.0 million aggregate principal amount of green unsecured senior notes in a registered public offering. The outstanding balance of the unsecured senior notes is included in unsecured debt, net of an initial issuance discount of $2.7 million, on our consolidated balance sheets. The unsecured senior notes, which are scheduled to mature on November 15, 2032, require semi-annual interest payments each May and November based on a stated annual interest rate of 2.500%. The Operating Partnership may redeem the notes at any time prior to August 15, 2032, either in whole or in part, subject to the payment of an early redemption premium prior to a par call option period commencing three months prior to maturity.

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Unsecured Senior Notes - Private Placement

On April 28, 2020, the Operating Partnership entered into a Note Purchase Agreement in connection with the issuance and sale of $350.0 million principal amount of the Operating Partnership's 4.27% Senior Notes due January 31, 2031 (the “Notes”), pursuant to a private placement. The Notes mature on their due date, unless earlier redeemed or prepaid pursuant to the terms of the Note Purchase Agreement. Interest on the Notes is payable semi-annually in arrears on April 18 and October 18 of each year beginning October 18, 2020.

Debt Composition

The composition of the Operating Partnership’s aggregate debt balances between secured and unsecured and fixed-rate and variable-rate debt as of September 30, 2020 and December 31, 2019 was as follows:

	Percentage of Total Debt (1)				Weighted Average Interest Rate (1)
	September 30, 2020 (2)		December 31, 2019		September 30, 2020 (2)		December 31, 2019
Secured vs. unsecured:
Unsecured	93.5	%	92.8	%	3.8	%	3.8	%
Secured	6.5	%	7.2	%	3.9	%	3.9	%
Variable-rate vs. fixed-rate:
Variable-rate	—	%	11.0	%	—	%	2.8	%
Fixed-rate (3)	100.0	%	89.0	%	3.8	%	3.9	%
Stated rate (3)					3.8	%	3.8	%
GAAP effective rate (4)					3.8	%	3.8	%
GAAP effective rate including debt issuance costs					4.1	%	4.0	%

________________________

(1) As of the end of the period presented.

(2) As of September 30, 2020, there was no outstanding balance on the unsecured revolving credit facility. During the three months ended September 30, 2020, we fully repaid the $150.0 million unsecured term loan facility.

(3) Excludes the impact of the amortization of any debt discounts/premiums and deferred financing costs.

(4) Includes the impact of the amortization of any debt discounts/premiums, excluding deferred financing costs.

Liquidity Uses

Contractual Obligations

Refer to our 2019 Annual Report on Form 10-K for a discussion of our contractual obligations. There have been no material changes, outside of the ordinary course of business, to these contractual obligations during the nine months ended September 30, 2020.

Other Liquidity Uses

Development

As of September 30, 2020, we had three development projects under construction.  These projects have a total estimated investment of approximately $910.0 million of which we have incurred approximately $539.9 million and committed an additional $366.0 million as of September 30, 2020, of which $40.0 million is currently expected to be spent through the end of 2020. In addition, as of September 30, 2020, we had four development projects in the tenant improvement phase. These projects have a total estimated investment of approximately $1.03 billion, of which we have incurred approximately $850.0 million, net of retention, and committed an additional $175.0 million as of September 30, 2020, of which $64.0 million is currently expected to be spent through the end of 2020. We also had two stabilized development projects with a total estimated investment of $860.0 million, of which $7.0 million remains to be spent as of September 30, 2020, and is expected to be spent through the end of 2020.  Ultimate timing of these expenditures may fluctuate given construction progress and leasing status of the projects. Additionally, the COVID-19 pandemic, and restrictions intended to prevent its spread, could cause delays or increase costs associated with building materials or construction services necessary for construction in the future, which could adversely impact our ability to continue or complete construction as planned, on budget or at all, and may delay the start of construction on our future development pipeline projects. We expect that any material additional development activities will be funded with borrowings under the unsecured revolving credit facility, the public or private issuance of debt or equity securities, the disposition of assets under our capital recycling program, or strategic venture opportunities.

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Debt Maturities

We believe our conservative leverage and staggered debt maturities provide us with financial flexibility and enhance our ability to obtain additional sources of liquidity if necessary, and, therefore, we believe we are well-positioned to refinance or repay maturing debt and to pursue our strategy of seeking attractive acquisition opportunities, which we may finance, as necessary, with future public and private issuances of debt and equity securities. However, we can provide no assurance that we will have access to the public or private debt or equity markets in the future on favorable terms or at all. Refer to “Part II – Other Information, Item IA. Risk Factors” included in this report for additional information about the potential impact of the COVID-19 pandemic, and restrictions intended to prevents its spread, on our business, financial condition, results of operations, cash flows, liquidity and ability to satisfy our debt service obligations and to pay dividends and distributions to security holders. Our next debt maturity occurs in July 2022 and relates to our unsecured revolving credit facility, under which we currently do not have any amounts borrowed.

Potential Future Acquisitions

As discussed in the section “Factors That May Influence Future Results of Operations - Acquisitions,” we continue to evaluate strategic opportunities and remain a disciplined buyer of development and redevelopment opportunities as well as value-add operating properties, dependent on market conditions and business cycles, among other factors.  We focus on growth opportunities in West Coast markets populated by knowledge and creative based tenants in a variety of industries, including technology, media, healthcare, life sciences, entertainment and professional services.  Any material acquisitions will be funded with borrowings under the unsecured revolving credit facility, the public or private issuance of debt or equity securities, the disposition of assets under our capital recycling program, the formation of strategic ventures or through the assumption of existing debt.

We cannot provide assurance that we will enter into any agreements to acquire properties, or undeveloped land, or that the potential acquisitions contemplated by any agreements we may enter into in the future will be completed.

Share Repurchases

As of September 30, 2020, 4,935,826 shares remained eligible for repurchase under a share repurchase program approved by the Company's board of directors in 2016. Under this program, repurchases may be made in open market transactions at prevailing prices or through privately negotiated transactions. We may elect to repurchase shares of our common stock under this program in the future depending upon various factors, including market conditions, the trading price of our common stock and our other uses of capital. This program does not have a termination date and repurchases may be discontinued at any time. We intend to fund repurchases, if any, primarily with the proceeds from property dispositions.

Other Potential Future Liquidity Uses

The amounts we incur for tenant improvements and leasing costs depend on leasing activity in each period. Tenant improvements and leasing costs generally fluctuate in any given period depending on factors such as the type and condition of the property, the term of the lease, the type of the lease, the involvement of external leasing agents, and overall market conditions. Capital expenditures may fluctuate in any given period subject to the nature, extent and timing of improvements required to maintain our properties. As a result of the COVID-19 pandemic, we believe that for the remainder of 2020, we will likely reduce capital spending as a result of deferring non-essential capital projects at either our or our tenant’s election, and that there may be a reduction in leasing activity when compared to the full year of 2019.

Factors That May Influence Future Sources of Capital and Liquidity of the Company and the Operating Partnership

We continue to evaluate sources of financing for our business activities, including borrowings under the unsecured revolving credit facility, issuance of public and private equity securities, unsecured debt and fixed-rate secured mortgage financing, proceeds from the disposition of selective assets through our capital recycling program, and the formation of strategic ventures. However, our ability to obtain new financing or refinance existing borrowings on favorable terms could be impacted by various factors, including the state of the macro economy, the state of the credit and equity markets, significant tenant defaults, a decline in the demand for office properties, a decrease in market rental rates or market values of real estate assets in our submarkets, the amount of our future borrowings and the impact of the COVID-19 pandemic, and restrictions intended to prevents its spread, on capital and credit markets and our tenants (refer to “Part II – Other Information, Item IA. Risk Factors” of this report for additional information). These events could result in the following:

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• Decreases in our cash flows from operations, which could create further dependence on the unsecured revolving credit facility;

• An increase in the proportion of variable-rate debt, which could increase our sensitivity to interest rate fluctuations in the future; and

• A decrease in the value of our properties, which could have an adverse effect on the Operating Partnership’s ability to incur additional debt, refinance existing debt at competitive rates, or comply with its existing debt obligations.

In addition to the factors noted above, the Operating Partnership’s credit ratings are subject to ongoing evaluation by credit rating agencies and may be changed or withdrawn by a rating agency in the future if, in its judgment, circumstances warrant. In the event that the Operating Partnership’s credit ratings are downgraded, we may incur higher borrowing costs and may experience difficulty in obtaining additional financing or refinancing existing indebtedness.

Debt Covenants

The unsecured revolving credit facility, unsecured term loan facility, unsecured term loan, unsecured senior notes, and certain other secured debt arrangements contain covenants and restrictions requiring us to meet certain financial ratios and reporting requirements. Key existing financial covenants and their covenant levels include:

Unsecured Credit Facility and Private Placement Notes (as defined in the applicable Credit Agreements):	Covenant Level	Actual Performance as of September 30, 2020
Total debt to total asset value	less than 60%	30%
Fixed charge coverage ratio	greater than 1.5x	3.3x
Unsecured debt ratio	greater than 1.67x	3.15x
Unencumbered asset pool debt service coverage	greater than 1.75x	4.04x
Unsecured Senior Notes due 2023, 2024, 2025, 2028, 2029, 2030 and 2032 (as defined in the applicable Indentures):
Total debt to total asset value	less than 60%	35%
Interest coverage	greater than 1.5x	8.8x
Secured debt to total asset value	less than 40%	2%
Unencumbered asset pool value to unsecured debt	greater than 150%	295%

The Operating Partnership was in compliance with all of its debt covenants as of September 30, 2020. Our current expectation is that the Operating Partnership will continue to meet the requirements of its debt covenants in both the short and long term. In response to the COVID-19 pandemic, we have completed stress testing of our various financial covenants assuming decreases in rental income and determined that the Operating Partnership has adequate cushion between actual performance and debt covenant levels. However, in the event of an economic slowdown or continued volatility in the credit markets, there is no certainty that the Operating Partnership will be able to continue to satisfy all the covenant requirements.

Consolidated Historical Cash Flow Summary

The following summary discussion of our consolidated historical cash flow is based on the consolidated statements of cash flows in Item 1. “Financial Statements” and is not meant to be an all-inclusive discussion of the changes in our cash flow for the periods presented below. Changes in our cash flow include changes in cash and cash equivalents and restricted cash. Our historical cash flow activity for the nine months ended September 30, 2020 as compared to the nine months ended September 30, 2019 is as follows:

	Nine Months Ended September 30,
	2020			2019			Dollar Change		Percentage Change
	($ in thousands)
Net cash provided by operating activities	$	363,980		$	301,390		$	62,590	20.8	%
Net cash used in investing activities	(475,701		)	(727,184		)	251,483		34.6	%
Net cash provided by financing activities	900,686			558,680			342,006		61.2	%
Net increase in cash and cash equivalents	$	788,965		$	132,886		$	656,079	493.7	%

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Operating Activities

Our cash flows from operating activities depends on numerous factors including the occupancy level of our portfolio, the rental rates achieved on our leases, the collectability of rent and recoveries from our tenants, the level of operating expenses, the impact of property acquisitions, completed development projects and related financing activities, and other general and administrative costs. Our net cash provided by operating activities increased by $62.6 million, or 20.8%, for the nine months ended September 30, 2020 compared to the nine months ended September 30, 2019 primarily as a result of net changes in other assets related to the timing of expenditures and net cash flow from operations of development properties that became stabilized during the nine months ended September 30, 2020. See additional information under the caption “—Results of Operations.”

Investing Activities

Our cash flows from investing activities is generally used to fund development and operating property acquisitions, expenditures for development projects, and recurring and nonrecurring capital expenditures for our operating properties, net of proceeds received from dispositions of real estate assets. Our net cash used in investing activities decreased by $251.5 million or 34.6% for the nine months ended September 30, 2020 compared to the nine months ended September 30, 2019 primarily due to lower expenditures for development properties and undeveloped land and no acquisition activity during the nine months ended September 30, 2020.

Financing Activities

Our cash flows from financing activities is principally impacted by our capital raising activities, net of dividends and distributions paid to common and preferred security holders. Our net cash provided by financing activities increased by $342.0 million, or 61.2%, for the nine months ended September 30, 2020 compared to the nine months ended September 30, 2019 primarily due to the net proceeds received upon physical settlement of our February 2020 forward equity sale agreements pursuant to which we issued 5,750,000 shares of common stock and the forward equity sale agreements entered into during the year ended December 31, 2019 under our at-the-market program pursuant to which we issued 3,147,110 shares of common stock during the nine months ended September 30, 2020.

Off-Balance Sheet Arrangements

As of September 30, 2020 and as of the date this report was filed, we did not have any off-balance sheet transactions, arrangements or obligations, including contingent obligations.

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Non-GAAP Supplemental Financial Measure: Funds From Operations (“FFO”)

We calculate FFO in accordance with the 2018 Restated White Paper on FFO approved by the Board of Governors of NAREIT. The White Paper defines FFO as net income or loss calculated in accordance with GAAP, excluding extraordinary items, as defined by GAAP, gains and losses from sales of depreciable real estate and impairment write-downs associated with depreciable real estate, plus real estate-related depreciation and amortization (excluding amortization of deferred financing costs and depreciation of non-real estate assets) and after adjustment for unconsolidated partnerships and joint ventures. Our calculation of FFO includes the amortization of deferred revenue related to tenant-funded tenant improvements and excludes the depreciation of the related tenant improvement assets. We also add back net income attributable to noncontrolling common units of the Operating Partnership because we report FFO attributable to common stockholders and common unitholders.

We believe that FFO is a useful supplemental measure of our operating performance. The exclusion from FFO of gains and losses from the sale of operating real estate assets allows investors and analysts to readily identify the operating results of the assets that form the core of our activity and assists in comparing those operating results between periods. Also, because FFO is generally recognized as the industry standard for reporting the operations of REITs, it facilitates comparisons of operating performance to other REITs. However, other REITs may use different methodologies to calculate FFO, and accordingly, our FFO may not be comparable to all other REITs.

Implicit in historical cost accounting for real estate assets in accordance with GAAP is the assumption that the value of real estate assets diminishes predictably over time. Since real estate values have historically risen or fallen with market conditions, many industry investors and analysts have considered presentations of operating results for real estate companies using historical cost accounting alone to be insufficient. Because FFO excludes depreciation and amortization of real estate assets, we believe that FFO along with the required GAAP presentations provides a more complete measurement of our performance relative to our competitors and a more appropriate basis on which to make decisions involving operating, financing and investing activities than the required GAAP presentations alone would provide.

However, FFO should not be viewed as an alternative measure of our operating performance because it does not reflect either depreciation and amortization costs or the level of capital expenditures and leasing costs necessary to maintain the operating performance of our properties, which are significant economic costs and could materially impact our results from operations.

The following table presents our FFO for the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands)
Net income available to common stockholders	$	49,028		$	43,846		$	108,463		$	122,943
Adjustments:
Net income attributable to noncontrolling common units of the Operating Partnership	785			852			1,857			2,423
Net income attributable to noncontrolling interests in consolidated property partnerships	4,258			3,600			13,521			11,941
Depreciation and amortization of real estate assets	70,422			67,985			218,841			199,967
Gains on sales of depreciable real estate	—			—			—			(7,169		)
Funds From Operations attributable to noncontrolling interests in consolidated property partnerships	(7,102		)	(7,040		)	(22,029		)	(21,145		)
Funds From Operations (1)(2)	$	117,391		$	109,243		$	320,653		$	308,960

________________________

(1) Reported amounts are attributable to common stockholders, common unitholders and restricted stock unitholders.

(2) FFO available to common stockholders and unitholders includes amortization of deferred revenue related to tenant-funded tenant improvements of $4.4 million and $6.8 million for the three months ended September 30, 2020 and 2019, respectively, and $17.4 million and $14.9 million for the nine months ended September 30, 2020 and 2019, respectively.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Information about our market risk is disclosed in “Part II, Item 7A, Quantitative and Qualitative Disclosures About Market Risk” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2019, and is incorporated herein by reference. There have been no material changes for the nine months ended September 30, 2020, to the information provided in “Part II, Item 7A, Quantitative and Qualitative Disclosures About Market Risk” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2019.

ITEM 4. CONTROLS AND PROCEDURES

Kilroy Realty Corporation

The Company maintains disclosure controls and procedures (as defined in Rule 13a-15(e) or Rule 15d-15(e) under the Exchange Act) that are designed to ensure that information required to be disclosed in the Company’s reports under the Exchange Act is processed, recorded, summarized and reported within the time periods specified in the SEC’s rules and forms and that such information is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, as appropriate, to allow for timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

As required by SEC Rule 13a-15(b), the Company carried out an evaluation, under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the disclosure controls and procedures as of September 30, 2020, the end of the period covered by this report. Based on the foregoing, the Company’s Chief Executive Officer and Chief Financial Officer concluded, as of that time, the disclosure controls and procedures were effective at the reasonable assurance level.

There have been no changes that occurred during the period covered by this report in the Company’s internal control over financial reporting identified in connection with the evaluation referenced above that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Kilroy Realty, L.P.

The Operating Partnership maintains disclosure controls and procedures (as defined in Rule 13a-15(e) or Rule 15d-15(e) under the Exchange Act) that are designed to ensure that information required to be disclosed in the Operating Partnership’s reports under the Exchange Act is processed, recorded, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer of its general partner, as appropriate, to allow for timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

As required by SEC Rule 13a-15(b), the Operating Partnership carried out an evaluation, under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer of its general partner, of the effectiveness of the design and operation of the disclosure controls and procedures as of September 30, 2020, the end of the period covered by this report. Based on the foregoing, the Chief Executive Officer and Chief Financial Officer of its general partner concluded, as of that time, the disclosure controls and procedures were effective at the reasonable assurance level.

There have been no changes that occurred during the period covered by this report in the Operating Partnership’s internal control over financial reporting identified in connection with the evaluation referenced above that have materially affected, or are reasonably likely to materially affect, the Operating Partnership’s internal control over financial reporting.

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PART II – OTHER INFORMATION

ITEM 1.    LEGAL PROCEEDINGS

We and our properties are subject to routine litigation incidental to our business. These matters are generally covered by insurance. As of September 30, 2020, we are not a defendant in, and our properties are not subject to, any legal proceedings that we believe, if determined adversely to us, would have a material adverse effect upon our financial condition, results of operations or cash flows.

ITEM 1A. RISK FACTORS

There have been no material changes to the risk factors included in the Company’s and the Operating Partnership’s annual report on Form 10-K for the year ended December 31, 2019, other than as set forth below, which supplements the risk factors included in the Company’s and the Operating Partnership’s annual report on Form 10-K for the year ended December 31, 2019.

The ongoing COVID-19 pandemic, and restrictions intended to prevent its spread, could adversely impact our business, financial condition, results of operations, cash flows, liquidity and ability to satisfy our debt service obligations and to pay dividends and distributions to security holders. The ongoing COVID-19 pandemic, and restrictions intended to prevent its spread, have already had a significant adverse impact on economic and market conditions around the world in 2020, including the United States and the markets in which we own properties and/or have development projects. The impact of the COVID-19 pandemic continues to evolve. All the states where we own properties and/or have development projects (i.e., California and Washington) initially reacted to the COVID-19 pandemic by instituting quarantines, restrictions on travel, “shelter in place” rules, stay-at-home orders, density limitations, social distancing measures, restrictions on types of business that may continue to operate and/or restrictions on types of construction projects that may continue. Although some state governments and other authorities were in varying stages of lifting or modifying some of these measures, all the states where we own properties and/or have development projects have been forced to reinstitute these measures and may, in the future, impose new, more restrictive measures, if the risks, or the perception of the risks, related to the COVID-19 pandemic worsen at any time. Furthermore, although in certain cases, exceptions are available for essential retail, research and laboratory activities, essential building services, such as cleaning and maintenance, and certain essential construction projects, there can be no assurance that such exceptions will enable us to avoid adverse impacts on our business, financial condition, results of operations, cash flows, liquidity and ability to satisfy our debt service obligations and to pay dividends and distributions to security holders. For instance, some of the activities of our parking, retail space, co-working tenants and residential tenants are not covered by the exceptions listed above, and we have seen weakness and a material reduction in rent collections from these tenants that may continue for an indeterminate period pending a cessation of the adverse impacts from the COVID-19 pandemic, and restrictions intended to prevent its spread. In addition, there can be no assurance as to how long restrictions intended to prevent the spread of COVID-19 may remain in place in the states and cities where we own properties, and even if such restrictions are lifted, they may be reinstituted at a later date. If such restrictions remain in place for an extended period of time, we may experience further reductions in rents from our tenants.

Across all property types, as of September 30, 2020, we collected approximately 96% of our total gross rent billings for the three months ended September 30, 2020, including 100% from all of our top 15 tenants and as of the date of this report, we have collected 94% of our total gross rent billings for October 2020, including 100% from all of our top 15 tenants. Although we are and will continue to be actively engaged in rent collection efforts related to uncollected rent, as well as working with certain tenants who have requested rent deferrals (particularly those occupying retail space), we can provide no assurance that such efforts or our efforts in future periods will be successful. In addition, we are and will continue to be actively engaged in discussions with certain tenants regarding the adverse impacts of the COVID-19 pandemic, and restrictions intended to prevent its spread, and may afford certain additional accommodations.

In addition, we may be required to continue to comply with “social distancing” at our properties and development projects and we may be subject to certain conditions, including requiring contractors to develop COVID-19 control, mitigation, and recovery plans and satisfy certain requirements before work can continue or commence, which may increase costs, perhaps substantially. We expect to comply with any state or local requirements. Our development projects could in the future be affected by moratoriums on construction. To the extent any city issues a moratorium, we may be subject to such a moratorium unless the applicable state or city grants an exclusion for these projects because certain of our development projects may qualify as essential construction projects.

The ongoing COVID-19 pandemic, and restrictions intended to prevent its spread, could have significant adverse impacts on our business, financial condition, results of operations, cash flows, liquidity and ability to satisfy our debt service obligations and

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to pay dividends and distributions to security holders in a variety of ways that are difficult to predict. Such adverse impacts could depend on, among other factors:

• the financial condition of our tenants - many of which are in the technology, media, healthcare, life sciences, entertainment and professional services industries - and their ability or willingness to pay rent in full on a timely basis;

• state, local, federal and industry-initiated efforts that may adversely affect landlords, including us, and their ability to collect rent and/or enforce remedies for the failure to pay rent;

• our need to defer or forgive rent and restructure leases with our tenants and our ability to do so on favorable terms or at all;

• significant job losses in the industries of our tenants, which may decrease demand for our office and retail space, causing market rental rates and property values to be negatively impacted;

• our ability to stabilize our development projects, renew leases or re-lease available space in our proprieties on favorable terms or at all, including as a result of a general decrease in demand for our office and retail space, deterioration in the economic and market conditions in the markets in which we own properties or due to restrictions intended to prevent the spread of COVID-19 that frustrate our leasing activities;

• a severe and prolonged disruption and instability in the global financial markets, including the debt and equity capital markets, all of which have already experienced and may continue to experience significant volatility, or deteriorations in credit and financing conditions, may affect our or our tenants’ ability to access capital necessary to fund our respective business operations or replace or renew maturing liabilities on a timely basis, on attractive terms or at all and may adversely affect the valuation of financial assets and liabilities, any of which could affect our and our tenants’ ability to meet liquidity and capital expenditure requirements;

• a refusal or failure of one or more lenders under our revolving credit facility to fund their respective financing commitments to us may affect our ability to access capital necessary to fund our business operations and to meet our liquidity and capital expenditure requirements;

• the ability of potential buyers of properties identified for potential future capital recycling transactions to obtain debt financing, which has been and may continue to be constrained for some potential buyers;

• a reduction in the values of our properties that could result in impairments or limit our ability to dispose of them at attractive prices or obtain debt financing secured by our properties;

• complete or partial shutdowns of one or more of our tenants’ manufacturing facilities or distribution centers, temporary or long-term disruptions in our tenants’ supply chains from local, national and international suppliers or delays in the delivery of products, services or other materials necessary for our tenants’ operations, which could force our tenants to reduce, delay or eliminate offerings of their products and services, reduce or eliminate their revenues and liquidity and/or result in their bankruptcy or insolvency;

• our ability to avoid delays or cost increases associated with building materials or construction services necessary for construction that could adversely impact our ability to continue or complete construction as planned, on budget or at all;

• our and our tenants’ ability to manage our respective businesses to the extent our and their management or personnel are impacted in significant numbers by the COVID-19 pandemic and are not willing, available or allowed to conduct work; and

• our and our tenants’ ability to ensure business continuity in the event our continuity of operations plan is not effective or improperly implemented or deployed during the COVID-19 pandemic.

The rapid development and fluidity of this situation precludes any prediction as to the ultimate adverse impact of the COVID-19 pandemic or restrictions intended to prevent its spread. Nevertheless, the ongoing COVID-19 pandemic, and restrictions intended to prevent its spread, and the current financial, economic and capital markets environment and future developments in these and other areas present material risks and uncertainties with respect to our business, financial condition, results of operations, cash flows, liquidity and ability to satisfy our debt service obligations and to pay dividends and distributions to security holders and could also have a material adverse effect on the market value of our securities. Moreover, to the extent any of these risks and uncertainties adversely impact us in the ways described above or otherwise, they may also have the effect of heightening many of the other risks set forth in this “Risk Factors” section and beginning on page 15 of the Company’s and the Operating Partnership’s Annual Report on Form 10-K for the year ended December 31, 2019.

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ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

(a) Recent Sales of Unregistered Securities: None.

(b) Use of Proceeds from Registered Securities: None.

(c) Purchases of Equity Securities by the Issuer and Affiliated Purchasers:

The table below reflects our purchases of common stock during each of the three months in the three-month period ended

September 30, 2020.

Period	Total Number of Shares of Stock Purchased (1)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Number (or Approximate Dollar Value) that May Yet be Purchased Under the Plans or Programs
July 1. 2020 - July 31, 2020	58,795	$	56.77	—	—
August 1, 2020 - August 31, 2020	274	57.02		—	—
September 1, 2020 - September 30, 2020	—	—		—	—
Total	59,069	$	56.77	—	—

_______________

(1) Includes shares of common stock remitted to the Company to satisfy tax withholding obligations in connection with the distribution of, or the vesting and distribution of, restricted stock units or restricted stock in shares of common stock. The value of such shares of common stock remitted to the Company was based on the closing price of the Company’s common stock on the applicable withholding date.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

None.

ITEM 5. OTHER INFORMATION

None.

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ITEM 6. EXHIBITS

 

Exhibit Number	Description
3.(i)1	Kilroy Realty Corporation Articles of Amendment and Restatement (previously filed by Kilroy Realty Corporation as an exhibit on Form 8-K as filed with the Securities and Exchange Commission on May 21, 2020)
3.(i)2	Certificate of Limited Partnership of Kilroy Realty, L.P. (previously filed by Kilroy Realty, L.P., as an exhibit to the General Form for Registration of Securities on Form 10 as filed with the Securities and Exchange Commission on August 18, 2010)
3.(i)3	Amendment to the Certificate of Limited Partnership of Kilroy Realty, L.P. (previously filed by Kilroy Realty, L.P., as an exhibit to the General Form for Registration of Securities on Form 10 as filed with the Securities and Exchange Commission on August 18, 2010)
3.(i)4	Articles Supplementary reclassifying shares of the Series G Preferred Stock of the Company (previously filed by Kilroy Realty Corporation as an exhibit on Form 8-K as filed with the Securities and Exchange Commission on August 23, 2017)
3.(i)5	Articles Supplementary reclassifying shares of the Series H Preferred Stock of the Company (previously filed by Kilroy Realty Corporation as an exhibit on Form 8-K as filed with the Securities and Exchange Commission on August 23, 2017)
3.(ii)1	Fifth Amended and Restated Bylaws of Kilroy Realty Corporation (previously filed by Kilroy Realty Corporation as an exhibit on Form 8-K as filed with the Securities and Exchange Commission on February 1, 2017)
3.(ii)2	Seventh Amended and Restated Agreement of Limited Partnership of Kilroy Realty, L.P. dated as of August 15, 2012, as amended (previously filed by Kilroy Realty Corporation on Form 10-Q for the quarter ended June 30, 2014)
31.1*	Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer of Kilroy Realty Corporation
31.2*	Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer of Kilroy Realty Corporation
31.3*	Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer of Kilroy Realty, L.P.
31.4*	Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer of Kilroy Realty, L.P.
32.1*	Section 1350 Certification of Chief Executive Officer of Kilroy Realty Corporation
32.2*	Section 1350 Certification of Chief Financial Officer of Kilroy Realty Corporation
32.3*	Section 1350 Certification of Chief Executive Officer of Kilroy Realty, L.P.
32.4*	Section 1350 Certification of Chief Financial Officer of Kilroy Realty, L.P.
101.1	The following Kilroy Realty Corporation and Kilroy Realty, L.P. financial information for the quarter ended September 30, 2020, formatted in inline XBRL (eXtensible Business Reporting Language): (i) Consolidated Balance Sheets (unaudited), (ii) Consolidated Statements of Operations (unaudited), (iii) Consolidated Statements of Equity (unaudited), (iv) Consolidated Statements of Capital (unaudited), (v) Consolidated Statements of Cash Flows (unaudited) and (vi) Notes to the Consolidated Financial Statements (unaudited).(1)
104.1*	Cover Page Interactive Data File - The cover page interactive data file does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.

_______________

*	Filed herewith.
†	Management contract or compensatory plan or arrangement.
(1)	Pursuant to Rule 406T of Regulation S-T, these interactive data files are deemed not filed or part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 1933 or Section 18 of the Securities Exchange Act of 1934 and otherwise are not subject to liability under these sections.

65

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized on October 29, 2020.

KILROY REALTY CORPORATION
	By:	/s/ John Kilroy
		John Kilroy President and Chief Executive Officer (Principal Executive Officer)
	By:	/s/ Tyler H. Rose
		Tyler H. Rose Executive Vice President and Chief Financial Officer (Principal Financial Officer)
	By:	/s/ Merryl E. Werber
		Merryl E. Werber Senior Vice President, Chief Accounting Officer and Controller (Principal Accounting Officer)

66

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized on October 29, 2020.

KILROY REALTY, L.P.
BY:	KILROY REALTY CORPORATION
	Its general partner
	By:	/s/ John Kilroy
		John Kilroy President and Chief Executive Officer (Principal Executive Officer)
	By:	/s/ Tyler H. Rose
		Tyler H. Rose Executive Vice President and Chief Financial Officer (Principal Financial Officer)
	By:	/s/ Merryl E. Werber
		Merryl E. Werber Senior Vice President, Chief Accounting Officer and Controller (Principal Accounting Officer)

67

EX-31.1

Exhibit 31.1

Certification of Chief Executive Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, John Kilroy, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Kilroy Realty Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s Board of Directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/s/ John Kilroy

John Kilroy

President and Chief Executive Officer

Date: October 29, 2020

EX-31.2

Exhibit 31.2

Certification of Chief Financial Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Tyler H. Rose, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Kilroy Realty Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s Board of Directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/s/ Tyler H. Rose

Tyler H. Rose

Executive Vice President and Chief Financial Officer

Date: October 29, 2020

EX-31.3

Exhibit 31.3

Certification of Chief Executive Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, John Kilroy, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Kilroy Realty, L.P.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s Board of Directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/s/ John Kilroy

John Kilroy

President and Chief Executive Officer

Kilroy Realty Corporation, sole general partner of

  Kilroy Realty, L.P.

Date: October 29, 2020

EX-31.4

Exhibit 31.4

Certification of Chief Financial Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Tyler H. Rose, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Kilroy Realty, L.P.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's Board of Directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

/s/ Tyler H. Rose

Tyler H. Rose

Executive Vice President and Chief Financial Officer

Kilroy Realty Corporation, sole general partner of

Kilroy Realty, L.P.

Date: October 29, 2020

EX-32.1

Exhibit 32.1

Certification of Chief Executive Officer

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Kilroy Realty Corporation (the “Company”) hereby certifies, to his knowledge, that:

(i) the accompanying Quarterly Report on Form 10-Q of the Company for the quarter ended September 30, 2020 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ John Kilroy
John Kilroy
President and Chief Executive Officer
Date:	October 29, 2020

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350, is not being filed as part of the Report or as a separate disclosure document, and is not being incorporated by reference into any filing of the Company or Kilroy Realty, L.P. under the Securities Act of 1933, as amended, or the Securities Act of 1934, as amended, (whether made before or after the date of the Report) irrespective of any general incorporation language contained in such filing. The signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

Certification of Chief Financial Officer

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Kilroy Realty Corporation (the “Company”) hereby certifies, to his knowledge, that:

(i) the accompanying Quarterly Report on Form 10-Q of the Company for the quarter ended September 30, 2020 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Tyler H. Rose
Tyler H. Rose
Executive Vice President and Chief Financial Officer
Date:	October 29, 2020

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350, is not being filed as part of the Report or as a separate disclosure document, and is not being incorporated by reference into any filing of the Company or Kilroy Realty, L.P. under the Securities Act of 1933, as amended, or the Securities Act of 1934, as amended, (whether made before or after the date of the Report) irrespective of any general incorporation language contained in such filing. The signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.3

Exhibit 32.3

Certification of Chief Executive Officer

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Kilroy Realty Corporation, the sole general partner of Kilroy Realty, L.P. (the “Operating Partnership”), hereby certifies, to his knowledge, that:

(i) the accompanying Quarterly Report on Form 10-Q of the Operating Partnership for the quarter ended September 30, 2020 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Operating Partnership.

/s/ John Kilroy
John Kilroy
President and Chief Executive Officer
Kilroy Realty Corporation, sole general partner of Kilroy Realty, L.P.
Date:	October 29, 2020

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350, is not being filed as part of the Report or as a separate disclosure document, and is not being incorporated by reference into any filing of Kilroy Realty Corporation or the Operating Partnership under the Securities Act of 1933, as amended, or the Securities Act of 1934, as amended, (whether made before or after the date of the Report) irrespective of any general incorporation language contained in such filing. The signed original of this written statement required by Section 906 has been provided to the Operating Partnership and will be retained by the Operating Partnership and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.4

Exhibit 32.4

Certification of Chief Financial Officer

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Kilroy Realty Corporation, the sole general partner of Kilroy Realty, L.P. (the “Operating Partnership”), hereby certifies, to his knowledge, that:

(i) the accompanying Quarterly Report on Form 10-Q of the Operating Partnership for the quarter ended September 30, 2020 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Operating Partnership.

/s/ Tyler H. Rose
Tyler H. Rose
Executive Vice President and Chief Financial Officer
Kilroy Realty Corporation, sole general partner of Kilroy Realty, L.P.
Date:	October 29, 2020

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350, is not being filed as part of the Report or as a separate disclosure document, and is not being incorporated by reference into any filing of Kilroy Realty Corporation or the Operating Partnership under the Securities Act of 1933, as amended, or the Securities Act of 1934, as amended, (whether made before or after the date of the Report) irrespective of any general incorporation language contained in such filing. The signed original of this written statement required by Section 906 has been provided to the Operating Partnership and will be retained by the Operating Partnership and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Cover Page - shares	9 Months Ended
	Sep. 30, 2020	Oct. 23, 2020
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	1-12675
Entity Registrant Name	KILROY REALTY CORPORATION
Entity Incorporation, State Code	MD
Entity Tax Identification Number	95-4598246
Entity Address, Address Line One	12200 W. Olympic Boulevard
Entity Address, Address Line Two	Suite 200
Entity Address, City or Town	Los Angeles
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90064
City Area Code	310
Local Phone Number	481-8400
Title of 12(b) Security	Common Stock, $.01 par value
Security Exchange Name	NYSE
Trading Symbol	KRC
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		115,251,136
Entity Central Index Key	0001025996
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false
Kilroy Realty L.P. [Member]
Entity Information [Line Items]
Entity File Number	000-54005
Entity Registrant Name	KILROY REALTY, L.P.
Entity Incorporation, State Code	DE
Entity Tax Identification Number	95-4612685
Title of 12(g) Security	Common Units Representing Limited Partnership Interests
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Central Index Key	0001493976

XML

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
REAL ESTATE ASSETS:
Land and improvements	$ 1,612,224	$ 1,466,166
Buildings and improvements	6,535,637	5,866,477
Undeveloped land and construction in progress	1,938,923	2,296,130
Total real estate assets held for investment	10,086,784	9,628,773
Accumulated depreciation and amortization	(1,744,325)	(1,561,361)
Total real estate assets held for investment, net	8,342,459	8,067,412
CASH AND CASH EQUIVALENTS (Note 4)	849,009	60,044
RESTRICTED CASH	16,300	16,300
MARKETABLE SECURITIES (Note 10)	25,073	27,098
CURRENT RECEIVABLES, NET	16,083	26,489
DEFERRED RENT RECEIVABLES, NET	375,939	337,937
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET	208,306	212,805
RIGHT OF USE GROUND LEASE ASSETS (Note 9)	95,733	96,348
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 2)	55,706	55,661
TOTAL ASSETS	9,984,608	8,900,094
LIABILITIES:
Secured debt, net (Notes 3 and 10)	254,854	258,593
Unsecured debt, net (Notes 3, and 10)	3,668,976	3,049,185
Unsecured line of credit (Notes 3 and 10)	0	245,000
Accounts payable, accrued expenses and other liabilities	458,421	418,848
Ground lease liabilities (Note 9)	97,936	98,400
Accrued dividends and distributions (Note 15)	59,416	53,219
Deferred revenue and acquisition-related intangible liabilities, net	131,558	139,488
Rents received in advance and tenant security deposits	61,483	66,503
Total liabilities	4,732,644	4,329,236
COMMITMENTS AND CONTINGENCIES (Note 9)
Stockholders’ Equity (Note 4):
Common stock, $.01 par value, 280,000,000 and 150,000,000 shares authorized, respectively, 115,247,221 and 106,016,287 shares issued and outstanding, respectively	1,152	1,060
Additional paid-in capital	5,089,926	4,350,917
Distributions in excess of earnings	(122,936)	(58,467)
Total stockholders’ equity	4,968,142	4,293,510
Noncontrolling Interests (Notes 1 and 5):
Common units of the Operating Partnership	83,226	81,917
Noncontrolling interests in consolidated property partnerships	200,596	195,431
Total noncontrolling interests	283,822	277,348
Total equity	5,251,964	4,570,858
TOTAL LIABILITIES AND EQUITY (CAPITAL)	9,984,608	8,900,094
Kilroy Realty L.P. [Member]
REAL ESTATE ASSETS:
Land and improvements	1,612,224	1,466,166
Buildings and improvements	6,535,637	5,866,477
Undeveloped land and construction in progress	1,938,923	2,296,130
Total real estate assets held for investment	10,086,784	9,628,773
Accumulated depreciation and amortization	(1,744,325)	(1,561,361)
Total real estate assets held for investment, net	8,342,459	8,067,412
CASH AND CASH EQUIVALENTS (Note 4)	849,009	60,044
RESTRICTED CASH	16,300	16,300
MARKETABLE SECURITIES (Note 10)	25,073	27,098
CURRENT RECEIVABLES, NET	16,083	26,489
DEFERRED RENT RECEIVABLES, NET	375,939	337,937
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET	208,306	212,805
RIGHT OF USE GROUND LEASE ASSETS (Note 9)	95,733	96,348
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 2)	55,706	55,661
TOTAL ASSETS	9,984,608	8,900,094
LIABILITIES:
Secured debt, net (Notes 3 and 10)	254,854	258,593
Unsecured debt, net (Notes 3, and 10)	3,668,976	3,049,185
Unsecured line of credit (Notes 3 and 10)	0	245,000
Accounts payable, accrued expenses and other liabilities	458,421	418,848
Ground lease liabilities (Note 9)	97,936	98,400
Accrued dividends and distributions (Note 15)	59,416	53,219
Deferred revenue and acquisition-related intangible liabilities, net	131,558	139,488
Rents received in advance and tenant security deposits	61,483	66,503
Total liabilities	4,732,644	4,329,236
COMMITMENTS AND CONTINGENCIES (Note 9)
Noncontrolling Interests (Notes 1 and 5):
Common units, 115,247,221 and 106,016,287 held by the general partner and 1,931,574 and 2,023,287 held by common limited partners issued and outstanding, respectively (Note 6)	5,051,368	4,369,758
Noncontrolling interests in consolidated property partnerships and subsidiaries (Note 1)	200,596	201,100
Total capital	5,251,964	4,570,858
TOTAL LIABILITIES AND EQUITY (CAPITAL)	$ 9,984,608	$ 8,900,094

XML

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	280,000,000	150,000,000
Common stock, shares issued (in shares)	115,247,221	106,016,287
Common stock, shares outstanding (in shares)	115,247,221	106,016,287
Common units [Member] | Kilroy Realty L.P. [Member]
General partner, units issued	115,247,221	106,016,287
General partners, units outstanding	115,247,221	106,016,287
Limited partners, units issued	1,931,574	2,023,287
Noncontrolling common units of the Operating Partnership (in units)	1,931,574	2,023,287

XML

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue, Product and Service [Extensible List]	us-gaap:ServiceMember
REVENUES
Rental income (Note 8)	$ 227,122	$ 212,321	$ 664,111	$ 609,332
Other property income	1,192	3,204	4,954	7,887
Total revenues	228,314	215,525	669,065	617,219
EXPENSES
Property expenses	39,236	41,308	116,048	117,993
Real estate taxes	23,868	19,998	67,924	56,563
Ground leases (Note 9)	2,119	2,049	6,766	6,135
General and administrative expenses (Notes 7 and 10)	18,572	22,576	76,179	65,774
Leasing costs	986	1,192	3,772	5,599
Depreciation and amortization	71,863	69,230	226,318	203,617
Total expenses	156,644	156,353	497,007	455,681
OTHER (EXPENSES) INCOME
Interest income and other net investment gain (Note 10)	1,869	761	1,579	3,205
Interest expense (Note 3)	(19,468)	(11,635)	(49,796)	(34,605)
Gains on sales of depreciable operating properties	0	0	0	7,169
Total other (expenses) income	(17,599)	(10,874)	(48,217)	(24,231)
NET INCOME	54,071	48,298	123,841	137,307
Net income attributable to noncontrolling common units of the Operating Partnership	(785)	(852)	(1,857)	(2,423)
Net income attributable to noncontrolling interests in consolidated property partnerships	(4,258)	(3,600)	(13,521)	(11,941)
Total income attributable to noncontrolling interests	(5,043)	(4,452)	(15,378)	(14,364)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS (UNITHOLDERS)	$ 49,028	$ 43,846	$ 108,463	$ 122,943
Net income available to common stockholders per share – basic (in dollars per share)	$ 0.42	$ 0.41	$ 0.95	$ 1.19
Net income available to common stockholders per share – diluted (in dollars per share)	$ 0.42	$ 0.41	$ 0.95	$ 1.18
Weighted average common shares outstanding – basic (in shares)	115,226,324	104,841,176	112,405,817	102,252,739
Weighted average common shares outstanding – diluted (in shares)	115,667,657	105,359,904	112,875,875	102,872,436
Kilroy Realty L.P. [Member]
REVENUES
Rental income (Note 8)	$ 227,122	$ 212,321	$ 664,111	$ 609,332
Other property income	1,192	3,204	4,954	7,887
Total revenues	228,314	215,525	669,065	617,219
EXPENSES
Property expenses	39,236	41,308	116,048	117,993
Real estate taxes	23,868	19,998	67,924	56,563
Ground leases (Note 9)	2,119	2,049	6,766	6,135
General and administrative expenses (Notes 7 and 10)	18,572	22,576	76,179	65,774
Leasing costs	986	1,192	3,772	5,599
Depreciation and amortization	71,863	69,230	226,318	203,617
Total expenses	156,644	156,353	497,007	455,681
OTHER (EXPENSES) INCOME
Interest income and other net investment gain (Note 10)	1,869	761	1,579	3,205
Interest expense (Note 3)	(19,468)	(11,635)	(49,796)	(34,605)
Gains on sales of depreciable operating properties	0	0	0	7,169
Total other (expenses) income	(17,599)	(10,874)	(48,217)	(24,231)
NET INCOME	54,071	48,298	123,841	137,307
Total income attributable to noncontrolling interests	(4,343)	(3,709)	(13,886)	(12,309)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS (UNITHOLDERS)	$ 49,728	$ 44,589	$ 109,955	$ 124,998
Net income available to common stockholders per share – basic (in dollars per share)	$ 0.42	$ 0.41	$ 0.95	$ 1.18
Net income available to common stockholders per share – diluted (in dollars per share)	$ 0.42	$ 0.41	$ 0.94	$ 1.18
Weighted average common shares outstanding – basic (in shares)	117,158,160	106,864,463	114,394,706	104,276,187
Weighted average common shares outstanding – diluted (in shares)	117,599,493	107,383,191	114,864,764	104,895,884

XML

CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Distributions in Excess of Earnings [Member]	Total Stockholders' Equity [Member]	Noncontrolling Interests [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Distributions in Excess of Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Total Stockholders' Equity [Member]	Kilroy Realty L.P. [Member]	Kilroy Realty L.P. [Member] Noncontrolling Interests [Member]	Kilroy Realty L.P. [Member] Partners Capital Common Unit [Member]
Beginning balance (in shares) at Dec. 31, 2018		100,746,988
Beginning balance at Dec. 31, 2018	$ 4,201,261	$ 1,007	$ 3,976,953	$ (48,053)	$ 3,929,907	$ 271,354	$ (3,146)	$ (3,146)	$ (3,146)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	41,794			36,903	36,903	4,891				$ 41,794	$ 4,286	$ 37,508
Issuance of share-based compensation awards	2,210		2,210		2,210
Non-cash amortization of share-based compensation (Note 7)	8,817		8,817		8,817					8,817		$ 8,817
Settlement of restricted stock units for shares of common stock (in shares)		393,240										393,240
Settlement of restricted stock units for shares of common stock	0	$ 4	(4)							0
Repurchase of common stock, stock options and restricted stock units (in shares)		(175,204)
Repurchase of common stock, stock options and restricted stock units	(12,130)	$ (1)	(12,129)		(12,130)
Exchange of common units of the Operating Partnership (in shares)		2,000
Exchange of common units of the Operating Partnership	0	$ 0	78		78	(78)
Distributions to noncontrolling interests in consolidated property partnerships	(6,309)					(6,309)				(6,309)	(6,309)
Adjustment for noncontrolling interest	0		279		279	(279)
Dividends declared per common share and common unit	(49,315)			(48,394)	(48,394)	(921)
Ending balance (in shares) at Mar. 31, 2019		100,967,024
Ending balance at Mar. 31, 2019	4,183,182	$ 1,010	3,976,204	(62,690)	3,914,524	268,658
Beginning balance (in shares) at Dec. 31, 2018		100,746,988
Beginning balance at Dec. 31, 2018	4,201,261	$ 1,007	3,976,953	(48,053)	3,929,907	271,354	$ (3,146)	$ (3,146)	$ (3,146)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	137,307									137,307
Ending balance (in shares) at Sep. 30, 2019		106,011,916
Ending balance at Sep. 30, 2019	4,539,509	$ 1,060	4,342,296	(78,707)	4,264,649	274,860
Beginning balance (in shares) at Mar. 31, 2019		100,967,024
Beginning balance at Mar. 31, 2019	4,183,182	$ 1,010	3,976,204	(62,690)	3,914,524	268,658
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	47,215			42,194	42,194	5,021				47,215	4,314	$ 42,901
Issuance of share-based compensation awards	820		820		820
Non-cash amortization of share-based compensation (Note 7)	8,732		8,732		8,732					8,732		$ 8,732
Exercise of stock options (in shares)		1,500										1,500
Exercise of stock options	64		64		64
Settlement of restricted stock units for shares of common stock (in shares)		16,270										16,270
Settlement of restricted stock units for shares of common stock	0									0
Repurchase of common stock, stock options and restricted stock units (in shares)		(12,759)
Repurchase of common stock, stock options and restricted stock units	(793)		(793)		(793)
Distributions to noncontrolling interests in consolidated property partnerships	(1,487)					(1,487)				(1,487)	(1,487)
Adjustment for noncontrolling interest	0		(160)		(160)	160
Dividends declared per common share and common unit	(50,830)			(49,849)	(49,849)	(981)
Ending balance (in shares) at Jun. 30, 2019		100,972,035
Ending balance at Jun. 30, 2019	4,186,903	$ 1,010	3,984,867	(70,345)	3,915,532	271,371
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	48,298			43,846	43,846	4,452				48,298	3,709	$ 44,589
Issuance of common stock (in shares)		5,000,000
Issuance of common stock (Note 4)	353,904	$ 50	353,854		353,904
Issuance of share-based compensation awards	839		839		839
Non-cash amortization of share-based compensation (Note 7)	6,808		6,808		6,808					6,808		$ 6,808
Exercise of stock options (in shares)		15,000										15,000
Exercise of stock options	639		639		639
Settlement of restricted stock units for shares of common stock (in shares)		46,149										46,149
Settlement of restricted stock units for shares of common stock	0	$ 1	(1)							0
Repurchase of common stock, stock options and restricted stock units (in shares)		(21,268)
Repurchase of common stock, stock options and restricted stock units	(1,652)	$ (1)	(1,651)		(1,652)
Distributions to noncontrolling interests in consolidated property partnerships	(3,041)					(3,041)				(3,041)	(3,041)
Adjustment for noncontrolling interest	0		(3,059)		(3,059)	3,059
Dividends declared per common share and common unit	(53,189)			(52,208)	(52,208)	(981)
Ending balance (in shares) at Sep. 30, 2019		106,011,916
Ending balance at Sep. 30, 2019	$ 4,539,509	$ 1,060	4,342,296	(78,707)	4,264,649	274,860
Beginning balance (in shares) at Dec. 31, 2019	106,016,287	106,016,287
Beginning balance at Dec. 31, 2019	$ 4,570,858	$ 1,060	4,350,917	(58,467)	4,293,510	277,348
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	45,418			39,817	39,817	5,601				45,418	5,029	$ 40,389
Issuance of common stock (in shares)		8,897,110
Issuance of common stock (Note 4)	721,794	$ 89	721,705		721,794
Issuance of share-based compensation awards	1,720		1,720		1,720
Non-cash amortization of share-based compensation (Note 7)	8,653		8,653		8,653					8,653		$ 8,653
Settlement of restricted stock units for shares of common stock (in shares)		269,972										269,972
Settlement of restricted stock units for shares of common stock	0	$ 3	(3)							0
Repurchase of common stock, stock options and restricted stock units (in shares)		(117,445)
Repurchase of common stock, stock options and restricted stock units	(9,799)	$ (1)	(9,798)		(9,799)
Exchange of common units of the Operating Partnership (in shares)		2,000
Exchange of common units of the Operating Partnership	0		81		81	(81)
Distributions to noncontrolling interests in consolidated property partnerships	(2,617)					(2,617)				$ (2,617)	(2,617)
Adjustment for noncontrolling interest	0		(6,094)		(6,094)	6,094
Dividends declared per common share and common unit	(58,512)			(57,532)	(57,532)	(980)
Ending balance (in shares) at Mar. 31, 2020		115,067,924
Ending balance at Mar. 31, 2020	$ 5,277,515	$ 1,151	5,067,181	(76,182)	4,992,150	285,365
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member									us-gaap:AccountingStandardsUpdate201602member
Beginning balance (in shares) at Dec. 31, 2019	106,016,287	106,016,287
Beginning balance at Dec. 31, 2019	$ 4,570,858	$ 1,060	4,350,917	(58,467)	4,293,510	277,348
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 123,841									$ 123,841
Ending balance (in shares) at Sep. 30, 2020	115,247,221	115,247,221
Ending balance at Sep. 30, 2020	$ 5,251,964	$ 1,152	5,089,926	(122,936)	4,968,142	283,822
Beginning balance (in shares) at Mar. 31, 2020		115,067,924
Beginning balance at Mar. 31, 2020	5,277,515	$ 1,151	5,067,181	(76,182)	4,992,150	285,365
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	24,352			19,618	19,618	4,734				24,352	4,514	$ 19,838
Issuance of common stock (in shares)		0
Issuance of common stock (Note 4)	(45)	$ 0	(45)		(45)
Issuance of share-based compensation awards	805		805		805
Non-cash amortization of share-based compensation (Note 7)	13,576		13,576		13,576					13,576		$ 13,576
Settlement of restricted stock units for shares of common stock (in shares)		33,581										33,581
Settlement of restricted stock units for shares of common stock	0	$ 0	0							0
Repurchase of common stock, stock options and restricted stock units (in shares)		(11,668)
Repurchase of common stock, stock options and restricted stock units	(735)	$ 0	(735)		(735)
Exchange of common units of the Operating Partnership (in shares)		86,701
Exchange of common units of the Operating Partnership	0	$ 1	3,761		3,762	(3,762)
Distributions to noncontrolling interests in consolidated property partnerships	(4,281)					(4,281)				(4,281)	(4,281)
Adjustment for noncontrolling interest	0		(181)		(181)	181
Dividends declared per common share and common unit	(57,598)			(56,659)	(56,659)	(939)
Ending balance (in shares) at Jun. 30, 2020		115,176,538
Ending balance at Jun. 30, 2020	5,253,589	$ 1,152	5,084,362	(113,223)	4,972,291	281,298
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	54,071			49,028	49,028	5,043				54,071	4,343	$ 49,728
Issuance of common stock (in shares)		0
Issuance of common stock (Note 4)	(74)	$ 0	(74)		(74)
Issuance of share-based compensation awards	1,101		1,101		1,101
Non-cash amortization of share-based compensation (Note 7)	7,794		7,794		7,794					7,794		$ 7,794
Settlement of restricted stock units for shares of common stock (in shares)		126,740										126,740
Settlement of restricted stock units for shares of common stock	0	$ 1	(1)							0
Repurchase of common stock, stock options and restricted stock units (in shares)		(59,069)
Repurchase of common stock, stock options and restricted stock units	(3,353)	$ (1)	(3,352)		(3,353)
Exchange of common units of the Operating Partnership (in shares)		3,012
Exchange of common units of the Operating Partnership	0	$ 0	129		129	(129)
Distributions to noncontrolling interests in consolidated property partnerships	(1,458)					(1,458)				$ (1,458)	$ (1,458)
Adjustment for noncontrolling interest	0		(33)		(33)	33
Dividends declared per common share and common unit	$ (59,706)			(58,741)	(58,741)	(965)
Ending balance (in shares) at Sep. 30, 2020	115,247,221	115,247,221
Ending balance at Sep. 30, 2020	$ 5,251,964	$ 1,152	$ 5,089,926	$ (122,936)	$ 4,968,142	$ 283,822

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CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Dividends declared per common share and common unit (in dollars per share)	$ 0.50	$ 0.485	$ 0.485	$ 0.485	$ 0.485	$ 0.455

XML

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 123,841	$ 137,307
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	218,841	199,967
Depreciation of non-real estate furniture, fixtures and equipment	7,477	3,650
Revenue reversals (recoveries) for doubtful accounts (Note 8)	14,205	(3,685)
Non-cash amortization of share-based compensation awards	24,290	20,200
Non-cash amortization of deferred financing costs and debt discounts and premiums	2,252	911
Non-cash amortization of net below market rents	(6,269)	(6,241)
Gain on sale of depreciable operating properties	0	(7,169)
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(13,114)	(14,947)
Straight-line rents	(51,890)	(48,725)
Amortization of right of use ground lease assets	615	453
Net change in other operating assets	(4,245)	(24,752)
Net change in other operating liabilities	47,977	44,421
Net cash provided by operating activities	363,980	301,390
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development properties and undeveloped land	(386,237)	(554,951)
Expenditures for operating properties and other capital assets	(89,464)	(99,479)
Expenditures for acquisition of undeveloped land	0	(40,027)
Net proceeds received from dispositions	0	17,271
Net increase in acquisition-related deposits	0	(49,998)
Net cash used in investing activities	(475,701)	(727,184)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock (Note 4)	721,675	353,904
Proceeds from the issuance of unsecured debt (Note 3)	772,297	499,390
Borrowings on unsecured revolving credit facility (Note 3)	190,000	630,000
Repayments on unsecured revolving credit facility (Note 3)	(435,000)	(675,000)
Principal payments and repayments of secured debt (Note 3)	(3,834)	(75,844)
Repayments of unsecured debt	(150,000)	0
Financing costs	(6,216)	(5,548)
Repurchase of common stock and restricted stock units	(13,887)	(14,269)
Distributions to noncontrolling interests in consolidated property partnerships	(8,363)	(10,844)
Dividends and distributions paid to common stockholders and common unitholders	(165,986)	(143,812)
Proceeds from exercise of stock options	0	703
Net cash provided by financing activities	900,686	558,680
Net increase in cash and cash equivalents and restricted cash	788,965	132,886
Cash and cash equivalents and restricted cash, beginning of period	76,344	171,034
Cash and cash equivalents and restricted cash, end of period	865,309	303,920
Kilroy Realty L.P. [Member]
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	123,841	137,307
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	218,841	199,967
Depreciation of non-real estate furniture, fixtures and equipment	7,477	3,650
Revenue reversals (recoveries) for doubtful accounts (Note 8)	14,205	(3,685)
Non-cash amortization of share-based compensation awards	24,290	20,200
Non-cash amortization of deferred financing costs and debt discounts and premiums	2,252	911
Non-cash amortization of net below market rents	(6,269)	(6,241)
Gain on sale of depreciable operating properties	0	(7,169)
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(13,114)	(14,947)
Straight-line rents	(51,890)	(48,725)
Amortization of right of use ground lease assets	615	453
Net change in other operating assets	(4,245)	(24,752)
Net change in other operating liabilities	47,977	44,421
Net cash provided by operating activities	363,980	301,390
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development properties and undeveloped land	(386,237)	(554,951)
Expenditures for operating properties and other capital assets	(89,464)	(99,479)
Expenditures for acquisition of undeveloped land	0	(40,027)
Net proceeds received from dispositions	0	17,271
Net increase in acquisition-related deposits	0	(49,998)
Net cash used in investing activities	(475,701)	(727,184)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock (Note 4)	721,675	353,904
Proceeds from the issuance of unsecured debt (Note 3)	772,297	499,390
Borrowings on unsecured revolving credit facility (Note 3)	190,000	630,000
Repayments on unsecured revolving credit facility (Note 3)	(435,000)	(675,000)
Principal payments and repayments of secured debt (Note 3)	(3,834)	(75,844)
Repayments of unsecured debt	(150,000)	0
Financing costs	(6,216)	(5,548)
Repurchase of common stock and restricted stock units	(13,887)	(14,269)
Distributions to noncontrolling interests in consolidated property partnerships	(8,363)	(10,844)
Dividends and distributions paid to common stockholders and common unitholders	(165,986)	(143,812)
Proceeds from exercise of stock options	0	703
Net cash provided by financing activities	900,686	558,680
Net increase in cash and cash equivalents and restricted cash	788,965	132,886
Cash and cash equivalents and restricted cash, beginning of period	76,344	171,034
Cash and cash equivalents and restricted cash, end of period	$ 865,309	$ 303,920

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CONSOLIDATED STATEMENTS OF CAPITAL (KILROY REALTY, L.P.) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Accounting Standards Update [Extensible List]			us-gaap:AccountingStandardsUpdate201602Member
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	$ 54,071	$ 24,352	$ 45,418	$ 48,298	$ 47,215	$ 41,794	$ 123,841	$ 137,307
Non-cash amortization of share-based compensation (Note 7)	7,794	13,576	8,653	6,808	8,732	8,817
Settlement of restricted stock units	0	0	0	0	0	0
Distributions to noncontrolling interests in consolidated property partnerships	(1,458)	(4,281)	(2,617)	(3,041)	(1,487)	(6,309)
Noncontrolling Interests [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	5,043	4,734	5,601	4,452	5,021	4,891
Distributions to noncontrolling interests in consolidated property partnerships	(1,458)	(4,281)	$ (2,617)	(3,041)	(1,487)	(6,309)
Kilroy Realty L.P. [Member]
Accounting Standards Update [Extensible List]			us-gaap:AccountingStandardsUpdate201602member
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	5,253,589	5,277,515	$ 4,570,858	4,186,903	4,183,182	4,201,261	4,570,858	4,201,261
Net income	54,071	24,352	45,418	48,298	47,215	41,794	123,841	137,307
Issuance of common units (Note 4)	(74)	(45)	721,794	353,904
Issuance of share-based compensation awards	1,101	805	1,720	839	820	2,210
Non-cash amortization of share-based compensation (Note 7)	7,794	13,576	8,653	6,808	8,732	8,817
Exercise of stock options				639	64
Settlement of restricted stock units	0	0	0	0	0	0
Repurchase of common units, stock options and restricted stock units	(3,353)	(735)	(9,799)	(1,652)	(793)	(12,130)
Distributions to noncontrolling interests in consolidated property partnerships	(1,458)	(4,281)	(2,617)	(3,041)	(1,487)	(6,309)
Dividends declared per common unit	(59,706)	(57,598)	(58,512)	(53,189)	(50,830)	(49,315)
Ending balance	$ 5,251,964	$ 5,253,589	$ 5,277,515	$ 4,539,509	$ 4,186,903	$ 4,183,182	$ 5,251,964	$ 4,539,509
Kilroy Realty L.P. [Member] | Partners' Capital [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance (in units)	117,111,124	117,089,211	108,039,574	102,995,322	102,990,311	102,772,275	108,039,574	102,772,275
Beginning balance	$ 5,049,844	$ 5,074,003	$ 4,369,758	$ 3,988,538	$ 3,987,644	$ 4,003,700	$ 4,369,758	$ 4,003,700
Net income	$ 49,728	$ 19,838	$ 40,389	$ 44,589	42,901	37,508
Issuance of common units (in units)	0	0	8,897,110	5,000,000
Issuance of common units (Note 4)	$ (74)	$ (45)	$ 721,794	$ 353,904
Issuance of share-based compensation awards	1,101	805	1,720	839	820	2,210
Non-cash amortization of share-based compensation (Note 7)	$ 7,794	$ 13,576	$ 8,653	$ 6,808	$ 8,732	$ 8,817
Exercise of stock options (in shares)				15,000	1,500
Exercise of stock options				$ 639	$ 64
Settlement of restricted stock units (in units)	126,740	33,581	269,972	46,149	16,270	393,240
Repurchase of common units, stock options and restricted stock units (in units)	(59,069)	(11,668)	(117,445)	(21,268)	(12,759)	(175,204)
Repurchase of common units, stock options and restricted stock units	$ (3,353)	$ (735)	$ (9,799)	$ (1,652)	$ (793)	$ (12,130)
Contribution of noncontrolling interests in consolidated subsidiary	6,034
Dividends declared per common unit	$ (59,706)	$ (57,598)	$ (58,512)	$ (53,189)	$ (50,830)	$ (49,315)
Ending balance (in units)	117,178,795	117,111,124	117,089,211	108,035,203	102,995,322	102,990,311	117,178,795	108,035,203
Ending balance	$ 5,051,368	$ 5,049,844	$ 5,074,003	$ 4,340,476	$ 3,988,538	$ 3,987,644	$ 5,051,368	$ 4,340,476
Kilroy Realty L.P. [Member] | Noncontrolling Interests [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	203,745	203,512	201,100	198,365	195,538	197,561	201,100	197,561
Net income	4,343	4,514	5,029	3,709	4,314	4,286
Contribution of noncontrolling interests in consolidated subsidiary	(6,034)
Distributions to noncontrolling interests in consolidated property partnerships	(1,458)	(4,281)	(2,617)	(3,041)	(1,487)	(6,309)
Ending balance	$ 200,596	$ 203,745	$ 203,512	$ 199,033	$ 198,365	195,538	$ 200,596	199,033
Cumulative Effect, Period of Adoption, Adjustment [Member] | Kilroy Realty L.P. [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance						(3,146)		(3,146)
Cumulative Effect, Period of Adoption, Adjustment [Member] | Kilroy Realty L.P. [Member] | Partners' Capital [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance						$ (3,146)		$ (3,146)

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CONSOLIDATED STATEMENTS OF CAPITAL (KILROY REALTY, L.P.) (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019
Kilroy Realty L.P. [Member]
Dividends declared per common unit (in dollars per unit)	$ 0.50	$ 0.485	$ 0.485	$ 0.485	$ 0.485	$ 0.455

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Organization, Ownership and Basis of Presentation

9 Months Ended

Sep. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization, Ownership and Basis of Presentation

Organization, Ownership and Basis of Presentation

Organization and Ownership

Kilroy Realty Corporation (the “Company”) is a self-administered real estate investment trust (“REIT”) active in premier office and mixed-use submarkets along the West Coast. We own, develop, acquire and manage real estate assets, consisting primarily of Class A properties in the coastal regions of Greater Los Angeles, San Diego County, the San Francisco Bay Area and Greater Seattle, which we believe have strategic advantages and strong barriers to entry. Class A real estate encompasses attractive and efficient buildings of high quality that are attractive to tenants, are well-designed and constructed with above-average material, workmanship and finishes and are well-maintained and managed. We qualify as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”). The Company’s common stock is publicly traded on the New York Stock Exchange (“NYSE”) under the ticker symbol “KRC”.

We own our interests in all of our real estate assets through Kilroy Realty, L.P. (the “Operating Partnership”). We generally conduct substantially all of our operations through the Operating Partnership. Unless stated otherwise or the context indicates otherwise, the terms “Kilroy Realty Corporation” or the “Company,” “we,” “our,” and “us” refer to Kilroy Realty Corporation and its consolidated subsidiaries and the term “Operating Partnership” refers to Kilroy Realty, L.P. and its consolidated subsidiaries. The descriptions of our business, employees and properties apply to both the Company and the Operating Partnership.

Our stabilized portfolio of operating properties was comprised of the following properties at September 30, 2020:

	Number of Buildings	Rentable Square Feet	Number of Tenants	Percentage  Occupied		Percentage Leased
Stabilized Office Properties (1)	114	14,329,607	461	92.2	%	95.5	%

________________________

(1) Includes stabilized retail space.

	Number of Buildings	Number of Units	2020 Average Occupancy
Stabilized Residential Property	1	200	87.8	%

Our stabilized portfolio includes all of our properties with the exception of development and redevelopment properties currently committed for construction, under construction, or in the tenant improvement phase, undeveloped land, recently completed residential properties not yet stabilized and real estate assets held for sale. We define redevelopment properties as those properties for which we expect to spend significant development and construction costs on the existing or acquired buildings pursuant to a formal plan, the intended result of which is a higher economic return on the property. We define properties in the tenant improvement phase as office properties that we are developing or redeveloping where the project has reached cold shell condition and is ready for tenant improvements, which may require additional major base building construction before being placed in service. Projects in the tenant improvement phase are added to our stabilized portfolio once the project reaches the earlier of 95% occupancy or one year from the date of the cessation of major base building construction activities. Costs capitalized to construction in progress for development and redevelopment properties are transferred to land and improvements, buildings and improvements, and deferred leasing costs on our consolidated balance sheets at the historical cost of the property as the projects are placed in service.

During the nine months ended September 30, 2020, we added two development projects to our stabilized portfolio consisting of 750,370 square feet of office space in San Francisco, California and 95,871 square feet of retail space in San Diego, California. As of September 30, 2020, the following properties were excluded from our stabilized portfolio. We did not have any redevelopment properties or properties held for sale at September 30, 2020.

	Number of Properties/Projects	Estimated Rentable Square Feet (1) / Units
In-process development projects - tenant improvement	4	1,435,000
In-process development projects - under construction (2)	3	856,000
Completed residential development project (3)	1	608 units

________________________

(1) Estimated rentable square feet upon completion.

(2) In addition to the estimated office and life science rentable square feet noted above, development projects under construction also include 193 residential units.

(3) Represents all three recently completed residential phases of our mixed-use development in San Diego, California that are not yet stabilized.

Our stabilized portfolio also excludes our future development pipeline, which as of September 30, 2020 was comprised of five future development sites, representing approximately 61 gross acres of undeveloped land.

As of September 30, 2020, all of our properties and development projects were owned and all of our business was conducted in the state of California with the exception of eight office properties, one development project in the tenant improvement phase and one future development project located in the state of Washington. All of our properties and development projects are 100% owned, excluding four office properties owned by three consolidated property partnerships. Two of the three consolidated property partnerships, 100 First Street Member, LLC (“100 First LLC”) and 303 Second Street Member, LLC (“303 Second LLC”), each owned one office property in San Francisco, California through subsidiary REITs. As of September 30, 2020, the Company owned a 56% common equity interest in both 100 First LLC and 303 Second LLC. The third consolidated property partnership, Redwood City Partners, LLC (“Redwood LLC”) owned two office properties in Redwood City, California. As of September 30, 2020, the Company owned an approximate 93% common equity interest in Redwood LLC. The remaining interests in all three property partnerships were owned by unrelated third parties.

Ownership and Basis of Presentation

The consolidated financial statements of the Company include the consolidated financial position and results of operations of the Company, the Operating Partnership, 303 Second LLC, 100 First LLC, Redwood LLC and all of our wholly-owned and controlled subsidiaries. The consolidated financial statements of the Operating Partnership include the consolidated financial position and results of operations of the Operating Partnership, 303 Second LLC, 100 First LLC, Redwood LLC and all of our wholly-owned and controlled subsidiaries. All intercompany balances and transactions have been eliminated in the consolidated financial statements.

As of September 30, 2020, the Company owned an approximate 98.4% common general partnership interest in the Operating Partnership. The remaining approximate 1.6% common limited partnership interest in the Operating Partnership as of September 30, 2020 was owned by non-affiliated investors and certain of our executive officers and directors. Both the general and limited common partnership interests in the Operating Partnership are denominated in common units. Generally, the number of common units held by the Company is equivalent to the number of outstanding shares of the Company’s common stock, and the rights of all the common units to quarterly distributions and payments in liquidation mirror those of the Company’s common stockholders. The common limited partners have certain redemption rights as provided in the Operating Partnership’s Seventh Amended and Restated Agreement of Limited Partnership, as amended, the “Partnership Agreement”. With the exception of the Operating Partnership and our consolidated property partnerships, all of our subsidiaries are wholly-owned.

The accompanying interim financial statements have been prepared by management in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and in conjunction with the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, the interim financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, the accompanying interim financial statements reflect all adjustments of a normal and recurring nature that are considered necessary for a fair presentation of the results for the interim periods presented. However, the results of operations for the interim periods are not necessarily indicative of the results that may be expected for the year ending December 31, 2020. The interim financial statements for the Company and the Operating Partnership should be read in conjunction with the audited consolidated financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2019.

Variable Interest Entities

The Operating Partnership is a variable interest entity (“VIE”) that is consolidated by the Company as the primary beneficiary as the Operating Partnership is a limited partnership in which the common limited partners do not have substantive kick-out or participating rights. At September 30, 2020, the consolidated financial statements of the Company included two VIEs in addition to the Operating Partnership: 100 First LLC and 303 Second LLC. At September 30, 2020, the Company and the Operating Partnership were determined to be the primary beneficiaries of these two VIEs since we had the ability to control the activities that most significantly impact each of the VIEs’ economic performance. As of September 30, 2020, the two VIEs’ total assets, liabilities and noncontrolling interests included on our consolidated balance sheet were approximately $477.6 million (of which $395.0 million related to real estate held for investment), approximately $35.3 million and approximately $194.9 million,

respectively. Revenues, income and net assets generated by 100 First LLC and 303 Second LLC may only be used to settle their contractual obligations, which primarily consist of operating expenses, capital expenditures and required distributions.

At December 31, 2019, the consolidated financial statements of the Company included four VIEs in which we were deemed to be the primary beneficiary (in addition to the Operating Partnership): two of the consolidated property partnerships, 100 First LLC and 303 Second LLC, and two entities established during the fourth quarter of 2019 to facilitate a Section 1031 Exchange. At December 31, 2019, the Company and the Operating Partnership were determined to be the primary beneficiaries of these four VIEs since we had the ability to control the activities that most significantly impact each of the VIEs’ economic performance. At December 31, 2019, the impact of consolidating the VIEs increased the Company’s total assets, liabilities and noncontrolling interests on our consolidated balance sheet by approximately $676.7 million (of which $598.0 million related to real estate held for investment), approximately $40.1 million and approximately $189.6 million, respectively.

Accounting Pronouncements Adopted January 1, 2020

ASU No. 2016-13 “Financial Instruments - Credit Losses (Topic 326)”

Effective January 1, 2020, we adopted Financial Accounting Standards Board (“FASB”) FASB Accounting Standards Update (“ASU”) No. 2016-13 (“ASU 2016-13”), which amends the accounting for credit losses for certain financial instruments. Under the new guidance, an entity recognizes its estimate of expected credit losses as an allowance, which the FASB believes will result in more timely recognition of such losses.  In November 2018, the FASB released ASU No. 2018-19 “Codification Improvements to Topic 326, Financial Instruments - Credit Losses.” This ASU clarifies that receivables arising from operating leases are not within the scope of Subtopic 326-20 “Financial Instruments – Credit Losses.” Instead, impairment of receivables arising from operating leases should be accounted for under Subtopic 842-30 “Leases – Lessor.” The adoption did not have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

ASU No. 2018-13 “Fair Value Measurement (Topic 820)”

Effective January 1, 2020, we adopted FASB ASU No. 2018-13 (“ASU 2018-13”), which amends the disclosure requirements for fair value measurements. The amendments in ASU 2018-13 include new, modified and eliminated disclosure requirements and are the result of a broader disclosure project called FASB Concepts Statement, Conceptual Framework for Financial Reporting - Chapter 8: Notes to Financial Statements (the “Concepts Statement”), which the FASB finalized on August 28, 2018. The FASB used the guidance in the Concepts Statement to improve the effectiveness of Topic 820’s disclosure requirements. The adoption did not have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

ASU No. 2018-15 “Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40)”

Effective January 1, 2020, we adopted FASB ASU No. 2018-15 (“ASU 2018-15”), which amends a customer’s accounting for implementation costs incurred in a cloud computing arrangement that is a service contract. ASU 2018-15 aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The adoption did not have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

COVID-19 Pandemic

The global impact of the COVID-19 pandemic continues to evolve rapidly and, as cases of the illness caused by the virus have continued to be identified in additional countries, many countries, including the United States, have reacted by instituting or re-instituting quarantines and restrictions on travel. In addition, all the states where we own properties and/or have development projects (i.e., California and Washington), have reacted to the COVID-19 pandemic by instituting quarantines, restrictions on travel, “shelter in place” rules, restrictions on types of business that may continue to operate and/or restrictions on types of construction projects that may continue.

COVID-19 Lease Modification Accounting Relief

Due to the business disruptions and challenges severely affecting the global economy caused by the COVID-19 pandemic, many lessors may be required to provide rent deferrals and other lease concessions to lessees. While the lease modification guidance in Accounting Standards Codification (“ASC”) Topic 842 (“Topic 842”) addresses routine changes to lease terms resulting from negotiations between the lessee and the lessor, this guidance did not contemplate concessions being so rapidly executed to address the sudden liquidity constraints of some lessees arising from the COVID-19 pandemic and restrictions intended to prevent its spread.

In April 2020, the FASB staff issued a question and answer document (the “Lease Modification Q&A”) focused on the application of lease accounting guidance to lease concessions provided as a result of the COVID-19 pandemic. Under existing lease guidance, the Company would have to determine, on a lease by lease basis, if a lease concession was the result of a new arrangement reached with the tenant (treated within the lease modification accounting framework) or if a lease concession was under the enforceable rights and obligations within the existing lease agreement (precluded from applying the lease modification accounting framework). The Lease Modification Q&A allows the Company, if certain criteria have been met, to bypass the lease by lease analysis, and instead elect to either apply the lease modification accounting framework or not, with such election applied consistently to leases with similar characteristics and similar circumstances. The Company has elected to apply such relief and availed itself of the election to avoid performing a lease by lease analysis. In addition, the Company has elected to apply the lease modification accounting framework consistently to leases within the property types in which it invests, specifically office, residential and retail properties.

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Prepaid Expenses and Other Assets, Net

9 Months Ended

Sep. 30, 2020

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Prepaid Expenses and Other Assets, Net

Prepaid Expenses and Other Assets, Net

Prepaid expenses and other assets, net consisted of the following at September 30, 2020 and December 31, 2019:

	September 30, 2020		December 31, 2019
	(in thousands)
Furniture, fixtures and other long-lived assets, net	$	42,899	$	35,286
Prepaid expenses	12,807		18,724
Note receivable (1)	—		1,651
Total prepaid expenses and other assets, net	$	55,706	$	55,661

________________________

(1)

During the nine months ended September 30, 2020, the balance of the note receivable was written-off and the note receivable was placed on non-accrual status. We do not recognize interest income on non-accrual financing receivables. As of December 31, 2019 the note receivable was shown net of a valuation allowance of approximately $3.6 million.

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Secured and Unsecured Debt of the Operating Partnership

9 Months Ended

Sep. 30, 2020

Kilroy Realty L.P. [Member]

Debt Instrument [Line Items]

Secured and Unsecured Debt of the Operating Partnership

Secured and Unsecured Debt of the Operating Partnership

The Company generally guarantees all of the Operating Partnership’s unsecured debt obligations including the unsecured revolving credit facility, the unsecured term loan facility and all of the unsecured senior notes.

Unsecured Senior Notes - Registered Offering

In August 2020, the Operating Partnership issued $425.0 million aggregate principal amount of green unsecured senior notes in a registered public offering. The outstanding balance of the unsecured senior notes is included in unsecured debt, net of an initial issuance discount of $2.7 million, on our consolidated balance sheets. The unsecured senior notes, which are scheduled to mature on November 15, 2032, require semi-annual interest payments each May and November based on a stated annual interest rate of 2.500%. The Operating Partnership may redeem the notes at any time prior to August 15, 2032, either in whole or in part, subject to the payment of an early redemption premium prior to a par call option period commencing three months prior to maturity.

Unsecured Senior Notes - Private Placement

In April 2020, the Operating Partnership entered into a Note Purchase Agreement in connection with the issuance and sale of $350.0 million principal amount of the Operating Partnership’s 4.27% Senior Notes due January 31, 2031 (the “Notes”), pursuant to a private placement. The Notes mature on their due date, unless earlier redeemed or prepaid pursuant to the terms of the Note Purchase Agreement. Interest on the Notes is payable semi-annually in arrears on April 18 and October 18 of each year beginning October 18, 2020.

The Operating Partnership may, at its option and upon notice to the purchasers of the Notes, prepay at any time all, or from time to time, any part of the principal amount then outstanding (in an amount not less than 5% of the aggregate principal amount then outstanding in the case of a partial prepayment), at 100% of the principal amount so prepaid, plus the make-whole amount determined for the prepayment date with respect to such principal amount as set forth in the Note Purchase Agreement.

In connection with the issuance of the Notes, the Company entered into an agreement whereby it will guarantee the payment by the Operating Partnership of all amounts due with respect to the Notes and the performance by the Operating Partnership of its obligations under the Note Purchase Agreement.

Unsecured Revolving Credit Facility and Term Loan Facility

The following table summarizes the balance and terms of our unsecured revolving credit facility as of September 30, 2020 and December 31, 2019:

	September 30, 2020			December 31, 2019
	(in thousands)
Outstanding borrowings	$	—		$	245,000
Remaining borrowing capacity	750,000			505,000
Total borrowing capacity (1)	$	750,000		$	750,000
Interest rate (2)	1.15		%	2.76		%
Facility fee-annual rate (3)	0.200%
Maturity date	July 2022

________________________

(1) We may elect to borrow, subject to bank approval and obtaining commitments for any additional borrowing capacity, up to an additional $600.0 million under an accordion feature under the terms of the unsecured revolving credit facility and unsecured term loan facility.

(2) Our unsecured revolving credit facility interest rate was calculated based on the contractual rate of LIBOR plus 1.000% as of September 30, 2020 and December 31, 2019.

(3) Our facility fee is paid on a quarterly basis and is calculated based on the total borrowing capacity. In addition to the facility fee, we incurred debt origination and legal costs. As of September 30, 2020 and December 31, 2019, $2.4 million and $3.4 million of unamortized deferred financing costs, respectively, which are included in prepaid expenses and other assets, net on our consolidated balance sheets, remained to be amortized through the maturity date of our unsecured revolving credit facility.

The Company intends to borrow under the unsecured revolving credit facility from time to time for general corporate purposes, to finance development and redevelopment expenditures, to fund potential acquisitions, to potentially repay long-term debt and to supplement cash balances given uncertainties and volatility in market conditions.

In August 2020, the Company repaid in full the $150.0 million unsecured term loan facility. The following table summarizes the balance and terms of our unsecured term loan facility as of December 31, 2019:

	December 31, 2019
	(in thousands)
Outstanding borrowings	$	150,000
Remaining borrowing capacity	—
Total borrowing capacity (1)	$	150,000
Interest rate (2)	2.85		%
Undrawn facility fee-annual rate	0.200		%
Maturity date	July 2022

________________________

(1) As of December 31, 2019, $0.7 million of unamortized deferred financing costs remained to be amortized through the maturity date of our unsecured term loan facility.

(2) Our unsecured term loan facility interest rate was calculated based on the contractual rate of LIBOR plus 1.100% as of December 31, 2019.

Debt Covenants and Restrictions

The unsecured revolving credit facility, the unsecured term loan facility, the unsecured senior notes, the Series A and B Notes due 2026, Series A and B Notes due 2027 and 2029, and Notes due 2031 and certain other secured debt arrangements contain covenants and restrictions requiring us to meet certain financial ratios and reporting requirements. Some of the more restrictive financial covenants include a maximum ratio of total debt to total asset value, a minimum fixed-charge coverage ratio, a minimum unsecured debt ratio and a minimum unencumbered asset pool debt service coverage ratio. Noncompliance with one or more of the covenants and restrictions could result in the full principal balance of the associated debt becoming immediately due and payable. We believe we were in compliance with all of our debt covenants as of September 30, 2020.

Debt Maturities

The following table summarizes the stated debt maturities and scheduled amortization payments as of September 30, 2020:

Year	(in thousands)
Remaining 2020	$	1,304
2021	5,342
2022	5,554
2023	305,775
2024	431,006
2025	406,245
Thereafter	2,800,442
Total aggregate principal value (1)	$	3,955,668

________________________ 

(1) Includes gross principal balance of outstanding debt before the effect of the following at September 30, 2020: $23.3 million of unamortized deferred financing costs for the unsecured senior notes and secured debt and $8.5 million of unamortized discounts for the unsecured senior notes.

Capitalized Interest and Loan Fees

The following table sets forth gross interest expense, including debt discount/premium and deferred financing cost amortization, net of capitalized interest, for the three and nine months ended September 30, 2020 and 2019. The interest expense capitalized was recorded as a cost of development and increased the carrying value of undeveloped land and construction in progress.

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands)
Gross interest expense	$	38,807		$	32,220		$	111,069		$	95,507
Capitalized interest and deferred financing costs	(19,339		)	(20,585		)	(61,273		)	(60,902		)
Interest expense	$	19,468		$	11,635		$	49,796		$	34,605

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Stockholders' Equity of the Company

9 Months Ended

Sep. 30, 2020

Equity [Abstract]

Stockholders' Equity of the Company

Stockholders’ Equity of the Company

Increase in Authorized Shares

On May 19, 2020, the Company’s stockholders approved a proposal to amend and restate the Company’s charter to increase the number of authorized shares of common stock that the Company has the authority to issue from 150,000,000 shares to 280,000,000 shares.

Forward Equity Offering and Settlement

On February 18, 2020, the Company entered into forward equity sale agreements with certain financial institutions acting as forward purchasers in connection with an offering of 5,750,000 shares of common stock at an initial gross offering price of $494.5 million, or $86.00 per share, before underwriting discounts, commissions and offering expenses. The forward purchasers borrowed and sold an aggregate of 5,750,000 shares of common stock in the offering. The Company did not receive any proceeds from the sale of its shares of common stock by the forward purchasers at the time of the offering.

On March 25, 2020, the Company physically settled these forward equity sale agreements. Upon settlement, the Company issued 5,750,000 shares of common stock for net proceeds of $474.9 million and contributed the net proceeds to the Operating Partnership in exchange for an equal number of units in the Operating Partnership.

At-The-Market Stock Offering Program

Under our at-the-market stock offering program, which commenced in June 2018, we may offer and sell shares of our common stock having an aggregate gross sales price up to $500.0 million from time to time in “at-the-market” offerings. In connection with our at-the-market program, the Company may enter into forward equity sale agreements with certain financial institutions acting as forward purchasers whereby, at our discretion, the forward purchasers may borrow and sell shares of our common stock under our at-the-market program. The use of a forward equity sale agreement allows the Company to lock in a share price on the sale of shares of our common stock at the time the agreement is executed but defer settling the forward equity sale agreements and receiving the proceeds from the sale of shares until a later date.

During the year ended December 31, 2019, the Company executed various 12-month forward equity sale agreements under our at-the-market program with financial institutions acting as forward purchasers to sell an aggregate of 3,147,110 shares of common stock at a weighted average sales price of $80.08 per share before commissions and offering expenses. The Company did not receive any proceeds from the sale of its shares of common stock by the forward purchasers at the time of sale.

In March 2020, the Company physically settled all forward equity sale agreements entered into in 2019. Upon settlement, the Company issued 3,147,110 shares of common stock for net proceeds of $247.3 million and contributed the net proceeds to the Operating Partnership in exchange for an equal number of units in the Operating Partnership. We did not enter into any forward equity sale agreements under our at-the-market program during the nine months ended September 30, 2020.

Since commencement of our current at-the-market program, we have completed sales of 3,594,576 shares of common stock through September 30, 2020. As of September 30, 2020, we may offer and sell shares of our common stock having an aggregate gross sales price up to approximately $214.2 million under our current at-the-market program.

The Company did not complete any direct sales of common stock under the program during the three or nine months ended September 30, 2020. The following table sets forth information regarding settlements of forward equity sale agreements under our at-the-market offering program for the nine months ended September 30, 2020:

	Nine Months Ended September 30, 2020
	(in millions, except share and per share data)
Shares of common stock settled during the period	3,147,110
Weighted average price per share of common stock	$	80.08
Aggregate gross proceeds	$	252.0
Aggregate net proceeds after selling commissions	$	247.3

The proceeds from sales will be used to fund development expenditures and general corporate purposes. Actual future sales will depend upon a variety of factors, including but not limited to, market conditions, the trading price of the Company’s common stock and our capital needs. We have no obligation to sell the remaining shares available for sale under this program.

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Noncontrolling Interests on the Company's Consolidated Financial Statements

9 Months Ended

Sep. 30, 2020

Noncontrolling Interest [Abstract]

Noncontrolling Interests on the Company's Consolidated Financial Statements

Noncontrolling Interests on the Company’s Consolidated Financial Statements

Common Units of the Operating Partnership

The Company owned an approximate 98.4%, 98.1%, and 98.1% common general partnership interest in the Operating Partnership as of September 30, 2020, December 31, 2019 and September 30, 2019, respectively. The remaining approximate 1.6%, 1.9%, and 1.9% common limited partnership interest as of September 30, 2020, December 31, 2019 and September 30, 2019, respectively, was owned by non-affiliated investors and certain of our executive officers and directors in the form of noncontrolling common units. There were 1,931,574, 2,023,287 and 2,023,287 common units outstanding held by these investors, executive officers and directors as of September 30, 2020, December 31, 2019 and September 30, 2019, respectively.

The noncontrolling common units may be redeemed by unitholders for cash. Except under certain circumstances, we, at our option, may satisfy the cash redemption obligation with shares of the Company’s common stock on a one-for-one basis. If satisfied in cash, the value for each noncontrolling common unit upon redemption is the amount equal to the average of the closing quoted price per share of the Company’s common stock, par value $.01 per share, as reported on the NYSE for the ten trading days immediately preceding the applicable redemption date. The aggregate value upon redemption of the then-outstanding noncontrolling common units was $102.2 million and $167.7 million as of September 30, 2020 and December 31, 2019, respectively. This redemption value does not necessarily represent the amount that would be distributed with respect to each noncontrolling common unit in the event of our termination or liquidation. In the event of our termination or liquidation, it is expected in most cases that each common unit would be entitled to a liquidating distribution equal to the liquidating distribution payable in respect of each share of the Company’s common stock.

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Partners' Capital of the Operating Partnership

9 Months Ended

Sep. 30, 2020

Partners' Capital Notes [Abstract]

Partners’ Capital of the Operating Partnership

Partners’ Capital of the Operating Partnership

Common Units Outstanding

The following table sets forth the number of common units held by the Company and the number of common units held by non-affiliated investors and certain of our executive officers and directors in the form of noncontrolling common units as well as the ownership interest held on each respective date:

	September 30, 2020		December 31, 2019		September 30, 2019
Company owned common units in the Operating Partnership	115,247,221		106,016,287		106,011,916
Company owned general partnership interest	98.4	%	98.1	%	98.1	%
Noncontrolling common units of the Operating Partnership	1,931,574		2,023,287		2,023,287
Ownership interest of noncontrolling interest	1.6	%	1.9	%	1.9	%

For further discussion of the noncontrolling common units as of September 30, 2020 and December 31, 2019, refer to Note 5.

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Share-Based Compensation

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Share-Based Compensation

Share-Based Compensation

Stockholder Approved Share-Based Incentive Compensation Plan

As of September 30, 2020, we maintained one share-based incentive compensation plan, the Kilroy Realty 2006 Incentive Award Plan, as amended (the “2006 Plan”). The Company has a currently effective registration statement registering 10.7 million shares of our common stock for possible issuance under our 2006 Plan. As of September 30, 2020, approximately 1.6 million shares were available for grant under the 2006 Plan. The calculation of shares available for grant is presented after taking into account a reserve for a sufficient number of shares to cover the vesting and payment of 2006 Plan awards that were outstanding on that date, including performance-based vesting awards at (i) levels actually achieved for the performance conditions (as defined below) for which the performance period has been completed and (ii) at maximum levels for the other performance and market conditions (as defined below) for awards still in a performance period.

2020 Share-Based Compensation Grants

In January 2020, the Executive Compensation Committee of the Company’s Board of Directors awarded 263,626 restricted stock units (“RSUs”) to certain officers of the Company under the 2006 Plan, which included 154,267 RSUs (at the target level of performance) that are subject to market and/or performance-based vesting requirements (the “2020 Performance-Based RSUs”) and 109,359 RSUs that are subject to time-based vesting requirements (the “2020 Time-Based RSUs”). During the nine months ended September 30, 2020, 5,148 of the 2020 Time-Based RSUs were forfeited and 12,263 of the 2020 Performance-Based RSUs were forfeited.

2020 Performance-Based RSU Grant

The 2020 Performance-Based RSUs are scheduled to vest at the end of a three year period (consisting of calendar years 2020-2022). A target number of 2020 Performance-Based RSUs were awarded, and the final number of 2020 Performance-Based RSUs that vest (which may be more or less than the target number) will be based upon (1) the achievement of pre-set FFO per share goals for the year ending December 31, 2020 that applies to 100% of the Performance-Based RSUs awarded (the “FFO performance condition”) and (2) a performance measure that applies to 50% of the award based upon a measure of the Company’s average debt to EBITDA ratio for the three year performance period (the “debt to EBITDA ratio performance condition”) and a market measure that applies to the other 50% of the award based upon the relative ranking of the Company’s total stockholder return for the three year performance period compared to the total stockholder returns of an established comparison group of companies over the same period (the “market condition”). The 2020 Performance-Based RSUs are also subject to a three year service vesting provision (the “service vesting condition”) and are scheduled to cliff vest on the date the final vesting percentage is determined following the end of the three year performance period under the awards. The number of 2020 Performance-Based RSUs ultimately earned could fluctuate from the target number of 2020 Performance-Based RSUs granted based upon the levels of achievement for the FFO performance condition, the debt to EBITDA ratio performance condition, the market condition, and the extent to which the service vesting condition is satisfied. The estimate of the number of 2020 Performance-Based RSUs earned is evaluated quarterly during the performance period based on our estimate for each of the performance conditions measured against the applicable goals. During the nine months ended September 30, 2020, we recognized $3.2 million of compensation expense for the 2020 Performance-Based RSU grant. In the event we achieve a lower level of performance or fail to meet the FFO performance condition, we would reverse a portion or all of the $3.2 million of compensation expense in the fourth quarter of 2020. Compensation expense for the 2020 Performance-Based RSU grant is recognized on a straight-line basis over the requisite service period for each participant, which is generally the three year service vesting period.

Each 2020 Performance-Based RSU represents the right, subject to the applicable vesting conditions, to receive one share of our common stock in the future. The determination of the grant date fair value of the portion of the 2020 Performance-Based RSU grants covered by the debt to EBITDA ratio performance condition was based on the $82.57 share price on the January 31, 2020 grant date. The determination of the grant date fair value of the portion of the 2020 Performance-Based RSU grants covered by the market condition was calculated using a Monte Carlo simulation pricing model based on the assumptions in the table below, which resulted in a $84.54 grant date fair value per share.

	Fair Value Assumptions
Valuation date	January 31, 2020
Expected share price volatility	17.0%
Risk-free interest rate	1.35%
Fair value per share on valuation date (1)	$84.54

________________________

(1) Using the same Monte Carlo methodology and assumptions, the grant date fair value of one participant’s 2020 Performance-Based RSU grants was calculated as $85.52 per share.

The computation of expected volatility is based on a blend of the historical volatility of our shares of common stock over approximately 5.8 years, as that is expected to be most consistent with future volatility and equates to a time period twice as long as the approximate 2.9-year performance period of the RSUs, and implied volatility data based on the observed pricing of six month publicly-traded options on our shares of common stock. The risk-free interest rate is based on the yield curve on zero-coupon U.S. Treasury STRIP securities in effect at January 31, 2020.

The total grant date fair value of the 2020 Performance-Based RSU awards was $12.9 million on the January 31, 2020 grant date of the awards. For the three and nine months ended September 30, 2020, we recorded compensation expense based upon the grant date fair value per share for each component multiplied by the estimated number of RSUs to be earned.

2020 Time-Based RSU Grant

The 2020 Time-Based RSUs are scheduled to vest in three equal annual installments beginning on January 5, 2021 through January 5, 2023. Compensation expense for the 2020 Time-Based RSUs is recognized on a straight-line basis over the requisite service period for each participant, which is generally the three year service vesting period. Each 2020 Time-Based RSU represents the right to receive one share of our common stock in the future. The total grant date fair value of the 2020 Time-Based RSU awards was $9.0 million, which was based on the $82.57 closing share price of the Company’s common stock on the NYSE on the January 31, 2020 grant date of the awards.

2019 and 2018 Performance-Based RSUs

Total compensation cost for 2019 and 2018 performance-based RSUs for the three and nine months ended September 30, 2020 assumes the 2019 and 2018 debt to EBITDA ratio performance conditions are met at the maximum level of achievement.

Share-Based Compensation Cost Recorded During the Period

Share-based compensation costs for the three and nine months ended September 30, 2020 include $0.2 million and $4.5 million, respectively, of accelerated share-based compensation costs related to severance packages, including for the departure of an executive officer. The total compensation cost for all share-based compensation programs was $7.8 million and $6.8 million for the three months ended September 30, 2020 and 2019, respectively, and $30.0 million and $24.4 million for the nine months ended September 30, 2020 and 2019, respectively. Of the total share-based compensation costs, $1.8 million and $5.7 million was capitalized as part of real estate assets for the three and nine months ended September 30, 2020 and $0.7 million and $4.2 million was capitalized as part of real estate assets for the three and nine months ended September 30, 2019, respectively. As of September 30, 2020, there was approximately $42.6 million of total unrecognized compensation cost related to nonvested incentive awards granted under share-based compensation arrangements that is expected to be recognized over a weighted-average period of 1.6 years. The remaining compensation cost related to these nonvested incentive awards had been recognized in periods prior to September 30, 2020.

Severance Compensation

For the nine months ended September 30, 2020, compensation costs included in general and administrative expenses on our consolidated statements of operations include $14.1 million of cash severance costs related to the departure of an executive officer, in addition to the accelerated share-based compensation costs noted in the paragraph above.

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Rental Income and Future Minimum Rent

9 Months Ended

Sep. 30, 2020

Leases [Abstract]

Rental Income and Future Minimum Rent

Rental Income and Future Minimum Rent

Our rental income is primarily comprised of payments defined under leases and are either subject to scheduled fixed increases or adjustments in rent based on the Consumer Price Index. Additionally, rental income includes variable payments for tenant reimbursements of property-related expenses and payments based on a percentage of tenant’s sales.

Under ASC Topic 842, we must perform a binary assessment of whether or not substantially all of the amounts due under a

tenant’s lease agreement are probable of collection. Such assessment involves using a methodology that incorporates a specific identification analysis and an aging analysis and considers the current economic and business environment. This determination requires significant judgment and estimates about matters that are uncertain at the time the estimates are made, including the creditworthiness of specific tenants, specific industry trends and conditions, and general economic trends and conditions. For leases that are deemed probable of collection, revenue continues to be recorded on a straight-line basis over the lease term. For leases that are deemed not probable of collection, revenue is recorded as the lesser of (i) the amount which would be recognized on a straight-line basis or (ii) cash that has been received from the tenant, with any tenant and deferred rent receivable balances charged as a direct write-off against rental income in the period of the change in the collectability determination.

For tenant and deferred rent receivables associated with leases whose rents are deemed probable of collection under Topic 842, we may record an allowance under other authoritative GAAP using a methodology that incorporates a specific identification analysis and an aging analysis and considers the current economic and business environment. This determination requires significant judgment and estimates about matters that are uncertain at the time the estimates are made, including the creditworthiness of specific tenants, specific industry trends and conditions, and general economic trends and conditions. Tenant and deferred rent receivables deemed probable of collection are carried net of allowances for uncollectible accounts, with increases or decreases in the allowances recorded through rental income on our consolidated statements of operations.

The table below sets forth the allocation of rental income between fixed and variable payments and collectability reversals or recoveries for the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands)
Fixed lease payments	$	197,295		$	181,994		$	585,257		$	524,174
Variable lease payments	31,650			30,470			93,059			82,654
Collectability (reversals) recoveries (1)	(1,823		)	(143		)	(14,205		)	2,504
Total rental income	$	227,122		$	212,321		$	664,111		$	609,332

______________

(1) Represents adjustments to rental income related to our assessment of the collectability of amounts due under leases with our tenants. For the three and nine months ended September 30, 2020, includes a reduction in revenue of $1.8 million and $14.2 million, respectively, primarily as a result of the COVID-19 pandemic.

We have operating leases with tenants that expire at various dates through 2044. Generally, the leases grant tenants renewal options. Future contractual minimum rent under operating leases as of September 30, 2020 for future periods is summarized as follows:

Year Ending	(in thousands)
Remaining 2020	$	174,957
2021	729,823
2022	804,938
2023	790,212
2024	748,183
2025	716,941
Thereafter	3,453,142
Total (1)	$	7,418,196

______________

(1)

Excludes residential leases and leases with a term of one year or less.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2020

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

General

As of September 30, 2020, we had commitments of approximately $737.4 million, excluding our ground lease commitments, for contracts and executed leases directly related to our operating and development properties.

Ground Leases

The following table summarizes our properties that are held subject to long-term noncancellable ground lease obligations and the respective contractual expiration dates:

Property	Contractual Expiration Date (1)
601 108th Ave NE, Bellevue, WA	November 2093
701, 801 and 837 N. 34th Street, Seattle, WA (2)	December 2041
1701 Page Mill Road and 3150 Porter Drive, Palo Alto, CA	December 2067
Kilroy Airport Center Phases I, II, and III, Long Beach, CA	July 2084
3243 S. La Cienega Boulevard, Los Angeles, CA	October 2106

____________________

(1) Reflects the contractual expiration date prior to the impact of any extension or purchase options held by the Company.

(2) The Company has three 10-year and one 45-year extension options for this ground lease, which if exercised would extend the expiration date to December 2116. These extension options are not assumed to be exercised in our calculation of the present value of the future minimum lease payments for this lease.

To determine the discount rates used to calculate the present value of the minimum future lease payments for our ground leases, we used a hypothetical curve derived from unsecured corporate borrowing rates over the lease term. The weighted average discount rate used to determine the present value of our minimum lease payments was 5.11%. As of September 30, 2020, the weighted average remaining lease term of our ground leases is 54 years. For the three months ended September 30, 2020 and 2019, variable lease costs totaling $0.7 million and $0.7 million, respectively, were recorded to ground lease expense on our consolidated statements of operations. For the nine months ended September 30, 2020 and 2019, variable lease costs totaling $2.4 million and $2.3 million, respectively, were recorded to ground leases expense on our consolidated statements of operations.

The minimum commitment under our ground leases as of September 30, 2020 for future periods is summarized as follows:

Year Ending	(in thousands)
Remaining 2020	$	1,411
2021	5,641
2022	5,642
2023	5,662
2024	5,662
2025	5,662
Thereafter	280,723
Total undiscounted cash flows (1)(2)(3)(4)(5)(6)	310,403
Present value discount	(212,467		)
Ground lease liabilities	$	97,936

________________________

(1) Excludes contingent future rent payments based on gross income or adjusted gross income and reflects the minimum ground lease obligations before the impact of ground lease extension options.

(2) One of our ground lease obligations is subject to a fair market value adjustment every five years; however, the lease includes ground rent subprotection and infrastructure rent credits which currently limit our annual rental obligations to $1.0 million. The contractual obligations for that ground lease included above assumes the lesser of $1.0 million or annual lease rental obligation in effect as of September 30, 2020.

(3) One of our ground lease obligations includes a component which is based on the percentage of gross income that exceeds the minimum ground rent. The minimum rent is subject to increases every five years based on 50% of the average annual percentage rent for the previous five years. The contractual obligations for that lease included above assume the current annual ground lease obligation in effect at September 30, 2020 for the remainder of the lease term since we cannot predict future adjustments.

(4) One of our ground lease obligations is subject to a fair market value adjustment every five years based on a combination of CPI adjustments and third-party appraisals limited to maximum increases annually. The contractual obligations for that lease included above assume the current annual ground lease obligation in effect at September 30, 2020 for the remainder of the lease term since we cannot predict future adjustments.

(5) One of our ground lease obligations includes a component which is based on the percentage of adjusted gross income that exceeds the minimum ground rent. The minimum rent is subject to increases every ten years by an amount equal to 60% of the average annual percentage rent for the previous three years. The contractual obligations for this lease included above assume the current annual ground lease obligation in effect at September 30, 2020 for the remainder of the lease term since we cannot predict future adjustments.

(6) One of our ground lease obligations is subject to fixed 5% ground rent increases every five years, with the next increase occurring on December 1, 2022.

Environmental Matters

We follow the policy of monitoring all of our properties, including acquisition, development and existing stabilized portfolio properties, for the presence of hazardous or toxic substances. While there can be no assurance that a material environmental liability does not exist, we are not currently aware of any environmental liability with respect to our stabilized portfolio properties that would have a material adverse effect on our financial condition, results of operations and cash flow, or that we believe would require additional disclosure or the recording of a loss contingency.

As of September 30, 2020, we had accrued environmental remediation liabilities of approximately $72.0 million recorded on our consolidated balance sheets in connection with certain of our in-process and future development projects. The accrued environmental remediation liabilities represent the remaining costs we estimate we will incur prior to and during the development process at various development acquisition sites. These estimates, which we developed with the assistance of third party experts, consist primarily of the removal of contaminated soil, performing environmental closure activities, constructing remedial systems and other related costs since we are required to dispose of any existing contaminated soil and sometimes perform other environmental closure or remedial activities when we develop new buildings at these sites.

We record estimated environmental remediation obligations for acquired properties at the acquisition date when we are aware of such costs and when such costs are probable of being incurred and can be reasonably estimated. Estimated costs related to development environmental remediation liabilities are recorded as an increase to the cost of the development project. Actual costs are recorded as a decrease to the liability when incurred. These accruals are adjusted as an increase or decrease to the development project costs and as an increase or decrease to the accrued environmental remediation liability if we obtain further information or circumstances change. The environmental remediation obligations recorded at September 30, 2020 were not discounted to their present values since the amount and timing of cash payments are not fixed. It is possible that we could incur additional environmental remediation costs in connection with these development projects.  However, potential additional environmental costs for these development projects cannot be reasonably estimated at this time and certain changes in estimates could occur as the site conditions, final project timing, design elements, actual soil conditions and other aspects of the projects, which may depend upon municipal and other approvals beyond the control of the Company, are determined.

Other than the accrued environmental liabilities discussed above, we are not aware of any unasserted claims and assessments with respect to an environmental liability that we believe would require additional disclosure or the recording of an additional loss contingency.

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Fair Value Measurements and Disclosures

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Fair Value Measurements and Disclosures

Fair Value Measurements and Disclosures

Assets and Liabilities Reported at Fair Value

The only assets we record at fair value on our consolidated financial statements are the marketable securities related to our Deferred Compensation Plan. The following table sets forth the fair value of our marketable securities as of September 30, 2020 and December 31, 2019:

	Fair Value (Level 1) (1)
	September 30, 2020		December 31, 2019
Description	(in thousands)
Marketable securities (2)	$	25,073	$	27,098

________________________

(1) Based on quoted prices in active markets for identical securities.

(2) The marketable securities are held in a limited rabbi trust.

We report the change in the fair value of the marketable securities at the end of each accounting period in interest income and other net investment gain (loss) in the consolidated statements of operations.

We also adjust the related Deferred Compensation Plan liability to fair value at the end of each accounting period based on the performance of the benchmark funds selected by each participant, which results in a corresponding increase or decrease to compensation cost included in general and administrative expenses on our consolidated statements of operations for the period.

The following table sets forth the net gain on marketable securities recorded during the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Description	(in thousands)				(in thousands)
Net gain on marketable securities	$	1,658	$	673	$	1,094	$	2,898

Financial Instruments Disclosed at Fair Value

The following table sets forth the carrying value and the fair value of our other financial instruments as of September 30, 2020 and December 31, 2019:

	September 30, 2020				December 31, 2019
	Carrying Value		Fair Value (1)		Carrying Value		Fair Value (1)
	(in thousands)
Liabilities
Secured debt, net	$	254,854	$	268,518	$	258,593	$	272,997
Unsecured debt, net	$	3,668,976	$	4,024,194	$	3,049,185	$	3,252,217
Unsecured line of credit	$	—	$	—	$	245,000	$	245,195

________________________

(1)

Fair value calculated using Level II inputs, which are based on model-derived valuations in which significant inputs and significant value drivers are observable in active markets.

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Net Income Available to Common Stockholders Per Share of the Company

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Net Income Available to Common Stockholders Per Share of the Company

Net Income Available to Common Stockholders Per Share of the Company

The following table reconciles the numerator and denominator in computing the Company’s basic and diluted per-share computations for net income available to common stockholders for the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	49,028		$	43,846		$	108,463		$	122,943
Allocation to participating securities (1)	(572		)	(530		)	(1,657		)	(1,582		)
Numerator for basic and diluted net income available to common stockholders	$	48,456		$	43,316		$	106,806		$	121,361
Denominator:
Basic weighted average vested shares outstanding	115,226,324			104,841,176			112,405,817			102,252,739
Effect of dilutive securities	441,333			518,728			470,058			619,697
Diluted weighted average vested shares and common stock equivalents outstanding	115,667,657			105,359,904			112,875,875			102,872,436
Basic earnings per share:
Net income available to common stockholders per share	$	0.42		$	0.41		$	0.95		$	1.19
Diluted earnings per share:
Net income available to common stockholders per share	$	0.42		$	0.41		$	0.95		$	1.18

________________________ 

(1) Participating securities include nonvested shares, certain time-based RSUs and vested market measure-based RSUs.

Share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are considered participating securities. The impact of potentially dilutive common shares, including stock options, RSUs and other securities are considered in our diluted earnings per share calculation for the three and nine months ended September 30, 2020 and 2019. Certain market measure-based RSUs are not included in dilutive securities for the three and nine months ended September 30, 2020 and 2019, as not all performance metrics had been met by the end of the applicable reporting periods. See Note 7 “Share-Based Compensation” for additional information regarding share-based compensation.

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Net Income Available to Common Unitholders Per Unit of the Operating Partnership

9 Months Ended

Sep. 30, 2020

Net Income Available To Common Unitholders [Line Items]

Net Income Available to Common Unitholders Per Unit of the Operating Partnership

Net Income Available to Common Stockholders Per Share of the Company

The following table reconciles the numerator and denominator in computing the Company’s basic and diluted per-share computations for net income available to common stockholders for the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	49,028		$	43,846		$	108,463		$	122,943
Allocation to participating securities (1)	(572		)	(530		)	(1,657		)	(1,582		)
Numerator for basic and diluted net income available to common stockholders	$	48,456		$	43,316		$	106,806		$	121,361
Denominator:
Basic weighted average vested shares outstanding	115,226,324			104,841,176			112,405,817			102,252,739
Effect of dilutive securities	441,333			518,728			470,058			619,697
Diluted weighted average vested shares and common stock equivalents outstanding	115,667,657			105,359,904			112,875,875			102,872,436
Basic earnings per share:
Net income available to common stockholders per share	$	0.42		$	0.41		$	0.95		$	1.19
Diluted earnings per share:
Net income available to common stockholders per share	$	0.42		$	0.41		$	0.95		$	1.18

________________________ 

(1) Participating securities include nonvested shares, certain time-based RSUs and vested market measure-based RSUs.

Share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are considered participating securities. The impact of potentially dilutive common shares, including stock options, RSUs and other securities are considered in our diluted earnings per share calculation for the three and nine months ended September 30, 2020 and 2019. Certain market measure-based RSUs are not included in dilutive securities for the three and nine months ended September 30, 2020 and 2019, as not all performance metrics had been met by the end of the applicable reporting periods. See Note 7 “Share-Based Compensation” for additional information regarding share-based compensation.

Kilroy Realty L.P. [Member]

Net Income Available To Common Unitholders [Line Items]

Net Income Available to Common Unitholders Per Unit of the Operating Partnership

Net Income Available to Common Unitholders Per Unit of the Operating Partnership

The following table reconciles the numerator and denominator in computing the Operating Partnership’s basic and diluted per-unit computations for net income available to common unitholders for the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands, except unit and per unit amounts)
Numerator:
Net income available to common unitholders	$	49,728		$	44,589		$	109,955		$	124,998
Allocation to participating securities (1)	(572		)	(530		)	(1,657		)	(1,582		)
Numerator for basic and diluted net income available to common unitholders	$	49,156		$	44,059		$	108,298		$	123,416
Denominator:
Basic weighted average vested units outstanding	117,158,160			106,864,463			114,394,706			104,276,187
Effect of dilutive securities	441,333			518,728			470,058			619,697
Diluted weighted average vested units and common unit equivalents outstanding	117,599,493			107,383,191			114,864,764			104,895,884
Basic earnings per unit:
Net income available to common unitholders per unit	$	0.42		$	0.41		$	0.95		$	1.18
Diluted earnings per unit:
Net income available to common unitholders per unit	$	0.42		$	0.41		$	0.94		$	1.18

________________________ 

(1) Participating securities include nonvested shares, certain time-based RSUs and vested market measure-based RSUs.

Share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are considered participating securities. The impact of potentially dilutive common units, including stock options, RSUs and other securities are considered in our diluted earnings per share calculation for the three and nine months ended September 30, 2020 and 2019. Certain market measure-based RSUs are not included in dilutive securities for the three and nine months ended September 30, 2020 and 2019, as not all performance metrics had been met by the end of the applicable reporting periods. See Note 7 “Share-Based Compensation” for additional information regarding share-based compensation.

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Supplemental Cash Flow Information of the Company

9 Months Ended

Sep. 30, 2020

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information of the Company

Supplemental Cash Flow Information of the Company

Supplemental cash flow information follows (in thousands):

	Nine Months Ended September 30,
	2020		2019
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $58,405 and $58,337 as of September 30, 2020 and 2019, respectively	$	35,898	$	28,139
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,686	$	3,917
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	154,253	$	148,468
Tenant improvements funded directly by tenants	$	9,118	$	10,254
Assumption of accrued liabilities in connection with acquisitions	$	—	$	3,967
Initial measurement of operating right of use ground lease assets	$	—	$	82,938
Initial measurement of operating ground lease liabilities	$	—	$	87,409
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders (Note 15)	$	59,416	$	53,205
Exchange of common units of the Operating Partnership into shares of the Company’s common stock	$	3,972	$	78

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2020 and 2019.

	Nine Months Ended September 30,
	2020		2019
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	60,044	$	51,604
Restricted cash at beginning of period	16,300		119,430
Cash and cash equivalents and restricted cash at beginning of period	$	76,344	$	171,034
Cash and cash equivalents at end of period	$	849,009	$	297,620
Restricted cash at end of period	16,300		6,300
Cash and cash equivalents and restricted cash at end of period	$	865,309	$	303,920

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Supplemental Cash Flow Information of the Operating Partnership

9 Months Ended

Sep. 30, 2020

Other Significant Noncash Transactions [Line Items]

Supplemental Cash Flow Information of the Operating Partnership

Supplemental Cash Flow Information of the Company

Supplemental cash flow information follows (in thousands):

	Nine Months Ended September 30,
	2020		2019
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $58,405 and $58,337 as of September 30, 2020 and 2019, respectively	$	35,898	$	28,139
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,686	$	3,917
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	154,253	$	148,468
Tenant improvements funded directly by tenants	$	9,118	$	10,254
Assumption of accrued liabilities in connection with acquisitions	$	—	$	3,967
Initial measurement of operating right of use ground lease assets	$	—	$	82,938
Initial measurement of operating ground lease liabilities	$	—	$	87,409
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders (Note 15)	$	59,416	$	53,205
Exchange of common units of the Operating Partnership into shares of the Company’s common stock	$	3,972	$	78

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2020 and 2019.

	Nine Months Ended September 30,
	2020		2019
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	60,044	$	51,604
Restricted cash at beginning of period	16,300		119,430
Cash and cash equivalents and restricted cash at beginning of period	$	76,344	$	171,034
Cash and cash equivalents at end of period	$	849,009	$	297,620
Restricted cash at end of period	16,300		6,300
Cash and cash equivalents and restricted cash at end of period	$	865,309	$	303,920

Kilroy Realty L.P. [Member]

Other Significant Noncash Transactions [Line Items]

Supplemental Cash Flow Information of the Operating Partnership

Supplemental Cash Flow Information of the Operating Partnership:

Supplemental cash flow information follows (in thousands):

	Nine Months Ended September 30,
	2020		2019
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $58,405 and $58,337 as of September 30, 2020 and 2019, respectively	$	35,898	$	28,139
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,686	$	3,917
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	154,253	$	148,468
Tenant improvements funded directly by tenants	$	9,118	$	10,254
Assumption of accrued liabilities in connection with acquisitions	$	—	$	3,967
Initial measurement of operating right of use ground lease assets	$	—	$	82,938
Initial measurement of operating ground lease liabilities	$	—	$	87,409
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders (Note 15)	$	59,416	$	53,205

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2020 and 2019.

	Nine Months Ended September 30,
	2020		2019
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	60,044	$	51,604
Restricted cash at beginning of period	16,300		119,430
Cash and cash equivalents and restricted cash at beginning of period	$	76,344	$	171,034
Cash and cash equivalents at end of period	$	849,009	$	297,620
Restricted cash at end of period	16,300		6,300
Cash and cash equivalents and restricted cash at end of period	$	865,309	$	303,920

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Subsequent Events

9 Months Ended

Sep. 30, 2020

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

On October 14, 2020, aggregate dividends, distributions and dividend equivalents of $59.4 million were paid to common stockholders, common unitholders and RSU holders of record on September 30, 2020.

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Organization, Ownership and Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Consolidation policy

The consolidated financial statements of the Company include the consolidated financial position and results of operations of the Company, the Operating Partnership, 303 Second LLC, 100 First LLC, Redwood LLC and all of our wholly-owned and controlled subsidiaries. The consolidated financial statements of the Operating Partnership include the consolidated financial position and results of operations of the Operating Partnership, 303 Second LLC, 100 First LLC, Redwood LLC and all of our wholly-owned and controlled subsidiaries. All intercompany balances and transactions have been eliminated in the consolidated financial statements.

Basis of accounting

The accompanying interim financial statements have been prepared by management in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and in conjunction with the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, the interim financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, the accompanying interim financial statements reflect all adjustments of a normal and recurring nature that are considered necessary for a fair presentation of the results for the interim periods presented. However, the results of operations for the interim periods are not necessarily indicative of the results that may be expected for the year ending December 31, 2020. The interim financial statements for the Company and the Operating Partnership should be read in conjunction with the audited consolidated financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2019.

New accounting pronouncements

Accounting Pronouncements Adopted January 1, 2020

ASU No. 2016-13 “Financial Instruments - Credit Losses (Topic 326)”

Effective January 1, 2020, we adopted Financial Accounting Standards Board (“FASB”) FASB Accounting Standards Update (“ASU”) No. 2016-13 (“ASU 2016-13”), which amends the accounting for credit losses for certain financial instruments. Under the new guidance, an entity recognizes its estimate of expected credit losses as an allowance, which the FASB believes will result in more timely recognition of such losses.  In November 2018, the FASB released ASU No. 2018-19 “Codification Improvements to Topic 326, Financial Instruments - Credit Losses.” This ASU clarifies that receivables arising from operating leases are not within the scope of Subtopic 326-20 “Financial Instruments – Credit Losses.” Instead, impairment of receivables arising from operating leases should be accounted for under Subtopic 842-30 “Leases – Lessor.” The adoption did not have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

ASU No. 2018-13 “Fair Value Measurement (Topic 820)”

Effective January 1, 2020, we adopted FASB ASU No. 2018-13 (“ASU 2018-13”), which amends the disclosure requirements for fair value measurements. The amendments in ASU 2018-13 include new, modified and eliminated disclosure requirements and are the result of a broader disclosure project called FASB Concepts Statement, Conceptual Framework for Financial Reporting - Chapter 8: Notes to Financial Statements (the “Concepts Statement”), which the FASB finalized on August 28, 2018. The FASB used the guidance in the Concepts Statement to improve the effectiveness of Topic 820’s disclosure requirements. The adoption did not have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

ASU No. 2018-15 “Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40)”

Effective January 1, 2020, we adopted FASB ASU No. 2018-15 (“ASU 2018-15”), which amends a customer’s accounting for implementation costs incurred in a cloud computing arrangement that is a service contract. ASU 2018-15 aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The adoption did not have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

COVID-19 Pandemic

The global impact of the COVID-19 pandemic continues to evolve rapidly and, as cases of the illness caused by the virus have continued to be identified in additional countries, many countries, including the United States, have reacted by instituting or re-instituting quarantines and restrictions on travel. In addition, all the states where we own properties and/or have development projects (i.e., California and Washington), have reacted to the COVID-19 pandemic by instituting quarantines, restrictions on travel, “shelter in place” rules, restrictions on types of business that may continue to operate and/or restrictions on types of construction projects that may continue.

COVID-19 Lease Modification Accounting Relief

Due to the business disruptions and challenges severely affecting the global economy caused by the COVID-19 pandemic, many lessors may be required to provide rent deferrals and other lease concessions to lessees. While the lease modification guidance in Accounting Standards Codification (“ASC”) Topic 842 (“Topic 842”) addresses routine changes to lease terms resulting from negotiations between the lessee and the lessor, this guidance did not contemplate concessions being so rapidly executed to address the sudden liquidity constraints of some lessees arising from the COVID-19 pandemic and restrictions intended to prevent its spread.

In April 2020, the FASB staff issued a question and answer document (the “Lease Modification Q&A”) focused on the application of lease accounting guidance to lease concessions provided as a result of the COVID-19 pandemic. Under existing lease guidance, the Company would have to determine, on a lease by lease basis, if a lease concession was the result of a new arrangement reached with the tenant (treated within the lease modification accounting framework) or if a lease concession was under the enforceable rights and obligations within the existing lease agreement (precluded from applying the lease modification accounting framework). The Lease Modification Q&A allows the Company, if certain criteria have been met, to bypass the lease by lease analysis, and instead elect to either apply the lease modification accounting framework or not, with such election applied consistently to leases with similar characteristics and similar circumstances. The Company has elected to apply such relief and availed itself of the election to avoid performing a lease by lease analysis. In addition, the Company has elected to apply the lease modification accounting framework consistently to leases within the property types in which it invests, specifically office, residential and retail properties.

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Organization, Ownership and Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of real estate properties

As of September 30, 2020, the following properties were excluded from our stabilized portfolio. We did not have any redevelopment properties or properties held for sale at September 30, 2020.

	Number of Properties/Projects	Estimated Rentable Square Feet (1) / Units
In-process development projects - tenant improvement	4	1,435,000
In-process development projects - under construction (2)	3	856,000
Completed residential development project (3)	1	608 units

________________________

(1) Estimated rentable square feet upon completion.

(2) In addition to the estimated office and life science rentable square feet noted above, development projects under construction also include 193 residential units.

(3)

Represents all three recently completed residential phases of our mixed-use development in San Diego, California that are not yet stabilized.

Our stabilized portfolio of operating properties was comprised of the following properties at September 30, 2020:

	Number of Buildings	Rentable Square Feet	Number of Tenants	Percentage  Occupied		Percentage Leased
Stabilized Office Properties (1)	114	14,329,607	461	92.2	%	95.5	%

________________________

(1) Includes stabilized retail space.

	Number of Buildings	Number of Units	2020 Average Occupancy
Stabilized Residential Property	1	200	87.8	%

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Prepaid Expenses and Other Assets, Net (Tables)

9 Months Ended

Sep. 30, 2020

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Prepaid expenses and other assets, net

Prepaid expenses and other assets, net consisted of the following at September 30, 2020 and December 31, 2019:

	September 30, 2020		December 31, 2019
	(in thousands)
Furniture, fixtures and other long-lived assets, net	$	42,899	$	35,286
Prepaid expenses	12,807		18,724
Note receivable (1)	—		1,651
Total prepaid expenses and other assets, net	$	55,706	$	55,661

________________________

(1) During the nine months ended September 30, 2020, the balance of the note receivable was written-off and the note receivable was placed on non-accrual status. We do not recognize interest income on non-accrual financing receivables. As of December 31, 2019 the note receivable was shown net of a valuation allowance of approximately $3.6 million.

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Secured and Unsecured Debt of the Operating Partnership (Tables) - Kilroy Realty L.P. [Member]

9 Months Ended

Sep. 30, 2020

Debt Instrument [Line Items]

Unsecured revolving credit facility

The following table summarizes the balance and terms of our unsecured revolving credit facility as of September 30, 2020 and December 31, 2019:

	September 30, 2020			December 31, 2019
	(in thousands)
Outstanding borrowings	$	—		$	245,000
Remaining borrowing capacity	750,000			505,000
Total borrowing capacity (1)	$	750,000		$	750,000
Interest rate (2)	1.15		%	2.76		%
Facility fee-annual rate (3)	0.200%
Maturity date	July 2022

________________________

(1) We may elect to borrow, subject to bank approval and obtaining commitments for any additional borrowing capacity, up to an additional $600.0 million under an accordion feature under the terms of the unsecured revolving credit facility and unsecured term loan facility.

(2) Our unsecured revolving credit facility interest rate was calculated based on the contractual rate of LIBOR plus 1.000% as of September 30, 2020 and December 31, 2019.

(3) Our facility fee is paid on a quarterly basis and is calculated based on the total borrowing capacity. In addition to the facility fee, we incurred debt origination and legal costs. As of September 30, 2020 and December 31, 2019, $2.4 million and $3.4 million of unamortized deferred financing costs, respectively, which are included in prepaid expenses and other assets, net on our consolidated balance sheets, remained to be amortized through the maturity date of our unsecured revolving credit facility.

The following table summarizes the balance and terms of our unsecured term loan facility as of December 31, 2019:

	December 31, 2019
	(in thousands)
Outstanding borrowings	$	150,000
Remaining borrowing capacity	—
Total borrowing capacity (1)	$	150,000
Interest rate (2)	2.85		%
Undrawn facility fee-annual rate	0.200		%
Maturity date	July 2022

________________________

(1) As of December 31, 2019, $0.7 million of unamortized deferred financing costs remained to be amortized through the maturity date of our unsecured term loan facility.

(2) Our unsecured term loan facility interest rate was calculated based on the contractual rate of LIBOR plus 1.100% as of December 31, 2019.

Schedule of debt maturities

The following table summarizes the stated debt maturities and scheduled amortization payments as of September 30, 2020:

Year	(in thousands)
Remaining 2020	$	1,304
2021	5,342
2022	5,554
2023	305,775
2024	431,006
2025	406,245
Thereafter	2,800,442
Total aggregate principal value (1)	$	3,955,668

________________________ 

(1)

Includes gross principal balance of outstanding debt before the effect of the following at September 30, 2020: $23.3 million of unamortized deferred financing costs for the unsecured senior notes and secured debt and $8.5 million of unamortized discounts for the unsecured senior notes.

Capitalized interest and loan fees

The following table sets forth gross interest expense, including debt discount/premium and deferred financing cost amortization, net of capitalized interest, for the three and nine months ended September 30, 2020 and 2019. The interest expense capitalized was recorded as a cost of development and increased the carrying value of undeveloped land and construction in progress.

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands)
Gross interest expense	$	38,807		$	32,220		$	111,069		$	95,507
Capitalized interest and deferred financing costs	(19,339		)	(20,585		)	(61,273		)	(60,902		)
Interest expense	$	19,468		$	11,635		$	49,796		$	34,605

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Stockholders' Equity of the Company (Tables)

9 Months Ended

Sep. 30, 2020

Equity [Abstract]

Schedule of Sale of Stock

The following table sets forth information regarding settlements of forward equity sale agreements under our at-the-market offering program for the nine months ended September 30, 2020:

	Nine Months Ended September 30, 2020
	(in millions, except share and per share data)
Shares of common stock settled during the period	3,147,110
Weighted average price per share of common stock	$	80.08
Aggregate gross proceeds	$	252.0
Aggregate net proceeds after selling commissions	$	247.3

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Partners' Capital of the Operating Partnership (Tables)

9 Months Ended

Sep. 30, 2020

Partners' Capital Notes [Abstract]

Schedule of Common Units outstanding

The following table sets forth the number of common units held by the Company and the number of common units held by non-affiliated investors and certain of our executive officers and directors in the form of noncontrolling common units as well as the ownership interest held on each respective date:

	September 30, 2020		December 31, 2019		September 30, 2019
Company owned common units in the Operating Partnership	115,247,221		106,016,287		106,011,916
Company owned general partnership interest	98.4	%	98.1	%	98.1	%
Noncontrolling common units of the Operating Partnership	1,931,574		2,023,287		2,023,287
Ownership interest of noncontrolling interest	1.6	%	1.9	%	1.9	%

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Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Schedule of share-based payment award, restricted stock units, valuation assumptions

The determination of the grant date fair value of the portion of the 2020 Performance-Based RSU grants covered by the market condition was calculated using a Monte Carlo simulation pricing model based on the assumptions in the table below, which resulted in a $84.54 grant date fair value per share.

	Fair Value Assumptions
Valuation date	January 31, 2020
Expected share price volatility	17.0%
Risk-free interest rate	1.35%
Fair value per share on valuation date (1)	$84.54

________________________

(1) Using the same Monte Carlo methodology and assumptions, the grant date fair value of one participant’s 2020 Performance-Based RSU grants was calculated as $85.52 per share.

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Rental Income and Future Minimum Rent (Tables)

9 Months Ended

Sep. 30, 2020

Leases [Abstract]

Rental income

The table below sets forth the allocation of rental income between fixed and variable payments and collectability reversals or recoveries for the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands)
Fixed lease payments	$	197,295		$	181,994		$	585,257		$	524,174
Variable lease payments	31,650			30,470			93,059			82,654
Collectability (reversals) recoveries (1)	(1,823		)	(143		)	(14,205		)	2,504
Total rental income	$	227,122		$	212,321		$	664,111		$	609,332

______________

(1)

Represents adjustments to rental income related to our assessment of the collectability of amounts due under leases with our tenants. For the three and nine months ended September 30, 2020, includes a reduction in revenue of $1.8 million and $14.2 million, respectively, primarily as a result of the COVID-19 pandemic.

Future contractual minimum rent under operating leases

Future contractual minimum rent under operating leases as of September 30, 2020 for future periods is summarized as follows:

Year Ending	(in thousands)
Remaining 2020	$	174,957
2021	729,823
2022	804,938
2023	790,212
2024	748,183
2025	716,941
Thereafter	3,453,142
Total (1)	$	7,418,196

______________

(1)

Excludes residential leases and leases with a term of one year or less.

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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2020

Commitments and Contingencies Disclosure [Abstract]

Schedule of contractual expiration dates for ground leases

The following table summarizes our properties that are held subject to long-term noncancellable ground lease obligations and the respective contractual expiration dates:

Property	Contractual Expiration Date (1)
601 108th Ave NE, Bellevue, WA	November 2093
701, 801 and 837 N. 34th Street, Seattle, WA (2)	December 2041
1701 Page Mill Road and 3150 Porter Drive, Palo Alto, CA	December 2067
Kilroy Airport Center Phases I, II, and III, Long Beach, CA	July 2084
3243 S. La Cienega Boulevard, Los Angeles, CA	October 2106

____________________

(1) Reflects the contractual expiration date prior to the impact of any extension or purchase options held by the Company.

(2)

The Company has three 10-year and one 45-year extension options for this ground lease, which if exercised would extend the expiration date to December 2116. These extension options are not assumed to be exercised in our calculation of the present value of the future minimum lease payments for this lease.

Schedule of future minimum rental repayments for ground leases

The minimum commitment under our ground leases as of September 30, 2020 for future periods is summarized as follows:

Year Ending	(in thousands)
Remaining 2020	$	1,411
2021	5,641
2022	5,642
2023	5,662
2024	5,662
2025	5,662
Thereafter	280,723
Total undiscounted cash flows (1)(2)(3)(4)(5)(6)	310,403
Present value discount	(212,467		)
Ground lease liabilities	$	97,936

________________________

(1) Excludes contingent future rent payments based on gross income or adjusted gross income and reflects the minimum ground lease obligations before the impact of ground lease extension options.

(2) One of our ground lease obligations is subject to a fair market value adjustment every five years; however, the lease includes ground rent subprotection and infrastructure rent credits which currently limit our annual rental obligations to $1.0 million. The contractual obligations for that ground lease included above assumes the lesser of $1.0 million or annual lease rental obligation in effect as of September 30, 2020.

(3) One of our ground lease obligations includes a component which is based on the percentage of gross income that exceeds the minimum ground rent. The minimum rent is subject to increases every five years based on 50% of the average annual percentage rent for the previous five years. The contractual obligations for that lease included above assume the current annual ground lease obligation in effect at September 30, 2020 for the remainder of the lease term since we cannot predict future adjustments.

(4) One of our ground lease obligations is subject to a fair market value adjustment every five years based on a combination of CPI adjustments and third-party appraisals limited to maximum increases annually. The contractual obligations for that lease included above assume the current annual ground lease obligation in effect at September 30, 2020 for the remainder of the lease term since we cannot predict future adjustments.

(5) One of our ground lease obligations includes a component which is based on the percentage of adjusted gross income that exceeds the minimum ground rent. The minimum rent is subject to increases every ten years by an amount equal to 60% of the average annual percentage rent for the previous three years. The contractual obligations for this lease included above assume the current annual ground lease obligation in effect at September 30, 2020 for the remainder of the lease term since we cannot predict future adjustments.

(6) One of our ground lease obligations is subject to fixed 5% ground rent increases every five years, with the next increase occurring on December 1, 2022.

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Fair Value Measurements and Disclosures (Tables)

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Fair value of the company's marketable securities

The following table sets forth the fair value of our marketable securities as of September 30, 2020 and December 31, 2019:

	Fair Value (Level 1) (1)
	September 30, 2020		December 31, 2019
Description	(in thousands)
Marketable securities (2)	$	25,073	$	27,098

________________________

(1) Based on quoted prices in active markets for identical securities.

(2) The marketable securities are held in a limited rabbi trust.

Net gain (loss) on marketable securities

The following table sets forth the net gain on marketable securities recorded during the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Description	(in thousands)				(in thousands)
Net gain on marketable securities	$	1,658	$	673	$	1,094	$	2,898

Carrying value and fair value of company's remaining financial instruments

The following table sets forth the carrying value and the fair value of our other financial instruments as of September 30, 2020 and December 31, 2019:

	September 30, 2020				December 31, 2019
	Carrying Value		Fair Value (1)		Carrying Value		Fair Value (1)
	(in thousands)
Liabilities
Secured debt, net	$	254,854	$	268,518	$	258,593	$	272,997
Unsecured debt, net	$	3,668,976	$	4,024,194	$	3,049,185	$	3,252,217
Unsecured line of credit	$	—	$	—	$	245,000	$	245,195

________________________

(1)

Fair value calculated using Level II inputs, which are based on model-derived valuations in which significant inputs and significant value drivers are observable in active markets.

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Net Income Available to Common Stockholders Per Share of the Company (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Net income available to common stockholders

The following table reconciles the numerator and denominator in computing the Company’s basic and diluted per-share computations for net income available to common stockholders for the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	49,028		$	43,846		$	108,463		$	122,943
Allocation to participating securities (1)	(572		)	(530		)	(1,657		)	(1,582		)
Numerator for basic and diluted net income available to common stockholders	$	48,456		$	43,316		$	106,806		$	121,361
Denominator:
Basic weighted average vested shares outstanding	115,226,324			104,841,176			112,405,817			102,252,739
Effect of dilutive securities	441,333			518,728			470,058			619,697
Diluted weighted average vested shares and common stock equivalents outstanding	115,667,657			105,359,904			112,875,875			102,872,436
Basic earnings per share:
Net income available to common stockholders per share	$	0.42		$	0.41		$	0.95		$	1.19
Diluted earnings per share:
Net income available to common stockholders per share	$	0.42		$	0.41		$	0.95		$	1.18

________________________ 

(1)

Participating securities include nonvested shares, certain time-based RSUs and vested market measure-based RSUs.

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Net Income Available to Common Unitholders Per Unit of the Operating Partnership (Tables)

9 Months Ended

Sep. 30, 2020

Net Income Available To Common Unitholders [Line Items]

Net income available to common stockholders

The following table reconciles the numerator and denominator in computing the Company’s basic and diluted per-share computations for net income available to common stockholders for the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	49,028		$	43,846		$	108,463		$	122,943
Allocation to participating securities (1)	(572		)	(530		)	(1,657		)	(1,582		)
Numerator for basic and diluted net income available to common stockholders	$	48,456		$	43,316		$	106,806		$	121,361
Denominator:
Basic weighted average vested shares outstanding	115,226,324			104,841,176			112,405,817			102,252,739
Effect of dilutive securities	441,333			518,728			470,058			619,697
Diluted weighted average vested shares and common stock equivalents outstanding	115,667,657			105,359,904			112,875,875			102,872,436
Basic earnings per share:
Net income available to common stockholders per share	$	0.42		$	0.41		$	0.95		$	1.19
Diluted earnings per share:
Net income available to common stockholders per share	$	0.42		$	0.41		$	0.95		$	1.18

________________________ 

(1)

Participating securities include nonvested shares, certain time-based RSUs and vested market measure-based RSUs.

Kilroy Realty L.P. [Member]

Net Income Available To Common Unitholders [Line Items]

Net income available to common stockholders

The following table reconciles the numerator and denominator in computing the Operating Partnership’s basic and diluted per-unit computations for net income available to common unitholders for the three and nine months ended September 30, 2020 and 2019:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands, except unit and per unit amounts)
Numerator:
Net income available to common unitholders	$	49,728		$	44,589		$	109,955		$	124,998
Allocation to participating securities (1)	(572		)	(530		)	(1,657		)	(1,582		)
Numerator for basic and diluted net income available to common unitholders	$	49,156		$	44,059		$	108,298		$	123,416
Denominator:
Basic weighted average vested units outstanding	117,158,160			106,864,463			114,394,706			104,276,187
Effect of dilutive securities	441,333			518,728			470,058			619,697
Diluted weighted average vested units and common unit equivalents outstanding	117,599,493			107,383,191			114,864,764			104,895,884
Basic earnings per unit:
Net income available to common unitholders per unit	$	0.42		$	0.41		$	0.95		$	1.18
Diluted earnings per unit:
Net income available to common unitholders per unit	$	0.42		$	0.41		$	0.94		$	1.18

________________________ 

(1)

Participating securities include nonvested shares, certain time-based RSUs and vested market measure-based RSUs.

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Supplemental Cash Flow Information of the Company (Tables)

9 Months Ended

Sep. 30, 2020

Supplemental Cash Flow Elements [Abstract]

Schedule of supplemental cash flows

Supplemental cash flow information follows (in thousands):

	Nine Months Ended September 30,
	2020		2019
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $58,405 and $58,337 as of September 30, 2020 and 2019, respectively	$	35,898	$	28,139
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,686	$	3,917
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	154,253	$	148,468
Tenant improvements funded directly by tenants	$	9,118	$	10,254
Assumption of accrued liabilities in connection with acquisitions	$	—	$	3,967
Initial measurement of operating right of use ground lease assets	$	—	$	82,938
Initial measurement of operating ground lease liabilities	$	—	$	87,409
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders (Note 15)	$	59,416	$	53,205
Exchange of common units of the Operating Partnership into shares of the Company’s common stock	$	3,972	$	78

Reconciliation of cash and cash equivalents and restricted cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2020 and 2019.

	Nine Months Ended September 30,
	2020		2019
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	60,044	$	51,604
Restricted cash at beginning of period	16,300		119,430
Cash and cash equivalents and restricted cash at beginning of period	$	76,344	$	171,034
Cash and cash equivalents at end of period	$	849,009	$	297,620
Restricted cash at end of period	16,300		6,300
Cash and cash equivalents and restricted cash at end of period	$	865,309	$	303,920

Reconciliation of cash and cash equivalents and restricted cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2020 and 2019.

	Nine Months Ended September 30,
	2020		2019
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	60,044	$	51,604
Restricted cash at beginning of period	16,300		119,430
Cash and cash equivalents and restricted cash at beginning of period	$	76,344	$	171,034
Cash and cash equivalents at end of period	$	849,009	$	297,620
Restricted cash at end of period	16,300		6,300
Cash and cash equivalents and restricted cash at end of period	$	865,309	$	303,920

XML

Supplemental Cash Flow Information of the Operating Partnership (Tables)

9 Months Ended

Sep. 30, 2020

Other Significant Noncash Transactions [Line Items]

Schedule of supplemental cash flows

Supplemental cash flow information follows (in thousands):

	Nine Months Ended September 30,
	2020		2019
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $58,405 and $58,337 as of September 30, 2020 and 2019, respectively	$	35,898	$	28,139
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,686	$	3,917
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	154,253	$	148,468
Tenant improvements funded directly by tenants	$	9,118	$	10,254
Assumption of accrued liabilities in connection with acquisitions	$	—	$	3,967
Initial measurement of operating right of use ground lease assets	$	—	$	82,938
Initial measurement of operating ground lease liabilities	$	—	$	87,409
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders (Note 15)	$	59,416	$	53,205
Exchange of common units of the Operating Partnership into shares of the Company’s common stock	$	3,972	$	78

Reconciliation of cash and cash equivalents and restricted cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2020 and 2019.

	Nine Months Ended September 30,
	2020		2019
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	60,044	$	51,604
Restricted cash at beginning of period	16,300		119,430
Cash and cash equivalents and restricted cash at beginning of period	$	76,344	$	171,034
Cash and cash equivalents at end of period	$	849,009	$	297,620
Restricted cash at end of period	16,300		6,300
Cash and cash equivalents and restricted cash at end of period	$	865,309	$	303,920

Reconciliation of cash and cash equivalents and restricted cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2020 and 2019.

	Nine Months Ended September 30,
	2020		2019
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	60,044	$	51,604
Restricted cash at beginning of period	16,300		119,430
Cash and cash equivalents and restricted cash at beginning of period	$	76,344	$	171,034
Cash and cash equivalents at end of period	$	849,009	$	297,620
Restricted cash at end of period	16,300		6,300
Cash and cash equivalents and restricted cash at end of period	$	865,309	$	303,920

Kilroy Realty L.P. [Member]

Other Significant Noncash Transactions [Line Items]

Schedule of supplemental cash flows

Supplemental cash flow information follows (in thousands):

	Nine Months Ended September 30,
	2020		2019
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $58,405 and $58,337 as of September 30, 2020 and 2019, respectively	$	35,898	$	28,139
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,686	$	3,917
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	154,253	$	148,468
Tenant improvements funded directly by tenants	$	9,118	$	10,254
Assumption of accrued liabilities in connection with acquisitions	$	—	$	3,967
Initial measurement of operating right of use ground lease assets	$	—	$	82,938
Initial measurement of operating ground lease liabilities	$	—	$	87,409
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders (Note 15)	$	59,416	$	53,205

Reconciliation of cash and cash equivalents and restricted cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2020 and 2019.

	Nine Months Ended September 30,
	2020		2019
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	60,044	$	51,604
Restricted cash at beginning of period	16,300		119,430
Cash and cash equivalents and restricted cash at beginning of period	$	76,344	$	171,034
Cash and cash equivalents at end of period	$	849,009	$	297,620
Restricted cash at end of period	16,300		6,300
Cash and cash equivalents and restricted cash at end of period	$	865,309	$	303,920

Reconciliation of cash and cash equivalents and restricted cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2020 and 2019.

	Nine Months Ended September 30,
	2020		2019
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	60,044	$	51,604
Restricted cash at beginning of period	16,300		119,430
Cash and cash equivalents and restricted cash at beginning of period	$	76,344	$	171,034
Cash and cash equivalents at end of period	$	849,009	$	297,620
Restricted cash at end of period	16,300		6,300
Cash and cash equivalents and restricted cash at end of period	$	865,309	$	303,920

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Organization, Ownership and Basis of Presentation - Operating Properties (Details)	Sep. 30, 2020 ft² property_unit residential_unit project building tenant
Stabilized office properties [Member]
Real Estate Properties [Line Items]
Number of Buildings | building	114
Rentable Square Feet | ft²	14,329,607
Number of Tenants | tenant	461
Percentage Occupied	92.20%
Percentage Leased	95.50%
Stabilized residential properties [Member]
Real Estate Properties [Line Items]
Number of Buildings | building	1
Percentage Occupied	87.80%
Number of Units | building	200
In-process development projects - tenant improvement [Member]
Real Estate Properties [Line Items]
Number of Buildings | project	4
Rentable Square Feet | ft²	1,435,000
In-process development projects - under construction [Member]
Real Estate Properties [Line Items]
Number of Buildings | project	3
Rentable Square Feet | ft²	856,000
Number of residential units | residential_unit	193
Completed residential development project [Member]
Real Estate Properties [Line Items]
Number of Buildings | project	1
Number of Units | property_unit	608

XML

Organization, Ownership and Basis of Presentation - Narrative (Details) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2020 USD ($) ft² a VIE property property_partnership project building	Sep. 30, 2019	Dec. 31, 2019 USD ($) VIE entity property_partnership
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Lease-up properties occupancy percentage	95.00%
Lease-up properties occupancy duration	1 year
Assets	$ 9,984,608		$ 8,900,094
Liabilities	4,732,644		4,329,236
Noncontrolling interest in VIE	$ 200,596		$ 195,431
San Francisco, California [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties | building	1
Washington [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties | property	1
Stabilized office properties [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties | building	114
Rentable square feet | ft²	14,329,607
Stabilized office properties [Member] | Washington [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties | property	8
Development properties [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties | property	2
Number of property partnerships | property_partnership	3
Development properties [Member] | San Francisco, California [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Rentable square feet | ft²	750,370
Development properties [Member] | San Diego, California [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Rentable square feet | ft²	95,871
Development properties [Member] | Washington [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties | property	1
Office properties owned by consolidated property partnerships [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties | property	4
Development sites [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties | project	5
Area of undeveloped land | a	61
Properties and development projects [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Property ownership percentage	100.00%
101 First LLC and 303 Second LLC [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Company owned general partnership interest	56.00%
101 First LLC and 303 Second LLC [Member] | Development properties [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of property partnerships | property_partnership	2
Redwood LLC [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties | property	2
Company owned general partnership interest	93.00%
Operating Partnership [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership interest (percent)	98.40%	98.10%	98.10%
Non-affiliated investors and certain of our executive officers and directors [Member] | Operating Partnership [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership interest (percent)	1.60%	1.90%	1.90%
Variable Interest Entity, Primary Beneficiary [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of property partnerships | property_partnership			2
Number of VIEs | VIE	2		4
Number of entities established | entity			2
Assets	$ 477,600		$ 676,700
Liabilities	35,300		40,100
Variable Interest Entity, Primary Beneficiary [Member] | Real estate investment [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Assets	395,000		598,000
Variable Interest Entity, Primary Beneficiary [Member] | 101 First LLC and 303 Second LLC [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Noncontrolling interest in VIE	$ 194,900		$ 189,600

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Prepaid Expenses and Other Assets, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Prepaid Expense and Other Assets [Abstract]
Furniture, fixtures and other long-lived assets, net	$ 42,899	$ 35,286
Prepaid expenses	12,807	18,724
Note receivable	0	1,651
Total prepaid expenses and other assets, net	$ 55,706	55,661
Valuation allowance		$ 3,600

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Secured and Unsecured Debt of the Operating Partnership - Unsecured Senior Notes, Unsecured Revolving Credit Facility and Term Loan Facility (Details) - USD ($)	1 Months Ended		9 Months Ended	12 Months Ended
	Aug. 31, 2020	Apr. 30, 2020	Sep. 30, 2020	Dec. 31, 2019
Terms of the Credit Facility
Outstanding borrowings			$ 0	$ 245,000,000
Senior Notes [Member] | 2.500% Unsecured Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt	$ 425,000,000.0
Unamortized discount	$ 2,700,000
Stated interest rate on debt (percent)	2.50%
Senior Notes [Member] | 4.27% Unsecured Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt		$ 350,000,000.0
Stated interest rate on debt (percent)		4.27%
Minimum principal amount outstanding that may be repurchased (percent)		5.00%
Redemption Price as percent of principal amount (percent)		100.00%
Kilroy Realty L.P. [Member]
Terms of the Credit Facility
Outstanding borrowings			0	245,000,000
Kilroy Realty L.P. [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Unamortized discount			8,500,000
Kilroy Realty L.P. [Member] | Revolving credit facility [Member]
Terms of the Credit Facility
Outstanding borrowings			0	245,000,000
Remaining borrowing capacity			750,000,000	505,000,000
Total borrowing capacity			$ 750,000,000	$ 750,000,000
Interest rate (percent)			1.15%	2.76%
Facility fee-annual rate (percent)			0.20%	0.20%
Contingent additional borrowings			$ 600,000,000.0
Unamortized deferred financing costs			$ 2,400,000	$ 3,400,000
Kilroy Realty L.P. [Member] | Revolving credit facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Terms of the Credit Facility
Variable rate (percent)			1.00%	1.00%
Kilroy Realty L.P. [Member] | Line of credit [Member] | $150 Million Term Loan Facility [Member]
Debt Instrument [Line Items]
Repayment of debt	$ 150,000,000.0
Terms of the Credit Facility
Outstanding borrowings				$ 150,000,000
Remaining borrowing capacity				0
Total borrowing capacity				$ 150,000,000
Interest rate (percent)				2.85%
Undrawn facility fee-annual rate (percent)				0.20%
Unamortized deferred financing costs				$ 700,000
Kilroy Realty L.P. [Member] | Line of credit [Member] | $150 Million Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Terms of the Credit Facility
Variable rate (percent)				1.10%

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Secured and Unsecured Debt of the Operating Partnership - Debt Maturities (Details) - Kilroy Realty L.P. [Member] $ in Thousands	Sep. 30, 2020 USD ($)
Stated debt maturities and scheduled amortization payments
Remaining 2020	$ 1,304
2021	5,342
2022	5,554
2023	305,775
2024	431,006
2025	406,245
Thereafter	2,800,442
Total debt	3,955,668
Unsecured term loan facility, unsecured senior notes and secured debt [Member]
Stated debt maturities and scheduled amortization payments
Unamortized deferred financing costs	23,300
Unsecured senior notes [Member]
Stated debt maturities and scheduled amortization payments
Unamortized discount	$ 8,500

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Secured and Unsecured Debt of the Operating Partnership - Capitalized Interest and Loan Fees (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Capitalized Interest and Loan Fees [Line Items]
Interest expense	$ 19,468	$ 11,635	$ 49,796	$ 34,605
Kilroy Realty L.P. [Member]
Capitalized Interest and Loan Fees [Line Items]
Gross interest expense	38,807	32,220	111,069	95,507
Capitalized interest and deferred financing costs	(19,339)	(20,585)	(61,273)	(60,902)
Interest expense	$ 19,468	$ 11,635	$ 49,796	$ 34,605

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Stockholders' Equity of the Company (Details) - USD ($)			3 Months Ended				9 Months Ended
	Mar. 25, 2020	Feb. 18, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	May 19, 2020	May 18, 2020	Dec. 31, 2019	Jun. 30, 2018
Class of Stock [Line Items]
Common stock, shares authorized (in shares)			280,000,000				280,000,000		280,000,000	150,000,000	150,000,000
Forward equity offering, numbers of shares authorized (in shares)		5,750,000
Forward equity offering, value of shares offered		$ 494,500,000
Forward equity offering price per share (in dollars per share)		$ 86.00
At the market stock offering aggregate gross sales price of common stock												$ 500,000,000.0
Common stock, shares issued (in shares)			115,247,221				115,247,221				106,016,287
Proceeds from issuance of stock							$ 721,675,000	$ 353,904,000
Forward equity sale [Member]
Class of Stock [Line Items]
Proceeds from issuance of stock	$ 474,900,000						$ 247,300,000
Common Stock [Member] | Forward equity sale [Member]
Class of Stock [Line Items]
Common stock, shares issued (in shares)			3,594,576				3,594,576
At the market stock offering remaining amount available for issuance			$ 214,200,000				$ 214,200,000
2018 At-The-Market Program [Member] | Common Stock [Member] | Forward equity sale [Member]
Class of Stock [Line Items]
Sale of stock, shares available for sale (in shares)											3,147,110
Price per share (in dollars per share)											$ 80.08
Common Stock [Member]
Class of Stock [Line Items]
Issuance of common stock (in shares)			0	0	8,897,110	5,000,000
Common Stock [Member] | Forward equity sale [Member]
Class of Stock [Line Items]
Issuance of common stock (in shares)							3,147,110
Price per share (in dollars per share)			$ 80.08				$ 80.08
Number of shares issued (in shares)	5,750,000
Proceeds from issuance of stock							$ 252,000,000.0
Aggregate net proceeds after selling commissions							$ 247,300,000

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Noncontrolling Interests on the Company's Consolidated Financial Statements (Details) $ / shares in Units, $ in Millions	9 Months Ended		12 Months Ended
	Sep. 30, 2020 USD ($) trading_day $ / shares shares	Sep. 30, 2019 shares	Dec. 31, 2019 USD ($) $ / shares shares
Noncontrolling Interest [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.01		$ 0.01
Number of trading days | trading_day	10
Aggregate value upon redemption of outstanding noncontrolling common units | $	$ 102.2		$ 167.7
Non-affiliated investors and certain of our executive officers and directors [Member] | Common units [Member]
Noncontrolling Interest [Line Items]
Common units outstanding held by common limited partners (in units) | shares	1,931,574	2,023,287	2,023,287
Operating Partnership [Member]
Noncontrolling Interest [Line Items]
Ownership interest (percent)	98.40%	98.10%	98.10%
Operating Partnership [Member] | Non-affiliated investors and certain of our executive officers and directors [Member]
Noncontrolling Interest [Line Items]
Ownership interest (percent)	1.60%	1.90%	1.90%

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Partners' Capital of the Operating Partnership (Details) - shares	9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Operating Partnership [Member]
General Partners' Capital Account [Abstract]
Ownership interest (percent)	98.40%	98.10%	98.10%
Kilroy Realty L.P. [Member] | Common units [Member]
General Partners' Capital Account [Abstract]
Company owned common units in the Operating Partnership (in units)	115,247,221	106,011,916	106,016,287
Noncontrolling common units of the Operating Partnership (in units)	1,931,574		2,023,287
Non-affiliated investors and certain of our executive officers and directors [Member] | Operating Partnership [Member]
General Partners' Capital Account [Abstract]
Ownership interest (percent)	1.60%	1.90%	1.90%
Non-affiliated investors and certain of our executive officers and directors [Member] | Common units [Member]
General Partners' Capital Account [Abstract]
Noncontrolling common units of the Operating Partnership (in units)	1,931,574	2,023,287	2,023,287

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Share-Based Compensation - Narrative (Details) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Jan. 31, 2020 USD ($) installment $ / shares shares	Sep. 30, 2020 USD ($) compensation_plan shares	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) compensation_plan shares	Sep. 30, 2019 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based incentive compensation plans | compensation_plan		1		1
Effective registration shares (in shares) | shares		10,700,000		10,700,000
Number of shares available for grant (in shares) | shares		1,600,000		1,600,000
Share-based compensation expense | $		$ 7.8	$ 6.8	$ 30.0	$ 24.4
Share-based compensation expense capitalized | $		1.8	$ 0.7	5.7	$ 4.2
Share-based compensation not yet recognized | $		$ 42.6		$ 42.6
Share-based compensation not yet recognized period of recognition				1 year 7 months 6 days
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted in period (in shares) | shares	263,626
Market Measure-Based Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted in period (in shares) | shares	154,267
Time-Based Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted in period (in shares) | shares	109,359
Number of RSUs forfeited (in shares) | shares				5,148
Time-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Number of installments | installment	3
Right to receive number of shares (in shares) | shares	1
Time-Based Restricted Stock Units (RSUs), Grant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value RSUs granted | $	$ 9.0
Performance-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs forfeited (in shares) | shares				12,263
Vesting period				3 years
Vesting, achievement of pre-set FFO per share goals, percentage of RSUs		100.00%		100.00%
Vesting, Average debt to EBIDTA ratio, percentage of RSUs		50.00%		50.00%
Vesting, Market measure, percentage of RSUs		50.00%		50.00%
Number of shares issuable per RSU	1
Share price | $ / shares	$ 82.57
Fair value per share on valuation date (in dollars per share) | $ / shares	$ 84.54
Remaining expected life, including future volatility	5 years 9 months 18 days
Performance period	2 years 10 months 24 days
Fair value RSUs granted | $	$ 12.9
Share-based compensation expense | $				$ 3.2
Accelerated Compensation Related to Severance Packages [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense | $		$ 0.2		4.5
General and Administrative Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash severance costs for departure of an executive officer | $				$ 14.1

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Share-Based Compensation - Fair Value Assumptions (Details) - Performance-Based RSUs [Member]	1 Months Ended
	Jan. 31, 2020 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected share price volatility	17.00%
Risk-free interest rate	1.35%
Fair value per share on valuation date (in dollars per share)	$ 84.54
One Participant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per share on valuation date (in dollars per share)	$ 85.52

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Rental Income and Future Minimum Rent - Rental income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Fixed lease payments	$ 197,295	$ 181,994	$ 585,257	$ 524,174
Variable lease payments	31,650	30,470	93,059	82,654
Collectability (reversals) recoveries (1)	(1,823)	(143)	(14,205)	2,504
Total rental income	227,122	$ 212,321	664,111	$ 609,332
Reveral of revenue related to the cumulative impact of transitioning to a cash basis of revenue recognition as a result of the COVID-19 pandemic.	$ (1,800)		$ (14,200)

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Rental Income and Future Minimum Rent - Future Contractual Minimum Rent (Details) $ in Thousands	Sep. 30, 2020 USD ($)
Future contractual minimum rent under operating lease
Remaining 2020	$ 174,957
2021	729,823
2022	804,938
2023	790,212
2024	748,183
2025	716,941
Thereafter	3,453,142
Total	$ 7,418,196

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Commitments and Contingencies - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) ground_lease	Sep. 30, 2019 USD ($)
Long-term Purchase Commitment [Line Items]
Commitments for contracts and executed leases, operating and redevelopment and development properties	$ 737.4		$ 737.4
Weighted average discount rate, ground leases	5.11%		5.11%
Weighted average remaining lease term	54 years		54 years
Variable lease, cost	$ 0.7	$ 0.7	$ 2.4	$ 2.3
Environmental matters [Member]
Long-term Purchase Commitment [Line Items]
Accrued environmental remediation liabilities	$ 72.0		$ 72.0
Ten year ground lease extension option [Member]
Long-term Purchase Commitment [Line Items]
Number of extension options | ground_lease			3
Ground lease extension option term			10 years
Forty-five year ground lease extension option [Member]
Long-term Purchase Commitment [Line Items]
Number of extension options | ground_lease			1
Ground lease extension option term			45 years

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Commitments and Contingencies - Minimum Commitment Under Ground Leases (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019	Jan. 01, 2019
Minimum commitment under our ground leases
Remaining 2020	$ 1,411
2021	5,641
2022	5,642
2023	5,662
2024	5,662
2025	5,662
Thereafter	280,723
Total undiscounted cash flows	310,403
Present value discount	(212,467)
Ground lease liabilities	$ 97,936	$ 98,400	$ 87,409
Period after which ground lease rentals are adjusted based on fair market value and the Consumer Price Index	5 years
Annual ground lease rental obligations limit	$ 1,000
Average annual percentage rent for previous five years (percent)	50.00%
Previous period included in average annual rent percentage for five-year increases	5 years
Duration of ground lease prior to increase ten years	10 years
Average annual percentage rent for previous ten years (percent)	60.00%
Previous period included in average annual rent percentage for ten-year increases	3 years
Percentage rent increase every five years	5.00%

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Fair Value Measurements and Disclosures - Assets and Liabilities Reported at Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Fair value adjustment of marketable securities and deferred compensation plan liability
Net gain on marketable securities	$ 1,658	$ 673	$ 1,094	$ 2,898
Fair value, measurements, recurring [Member] | Fair value (Level 1) [Member]
Assets and Liabilities Reported at Fair Value
Marketable securities	$ 25,073		$ 25,073		$ 27,098

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Fair Value Measurements and Disclosures - Financial Instruments Disclosed at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Carrying value [Member] | Secured debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, net	$ 254,854	$ 258,593
Carrying value [Member] | Unsecured debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, net	3,668,976	3,049,185
Carrying value [Member] | Line of credit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, net	0	245,000
Fair value [Member] | Secured debt [Member] | Fair value (level 2) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, net	268,518	272,997
Fair value [Member] | Unsecured debt [Member] | Fair value (level 2) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, net	4,024,194	3,252,217
Fair value [Member] | Line of credit [Member] | Fair value (level 2) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, net	$ 0	$ 245,195

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Net Income Available to Common Stockholders Per Share of the Company (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Numerator:
Net income available to common stockholders	$ 49,028	$ 43,846	$ 108,463	$ 122,943
Allocation to participating securities	(572)	(530)	(1,657)	(1,582)
Numerator for basic and diluted net income available to common stockholders	$ 48,456	$ 43,316	$ 106,806	$ 121,361
Denominator:
Basic weighted average vested shares outstanding (in shares)	115,226,324	104,841,176	112,405,817	102,252,739
Effect of dilutive securities (in shares)	441,333	518,728	470,058	619,697
Diluted weighted average vested shares and common stock equivalents outstanding (in shares)	115,667,657	105,359,904	112,875,875	102,872,436
Basic earnings per share:
Net income available to common stockholders per share (in dollars per share)	$ 0.42	$ 0.41	$ 0.95	$ 1.19
Diluted earnings per share:
Net income available to common stockholders per share (in dollars per share)	$ 0.42	$ 0.41	$ 0.95	$ 1.18

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Net Income Available to Common Unitholders Per Unit of the Operating Partnership (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Numerator:
Net income available to common unitholders	$ 49,028	$ 43,846	$ 108,463	$ 122,943
Allocation to participating securities	(572)	(530)	(1,657)	(1,582)
Numerator for basic and diluted net income available to common stockholders	$ 48,456	$ 43,316	$ 106,806	$ 121,361
Denominator:
Basic weighted average vested shares outstanding (in shares)	115,226,324	104,841,176	112,405,817	102,252,739
Effect of dilutive securities (in shares)	441,333	518,728	470,058	619,697
Diluted weighted average vested shares and common stock equivalents outstanding (in shares)	115,667,657	105,359,904	112,875,875	102,872,436
Basic earnings per unit:
Net income available to common stockholders per share (in dollars per share)	$ 0.42	$ 0.41	$ 0.95	$ 1.19
Diluted earnings per unit:
Net income available to common stockholders per share (in dollars per share)	$ 0.42	$ 0.41	$ 0.95	$ 1.18
Kilroy Realty L.P. [Member]
Numerator:
Net income available to common unitholders	$ 49,728	$ 44,589	$ 109,955	$ 124,998
Allocation to participating securities	(572)	(530)	(1,657)	(1,582)
Numerator for basic and diluted net income available to common stockholders	$ 49,156	$ 44,059	$ 108,298	$ 123,416
Denominator:
Basic weighted average vested shares outstanding (in shares)	117,158,160	106,864,463	114,394,706	104,276,187
Effect of dilutive securities (in shares)	441,333	518,728	470,058	619,697
Diluted weighted average vested shares and common stock equivalents outstanding (in shares)	117,599,493	107,383,191	114,864,764	104,895,884
Basic earnings per unit:
Net income available to common stockholders per share (in dollars per share)	$ 0.42	$ 0.41	$ 0.95	$ 1.18
Diluted earnings per unit:
Net income available to common stockholders per share (in dollars per share)	$ 0.42	$ 0.41	$ 0.94	$ 1.18

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Supplemental Cash Flow Information of the Company - Supplemental Cash Flow (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Jan. 01, 2019
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $58,405 and $58,337 as of September 30, 2020 and 2019, respectively	$ 35,898	$ 28,139
Capitalized interest	58,405	58,337
Cash paid for amounts included in the measurement of ground lease liabilities	4,686	3,917
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	154,253	148,468
Tenant improvements funded directly by tenants	9,118	10,254
Assumption of accrued liabilities in connection with acquisitions	0	3,967
Initial measurement of operating right of use ground lease assets	95,733		$ 96,348	$ 82,938
Initial measurement of operating ground lease liabilities	97,936		$ 98,400	$ 87,409
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders (Note 15)	59,416	53,205
Exchange of common units of the Operating Partnership into shares of the Company’s common stock	$ 3,972	$ 78

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Supplemental Cash Flow Information of the Company - Reconciliation of Cash and Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents	$ 849,009	$ 60,044	$ 297,620	$ 51,604
Restricted cash	16,300	16,300	6,300	119,430
Cash and cash equivalents and restricted cash	$ 865,309	$ 76,344	$ 303,920	$ 171,034

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Supplemental Cash Flow Information of the Operating Partnership - Supplemental Cash Flow (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Jan. 01, 2019
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $58,405 and $58,337 as of September 30, 2020 and 2019, respectively	$ 35,898	$ 28,139
Capitalized interest	58,405	58,337
Cash paid for amounts included in the measurement of ground lease liabilities	4,686	3,917
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	154,253	148,468
Tenant improvements funded directly by tenants	9,118	10,254
Assumption of accrued liabilities in connection with acquisitions	0	3,967
Initial measurement of operating right of use ground lease assets	95,733		$ 96,348	$ 82,938
Initial measurement of operating ground lease liabilities	97,936		98,400	87,409
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders (Note 15)	59,416	53,205
Kilroy Realty L.P. [Member]
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $58,405 and $58,337 as of September 30, 2020 and 2019, respectively	35,898	28,139
Capitalized interest	58,405	58,337
Cash paid for amounts included in the measurement of ground lease liabilities	4,686	3,917
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	154,253	148,468
Tenant improvements funded directly by tenants	9,118	10,254
Assumption of accrued liabilities in connection with acquisitions	0	3,967
Initial measurement of operating right of use ground lease assets	95,733		96,348	82,938
Initial measurement of operating ground lease liabilities	97,936		$ 98,400	$ 87,409
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders (Note 15)	$ 59,416	$ 53,205

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Supplemental Cash Flow Information of the Operating Partnership - Reconciliation of Cash and Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents	$ 849,009	$ 60,044	$ 297,620	$ 51,604
Restricted cash	16,300	16,300	6,300	119,430
Cash and cash equivalents and restricted cash	865,309	76,344	303,920	171,034
Kilroy Realty L.P. [Member]
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents	849,009	60,044	297,620	51,604
Restricted cash	16,300	16,300	6,300	119,430
Cash and cash equivalents and restricted cash	$ 865,309	$ 76,344	$ 303,920	$ 171,034

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Subsequent Events (Details) $ in Millions	Oct. 14, 2020 USD ($)
Subsequent event [Member]
Subsequent Event [Line Items]
Payment of dividends	$ 59.4