10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended September 30, 2017

OR

o 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)

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  þ    No   o

Kilroy Realty, L.P.         Yes  þ    No   o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted 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 and post such files).    

Kilroy Realty Corporation     Yes  þ    No   o

Kilroy Realty, L.P.         Yes  þ    No   o

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     þ	Accelerated filer     o
Non-accelerated filer     o (Do not check if a smaller reporting company)	Smaller reporting company     o
Emerging growth company    o 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. o
Kilroy Realty, L.P.
Large accelerated filer     o	Accelerated filer     o
Non-accelerated filer     þ (Do not check if a smaller reporting company)	Smaller reporting company     o
Emerging growth company    o 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. o

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  o     No   þ

Kilroy Realty, L.P. Yes  o     No   þ

As of October 20, 2017, 98,382,256shares 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, 2017 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, 2017, the Company owned an approximate 97.9% common general partnership interest in the Operating Partnership. The remaining approximate 2.1% 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 guarantees some 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 Operating Partnership’s financial statements reflect the noncontrolling interest in Kilroy Realty Finance Partnership, L.P., a Delaware limited partnership (the “Finance Partnership”). This noncontrolling interest represents the Company’s 1% indirect general partnership interest in the Finance Partnership, which is directly held by Kilroy Realty Finance, Inc., a wholly owned subsidiary of the Company. The differences between noncontrolling interests, stockholders’ equity and partners’ capital result from the differences in the equity issued by the Company and the Operating Partnership, and in the Operating Partnership’s noncontrolling interest in the Finance 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 7, Stockholders’ Equity of the Company;

◦ Note 8, Partners’ Capital of the Operating Partnership;

i

◦ Note 12, Net Income Available to Common Stockholders Per Share of the Company;

◦ Note 13, Net Income Available to Common Unitholders Per Unit of the Operating Partnership;

◦ Note 14, Supplemental Cash Flow Information of the Company; and

◦ Note 15, 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, 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, 2017

TABLE OF CONTENTS

		Page
	PART I – FINANCIAL INFORMATION
Item 1.	FINANCIAL STATEMENTS OF KILROY REALTY CORPORATION	1
	Consolidated Balance Sheets as of September 30, 2017 (unaudited) and December 31, 2016	1
	Consolidated Statements of Operations for the Three and Nine Months ended September 30, 2017 and 2016 (unaudited)	2
	Consolidated Statements of Equity for the Nine Months ended September 30, 2017 and 2016 (unaudited)	3
	Consolidated Statements of Cash Flows for the Nine Months ended September 30, 2017 and 2016 (unaudited)	4
Item 1.	FINANCIAL STATEMENTS OF KILROY REALTY, L.P.	5
	Consolidated Balance Sheets as of September 30, 2017 (unaudited) and December 31, 2016	5
	Consolidated Statements of Operations for the Three and Nine Months ended September 30, 2017 and 2016 (unaudited)	6
	Consolidated Statements of Capital for the Nine Months ended September 30, 2017 and 2016 (unaudited)	7
	Consolidated Statements of Cash Flows for the Nine Months ended September 30, 2017 and 2016 (unaudited)	8
	Notes to Unaudited Consolidated Financial Statements	9
Item 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	26
Item 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	53
Item 4.	CONTROLS AND PROCEDURES (KILROY REALTY CORPORATION AND KILROY REALTY, L.P.)	53
	PART II – OTHER INFORMATION
Item 1.	LEGAL PROCEEDINGS	54
Item 1A.	RISK FACTORS	54
Item 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	54
Item 3.	DEFAULTS UPON SENIOR SECURITIES	54
Item 4.	MINE SAFETY DISCLOSURES	54
Item 5.	OTHER INFORMATION	54
Item 6.	EXHIBITS	55
SIGNATURES		56

PART I – FINANCIAL INFORMATION

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

KILROY REALTY CORPORATION

CONSOLIDATED BALANCE SHEETS

(in thousands, except share data)

	September 30, 2017			December 31, 2016
ASSETS	(unaudited)
REAL ESTATE ASSETS:
Land and improvements	$	1,076,172		$	1,108,971
Buildings and improvements	4,871,667			4,938,250
Undeveloped land and construction in progress	1,292,017			1,013,533
Total real estate assets held for investment	7,239,856			7,060,754
Accumulated depreciation and amortization	(1,216,358		)	(1,139,853		)
Total real estate assets held for investment, net	6,023,498			5,920,901
REAL ESTATE ASSETS AND OTHER ASSETS HELD FOR SALE, NET	—			9,417
CASH AND CASH EQUIVALENTS	64,954			193,418
RESTRICTED CASH (Note 2)	179,276			56,711
MARKETABLE SECURITIES (Note 11)	18,851			14,773
CURRENT RECEIVABLES, NET (Note 3)	18,626			13,460
DEFERRED RENT RECEIVABLES, NET (Note 3)	238,959			218,977
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET	185,420			208,368
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 4)	108,715			70,608
TOTAL ASSETS	$	6,838,299		$	6,706,633
LIABILITIES AND EQUITY
LIABILITIES:
Secured debt, net (Notes 5 and 11)	$	465,828		$	472,772
Unsecured debt, net (Notes 5 and 11)	1,909,381			1,847,351
Unsecured line of credit (Notes 5 and 11)	60,000			—
Accounts payable, accrued expenses and other liabilities	271,405			202,391
Accrued dividends and distributions (Note 16)	43,324			222,306
Deferred revenue and acquisition-related intangible liabilities, net	145,556			150,360
Rents received in advance and tenant security deposits	46,925			52,080
Liabilities of real estate assets held for sale	—			56
Total liabilities	2,942,419			2,947,316
COMMITMENTS AND CONTINGENCIES (Note 10)
EQUITY:
Stockholders’ Equity (Note 7):
Preferred stock, $.01 par value, 30,000,000 shares authorized:
6.875% Series G Cumulative Redeemable Preferred stock, $.01 par value, no shares issued and outstanding at 9/30/2017, and 4,000,000 shares authorized, issued and outstanding ($100,000 liquidation preference) at 12/31/2016	—			96,155
6.375% Series H Cumulative Redeemable Preferred stock, $.01 par value, no shares issued and outstanding at 9/30/2017, and 4,000,000 shares authorized, issued and outstanding ($100,000 liquidation preference) at 12/31/2016	—			96,256
Common stock, $.01 par value, 150,000,000 shares authorized, 98,382,256 and 93,219,439 shares issued and outstanding, respectively	984			932
Additional paid-in capital	3,797,546			3,457,649
Distributions in excess of earnings	(108,667		)	(107,997		)
Total stockholders’ equity	3,689,863			3,542,995
Noncontrolling Interests:
Common units of the Operating Partnership (Note 6)	77,911			85,590
Noncontrolling interests in consolidated property partnerships (Note 1)	128,106			130,732
Total noncontrolling interests	206,017			216,322
Total equity	3,895,880			3,759,317
TOTAL LIABILITIES AND EQUITY	$	6,838,299		$	6,706,633

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,
	2017			2016			2017			2016
REVENUES
Rental income	$	159,954		$	146,539		$	475,527		$	423,947
Tenant reimbursements	19,665			16,406			58,228			43,948
Other property income	1,915			5,403			7,685			6,032
Total revenues	181,534			168,348			541,440			473,927
EXPENSES
Property expenses	33,070			30,050			97,615			85,236
Real estate taxes	16,371			14,501			50,878			39,378
Provision for bad debts	1,036			—			2,743			—
Ground leases	1,562			909			4,751			2,506
General and administrative expenses	14,514			13,533			43,750			40,949
Acquisition-related expenses (Note 1)	—			188			—			964
Depreciation and amortization	62,567			56,666			185,737			160,452
Total expenses	129,120			115,847			385,474			329,485
OTHER (EXPENSES) INCOME
Interest income and other net investment gains (Note 11)	1,526			538			3,629			1,120
Interest expense (Note 5)	(16,151		)	(14,976		)	(51,476		)	(41,189		)
Total other (expenses) income	(14,625		)	(14,438		)	(47,847		)	(40,069		)
INCOME FROM OPERATIONS BEFORE GAINS (LOSS) ON SALES OF REAL ESTATE	37,789			38,063			108,119			104,373
Net gain (loss) on sale of land (Note 2)	449			—			449			(295		)
Gains on sales of depreciable operating properties (Note 2)	37,250			18,312			39,507			164,302
NET INCOME	75,488			56,375			148,075			268,380
Net income attributable to noncontrolling common units of the Operating Partnership (Note 6)	(1,394		)	(1,453		)	(2,633		)	(5,892		)
Net income attributable to noncontrolling interests in consolidated property partnerships	(2,984		)	(1,027		)	(9,359		)	(1,438		)
Total income attributable to noncontrolling interests	(4,378		)	(2,480		)	(11,992		)	(7,330		)
NET INCOME ATTRIBUTABLE TO KILROY REALTY CORPORATION	71,110			53,895			136,083			261,050
Preferred dividends	(808		)	(3,313		)	(5,774		)	(9,938		)
Original issuance costs of redeemed preferred stock and preferred units (Note 7)	(3,744		)	—			(7,589		)	—
Total preferred dividends	(4,552		)	(3,313		)	(13,363		)	(9,938		)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$	66,558		$	50,582		$	122,720		$	251,112
Net income available to common stockholders per share – basic (Note 12)	$	0.67		$	0.54		$	1.24		$	2.71
Net income available to common stockholders per share – diluted (Note 12)	$	0.67		$	0.54		$	1.23		$	2.69
Weighted average common shares outstanding – basic (Note 12)	98,352,139			92,227,016			98,008,780			92,220,522
Weighted average common shares outstanding – diluted (Note 12)	98,911,612			92,920,406			98,591,048			92,831,538
Dividends declared per common share	$	0.425		$	0.375		$	1.225		$	1.100

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
	Preferred Stock		Number of Shares		Common Stock			Additional Paid-in Capital			Retained Earnings / (Distributions in Excess of Earnings)
BALANCE AS OF DECEMBER 31, 2015	$	192,411	92,258,690		$	923		$	3,047,894		$	(70,262	)	$	3,170,966		$	63,620		$	3,234,586
Net income											261,050			261,050			7,330			268,380
Issuance of share-based compensation awards								1,339						1,339						1,339
Non-cash amortization of share-based compensation								19,303						19,303						19,303
Exercise of stock options			51,000					2,173						2,173						2,173
Repurchase of common stock, stock options and restricted stock units			(110,528	)	(1		)	(6,873		)				(6,874		)				(6,874		)
Settlement of restricted stock units for shares of common stock			72,130		1			(1		)				—						—
Issuance of common units in connection with acquisition																	48,033			48,033
Exchange of common units of the Operating Partnership			1,200					39						39			(39		)	—
Initial contribution from noncontrolling interest in consolidated property partnership, net of transaction costs								113,022						113,022			78,654			191,676
Distributions to noncontrolling interests in consolidated property partnerships																	(1,139		)	(1,139		)
Adjustment for noncontrolling interest								14,822						14,822			(14,822		)	—
Preferred dividends											(9,938		)	(9,938		)				(9,938		)
Dividends declared per common share and common unit ($1.10 per share/unit)											(102,743		)	(102,743		)	(2,894		)	(105,637		)
BALANCE AS OF SEPTEMBER 30, 2016	$	192,411	92,272,492		$	923		$	3,191,718		$	78,107		$	3,463,159		$	178,743		$	3,641,902

				Common Stock												Total Stock- holders’ Equity			Noncontrolling Interests			Total Equity
	Preferred Stock				Number of Shares		Common Stock			Additional Paid-in Capital			Distributions in Excess of Earnings
BALANCE AS OF DECEMBER 31, 2016	$	192,411			93,219,439		$	932		$	3,457,649		$	(107,997	)	$	3,542,995		$	216,322		$	3,759,317
Net income													136,083			136,083			11,992			148,075
Redemption of Series G and H Preferred stock (Note 7)	(192,411		)										(7,589		)	(200,000		)				(200,000		)
Issuance of common stock (Note 7)					4,427,500		44			308,768						308,812						308,812
Issuance of share-based compensation awards										5,291						5,291						5,291
Non-cash amortization of share-based compensation										19,013						19,013						19,013
Exercise of stock options (Note 9)					282,000		4			12,047						12,051						12,051
Settlement of restricted stock units for shares of common stock					317,848		3			(3		)				—						—
Repurchase of common stock, stock options and restricted stock units					(168,881	)	(2		)	(12,984		)				(12,986		)				(12,986		)
Exchange of common units of the Operating Partnership					304,350		3			10,936						10,939			(10,939		)	—
Contributions from noncontrolling interests in consolidated property partnerships																—			250			250
Distributions to noncontrolling interests in consolidated property partnerships																—			(12,234		)	(12,234		)
Adjustment for noncontrolling interest										(3,171		)				(3,171		)	3,171			—
Preferred dividends													(5,774		)	(5,774		)				(5,774		)
Dividends declared per common share and common unit ($1.225 per share/unit)													(123,390		)	(123,390		)	(2,545		)	(125,935		)
BALANCE AS OF SEPTEMBER 30, 2017	$	—			98,382,256		$	984		$	3,797,546		$	(108,667	)	$	3,689,863		$	206,017		$	3,895,880

See accompanying notes to consolidated financial statements.

3

KILROY REALTY CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited; in thousands)

	Nine Months Ended September 30,
	2017			2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	148,075		$	268,380
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	181,875			157,587
Depreciation of non-real estate furniture, fixtures and equipment	3,862			2,865
Increase in provision for bad debts	2,743			—
Non-cash amortization of share-based compensation awards	13,617			15,263
Non-cash amortization of deferred financing costs and debt discounts and premiums	2,398			2,020
Non-cash amortization of net below market rents	(6,026		)	(5,128		)
Gains on sales of depreciable operating properties (Note 2)	(39,507		)	(164,302		)
(Gain) loss on sale of land (Note 2)	(449		)	295
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(12,394		)	(9,700		)
Straight-line rents	(25,537		)	(22,856		)
Net change in other operating assets	(16,970		)	(7,263		)
Net change in other operating liabilities	24,855			15,444
Net cash provided by operating activities	276,542			252,605
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development properties and undeveloped land	(270,839		)	(222,719		)
Expenditures for operating properties and other capital assets	(61,875		)	(81,688		)
Net proceeds received from dispositions (Note 2)	182,492			325,031
(Increase) decrease in acquisition-related deposits	(30,490		)	1,902
Expenditures for acquisition of operating properties	—			(55,415		)
Expenditures for acquisition of undeveloped land	—			(33,513		)
Increase in note receivable	—			(1,000		)
Net cash used in investing activities	(180,712		)	(67,402		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock (Note 7)	308,812			—
Redemption of Series G and H Preferred stock (Note 7)	(200,000		)	—
Proceeds from the issuance of unsecured debt (Note 5)	250,000			—
Repayments of unsecured debt (Note 5)	(189,000		)	—
Borrowings on unsecured revolving credit facility	70,000			305,000
Repayments on unsecured revolving credit facility	(10,000		)	(305,000		)
Principal payments on secured debt	(5,740		)	(7,254		)
Financing costs	(7,480		)	(1,485		)
Repurchase of common stock and restricted stock units	(12,986		)	(6,874		)
Proceeds from exercise of stock options	12,051			2,173
Contributions from noncontrolling interests in consolidated property partnerships	250			191,676
Distributions to noncontrolling interests in consolidated property partnerships	(12,234		)	(1,139		)
Dividends and distributions paid to common stockholders and common unitholders	(297,993		)	(101,542		)
Dividends and distributions paid to preferred stockholders and preferred unitholders (Note 7)	(7,409		)	(9,938		)
Net cash (used in) provided by financing activities	(101,729		)	65,617
Net (decrease) increase in cash and cash equivalents and restricted cash	(5,899		)	250,820
Cash and cash equivalents and restricted cash, beginning of period	250,129			57,204
Cash and cash equivalents and restricted cash, end of period	$	244,230		$	308,024

See accompanying notes to consolidated financial statements.

4

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

KILROY REALTY, L.P.

CONSOLIDATED BALANCE SHEETS

(in thousands, except unit data)

	September 30, 2017			December 31, 2016
ASSETS	(unaudited)
REAL ESTATE ASSETS:
Land and improvements	$	1,076,172		$	1,108,971
Buildings and improvements	4,871,667			4,938,250
Undeveloped land and construction in progress	1,292,017			1,013,533
Total real estate assets held for investment	7,239,856			7,060,754
Accumulated depreciation and amortization	(1,216,358		)	(1,139,853		)
Total real estate assets held for investment, net	6,023,498			5,920,901
REAL ESTATE ASSETS AND OTHER ASSETS HELD FOR SALE, NET	—			9,417
CASH AND CASH EQUIVALENTS	64,954			193,418
RESTRICTED CASH (Note 2)	179,276			56,711
MARKETABLE SECURITIES (Note 11)	18,851			14,773
CURRENT RECEIVABLES, NET (Note 3)	18,626			13,460
DEFERRED RENT RECEIVABLES, NET (Note 3)	238,959			218,977
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET	185,420			208,368
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 4)	108,715			70,608
TOTAL ASSETS	$	6,838,299		$	6,706,633
LIABILITIES AND CAPITAL
LIABILITIES:
Secured debt, net (Notes 5 and 11)	$	465,828		$	472,772
Unsecured debt, net (Notes 5 and 11)	1,909,381			1,847,351
Unsecured line of credit (Notes 5 and 11)	60,000			—
Accounts payable, accrued expenses and other liabilities	271,405			202,391
Accrued distributions (Note 16)	43,324			222,306
Deferred revenue and acquisition-related intangible liabilities, net	145,556			150,360
Rents received in advance and tenant security deposits	46,925			52,080
Liabilities of real estate assets held for sale	—			56
Total liabilities	2,942,419			2,947,316
COMMITMENTS AND CONTINGENCIES (Note 10)
CAPITAL:
Partners’ Capital (Note 8):
6.875% Series G Cumulative Redeemable Preferred units, no units issued and outstanding at 9/30/2017, 4,000,000 units issued and outstanding ($100,000 liquidation preference) at 12/31/2016	—			96,155
6.375% Series H Cumulative Redeemable Preferred units, no units issued and outstanding at 9/30/2017, 4,000,000 units issued and outstanding ($100,000 liquidation preference) at 12/31/2016	—			96,256
Common units, 98,382,256 and 93,219,439 held by the general partner and 2,077,193and 2,381,543 held by common limited partners issued and outstanding, respectively	3,763,078			3,431,768
Total partners’ capital	3,763,078			3,624,179
Noncontrolling interests in consolidated property partnerships and subsidiaries (Note 1)	132,802			135,138
Total capital	3,895,880			3,759,317
TOTAL LIABILITIES AND CAPITAL	$	6,838,299		$	6,706,633

See accompanying notes to consolidated financial statements.

5

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,
	2017			2016			2017			2016
REVENUES
Rental income	$	159,954		$	146,539		$	475,527		$	423,947
Tenant reimbursements	19,665			16,406			58,228			43,948
Other property income	1,915			5,403			7,685			6,032
Total revenues	181,534			168,348			541,440			473,927
EXPENSES
Property expenses	33,070			30,050			97,615			85,236
Real estate taxes	16,371			14,501			50,878			39,378
Provision for bad debts	1,036			—			2,743			—
Ground leases	1,562			909			4,751			2,506
General and administrative expenses	14,514			13,533			43,750			40,949
Acquisition-related expenses (Note 1)	—			188			—			964
Depreciation and amortization	62,567			56,666			185,737			160,452
Total expenses	129,120			115,847			385,474			329,485
OTHER (EXPENSES) INCOME
Interest income and other net investment gains (Note 11)	1,526			538			3,629			1,120
Interest expense (Note 5)	(16,151		)	(14,976		)	(51,476		)	(41,189		)
Total other (expenses) income	(14,625		)	(14,438		)	(47,847		)	(40,069		)
INCOME FROM OPERATIONS BEFORE GAINS (LOSS) ON SALES OF REAL ESTATE	37,789			38,063			108,119			104,373
Net gain (loss) on sale of land (Note 2)	449			—			449			(295		)
Gains on sales of depreciable operating properties (Note 2)	37,250			18,312			39,507			164,302
NET INCOME	75,488			56,375			148,075			268,380
Net income attributable to noncontrolling interests in consolidated property partnerships and subsidiaries	(3,086		)	(1,121		)	(9,648		)	(1,703		)
NET INCOME ATTRIBUTABLE TO KILROY REALTY, L.P.	72,402			55,254			138,427			266,677
Preferred distributions	(808		)	(3,313		)	(5,774		)	(9,938		)
Original issuance costs of redeemed preferred units (Note 8)	(3,744		)	—			(7,589		)	—
Total preferred distributions	(4,552		)	(3,313		)	(13,363		)	(9,938		)
NET INCOME AVAILABLE TO COMMON UNITHOLDERS	$	67,850		$	51,941		$	125,064		$	256,739
Net income available to common unitholders per unit – basic (Note 13)	$	0.67		$	0.54		$	1.23		$	2.70
Net income available to common unitholders per unit – diluted (Note 13)	$	0.67		$	0.54		$	1.23		$	2.68
Weighted average common units outstanding – basic (Note 13)	100,429,332			94,858,292			100,160,595			94,630,183
Weighted average common units outstanding – diluted (Note 13)	100,988,805			95,551,682			100,742,863			95,241,199
Dividends declared per common unit	$	0.425		$	0.375		$	1.225		$	1.100

See accompanying notes to consolidated financial statements.

6

KILROY REALTY, L.P.

CONSOLIDATED STATEMENTS OF CAPITAL

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

	Partners’ Capital							Total Partners’ Capital			Noncontrolling Interests in Consolidated Property Partnerships and Subsidiaries
	Preferred Units		Number of Common Units		Common Units									Total Capital
BALANCE AS OF DECEMBER 31, 2015	$	192,411	94,023,465		$	3,031,609		$	3,224,020		$	10,566		$	3,234,586
Net income					266,677			266,677			1,703			268,380
Issuance of common units in connection with acquisition			867,701		48,033			48,033						48,033
Issuance of share-based compensation awards					1,339			1,339						1,339
Non-cash amortization of share-based compensation					19,303			19,303						19,303
Exercise of stock options			51,000		2,173			2,173						2,173
Repurchase of common units, stock options and restricted stock units			(110,528	)	(6,874		)	(6,874		)				(6,874		)
Settlement of restricted stock units			72,130		—			—						—
Initial contribution from noncontrolling interest in consolidated property partnership, net of transaction costs					113,022			113,022			78,654			191,676
Distributions to noncontrolling interests in consolidated property partnerships											(1,139		)	(1,139		)
Preferred distributions					(9,938		)	(9,938		)				(9,938		)
Distributions declared per common unit ($1.10 per unit)					(105,637		)	(105,637		)				(105,637		)
BALANCE AS OF SEPTEMBER 30, 2016	$	192,411	94,903,768		$	3,359,707		$	3,552,118		$	89,784		$	3,641,902

	Partners’ Capital								Total Partners’ Capital			Noncontrolling Interests in Consolidated Property Partnerships and Subsidiaries
	Preferred Units			Number of Common Units		Common Units									Total Capital
BALANCE AS OF DECEMBER 31, 2016	$	192,411		95,600,982		$	3,431,768		$	3,624,179		$	135,138		$	3,759,317
Net income						138,427			138,427			9,648			148,075
Redemption of Series G and H Preferred units (Note 8)	(192,411		)			(7,589		)	(200,000		)				(200,000		)
Issuance of common units (Note 8)				4,427,500		308,812			308,812						308,812
Issuance of share-based compensation awards						5,291			5,291						5,291
Non-cash amortization of share-based compensation						19,013			19,013						19,013
Exercise of stock options (Note 9)				282,000		12,051			12,051						12,051
Settlement of restricted stock units				317,848		—			—						—
Repurchase of common units, stock options and restricted stock units				(168,881	)	(12,986		)	(12,986		)				(12,986		)
Contributions from noncontrolling interests in consolidated property partnerships												250			250
Distributions to noncontrolling interests in consolidated property partnerships												(12,234		)	(12,234		)
Preferred distributions						(5,774		)	(5,774		)				(5,774		)
Distributions declared per common unit ($1.225 per unit)						(125,935		)	(125,935		)				(125,935		)
BALANCE AS OF SEPTEMBER 30, 2017	$	—		100,459,449		$	3,763,078		$	3,763,078		$	132,802		$	3,895,880

See accompanying notes to consolidated financial statements.

7

KILROY REALTY, L.P.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited; in thousands)

	Nine Months Ended September 30,
	2017			2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	148,075		$	268,380
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	181,875			157,587
Depreciation of non-real estate furniture, fixtures and equipment	3,862			2,865
Increase in provision for bad debts	2,743			—
Non-cash amortization of share-based compensation awards	13,617			15,263
Non-cash amortization of deferred financing costs and debt discounts and premiums	2,398			2,020
Non-cash amortization of net below market rents	(6,026		)	(5,128		)
Gains on sales of depreciable operating properties (Note 2)	(39,507		)	(164,302		)
(Gain) loss on sale of land (Note 2)	(449		)	295
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(12,394		)	(9,700		)
Straight-line rents	(25,537		)	(22,856		)
Net change in other operating assets	(16,970		)	(7,263		)
Net change in other operating liabilities	24,855			15,444
Net cash provided by operating activities	276,542			252,605
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development properties and undeveloped land	(270,839		)	(222,719		)
Expenditures for operating properties and other capital assets	(61,875		)	(81,688		)
Net proceeds received from dispositions (Note 2)	182,492			325,031
(Increase) decrease in acquisition-related deposits	(30,490		)	1,902
Expenditures for acquisition of operating properties	—			(55,415		)
Expenditures for acquisition of undeveloped land	—			(33,513		)
Increase in note receivable	—			(1,000		)
Net cash used in investing activities	(180,712		)	(67,402		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common units (Note 8)	308,812			—
Redemption of Series G and H Preferred units (Note 8)	(200,000		)	—
Proceeds from the issuance of unsecured debt (Note 5)	250,000			—
Repayments of unsecured debt (Note 5)	(189,000		)	—
Borrowings on unsecured revolving credit facility	70,000			305,000
Repayments on unsecured revolving credit facility	(10,000		)	(305,000		)
Principal payments on secured debt	(5,740		)	(7,254		)
Financing costs	(7,480		)	(1,485		)
Repurchase of common units and restricted stock units	(12,986		)	(6,874		)
Proceeds from exercise of stock options	12,051			2,173
Contributions from noncontrolling interests in consolidated property partnerships	250			191,676
Distributions to noncontrolling interests in consolidated property partnerships	(12,234		)	(1,139		)
Distributions paid to common unitholders	(297,993		)	(101,542		)
Distributions paid to preferred unitholders (Note 8)	(7,409		)	(9,938		)
Net cash (used in) provided by financing activities	(101,729		)	65,617
Net (decrease) increase in cash and cash equivalents and restricted cash	(5,899		)	250,820
Cash and cash equivalents and restricted cash, beginning of period	250,129			57,204
Cash and cash equivalents and restricted cash, end of period	$	244,230		$	308,024

See accompanying notes to consolidated financial statements.

8

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

1.    Organization and Basis of Presentation

Organization

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 Los Angeles, Orange County, 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”) and Kilroy Realty Finance Partnership, L.P. (the “Finance 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, 2017:

	Number of Buildings	Rentable Square Feet (unaudited)	Number of Tenants	Percentage  Occupied (unaudited)		Percentage Leased (unaudited)
Stabilized Office Properties	101	13,720,598	515	94.0	%	96.2	%

	Number of Buildings	Number of Units	Percentage  Occupied (unaudited)		Percentage Leased (unaudited)
Stabilized Residential Property	1	200	72.0	%	74.5	%

Our stabilized portfolio includes all of our properties with the exception of development and redevelopment properties currently under construction or committed for construction, “lease-up” properties, real estate assets held for sale and undeveloped land. 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 “lease-up” properties as office properties we recently developed or redeveloped that have not yet reached 95% occupancy and are within one year following cessation of major construction activities. There were no operating properties in “lease-up” or held for sale as of September 30, 2017.

During the nine months ended September 30, 2017, we added one development project to our stabilized office portfolio consisting of 365,359 rentable square feet in Hollywood, California. As of September 30, 2017, the following properties were excluded from our stabilized portfolio. We did not have any redevelopment properties at September 30, 2017.

	Number of Properties/Projects	Estimated Rentable Square Feet (1)
Development projects under construction (2)	4	1,800,000

________________________

(1) Estimated rentable square feet upon completion.

(2) Development projects under construction also include 96,000 square feet of retail space and 237 residential units in addition to the estimated office rentable square feet noted above.

Our stabilized portfolio also excludes our near-term and future development pipeline, which as of September 30, 2017 was comprised offivedevelopment sites, representing approximately 47gross acres of undeveloped land.

9

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

As of September 30, 2017, 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 twelve office properties and one development project under construction 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 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, 2017, the Company owned a 56% common equity interest in both 100 First LLC and 303 Second LLC. The third property partnership, Redwood City Partners, LLC (“Redwood LLC”) owned two office properties in Redwood City, California. As of September 30, 2017, 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, the Finance Partnership, Kilroy Services, LLC (“KSLLC”), 100 First LLC, 303 Second 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, the Finance Partnership, KSLLC, 100 First LLC, 303 Second LLC, Redwood LLC and all wholly-owned and controlled subsidiaries of the Operating Partnership. All intercompany balances and transactions have been eliminated in the consolidated financial statements.

As of September 30, 2017, the Company owned an approximate 97.9% common general partnership interest in the Operating Partnership. The remaining approximate 2.1% common limited partnership interest in the Operating Partnership as of September 30, 2017 was owned by non-affiliated investors and certain of our executive officers and directors (see Note 6). 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.”

Kilroy Realty Finance, Inc., which is a wholly-owned subsidiary of the Company, is the sole general partner of the Finance Partnership and owns a 1.0% common general partnership interest in the Finance Partnership. The Operating Partnership owns the remaining 99.0% common limited partnership interest. We conduct substantially all of our development activities through KSLLC, which is a wholly owned subsidiary of the Operating Partnership. 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, 2017. 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, 2016.

Variable Interest Entities

The Operating Partnership is a variable interest entity (“VIE”) of the Company 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, 2017, 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, 2017, 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 VIE’s economic performance. As of September 30, 2017, these two VIEs’ total assets, liabilities and noncontrolling interests included on our consolidated balance sheet were approximately $429.4 million (of which $383.7 million related to real estate held for investment), approximately $151.4 million and approximately $121.8 million, respectively. Revenues, income and net assets

10

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

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

At December 31, 2016, the consolidated financial statements of the Company and the Operating Partnership included three VIEs in which we were deemed to be the primary beneficiary: 100 First LLC, 303 Second LLC and an entity established during the fourth quarter of 2016 to facilitate a transaction intended to qualify as a like-kind exchange pursuant to Section 1031 of the Code (“Section 1031 Exchange”). In January 2017, the Section 1031 Exchange was successfully completed and the entity established for the 1031 Exchange was no longer a VIE. At December 31, 2016, the impact of consolidating the VIEs increased the Company’s total assets, liabilities and noncontrolling interests on our consolidated balance sheet by approximately $654.3 million (of which $588.6 million related to real estate held for investment), approximately $166.1 million and approximately $124.3 million, respectively.

Adoption of New Accounting Pronouncements

Effective January 1, 2017, the Company adopted FASB ASU No. 2017-01 (“ASU 2017-01”) which clarifies the framework for determining whether an integrated set of assets and activities meets the definition of a business. The revised framework provides a screen for determining whether an integrated set of assets is a business combination or an asset acquisition and clarifies that when substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or a group of similar assets, the set of assets and activities is deemed not to meet the definition of a business. As a result of our adoption of the guidance, which we adopted on a prospective basis, the Company expects that most of our future acquisitions of operating properties and development properties that were previously accounted for as business combinations will instead be accounted for as asset acquisitions under the new guidance. In addition, we expect that most of the transaction costs associated with these future acquisitions will be capitalized as part of the purchase price of the acquisition instead of being expensed as incurred to acquisition-related expenses. The Company did not have any acquisitions of operating properties during the nine months ended September 30, 2017.

Also effective January 1, 2017, the Company adopted ASU No. 2016-18 (“ASU 2016-18”) which requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. The Company adopted ASU 2016-18 on a retrospective basis. Therefore, amounts generally described as restricted cash and restricted cash equivalents are included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the Company’s consolidated statements of cash flows for the nine months ended September 30, 2017 and 2016. As a result of the adoption of ASU 2016-18, the change in restricted cash is no longer presented as a separate line item within cash flows from investing activities on the Company’s consolidated statements of cash flows since such balances are now included in total cash at both the beginning and end of the reporting period. As a result, for the nine months ended September 30, 2016, the Company had net cash used in investing activities of $67.4 million instead of net cash used in investing activities of $124.2 million as previously reported since the Company had an increase in restricted cash of $56.8 million during the nine months ended September 30, 2016 primarily due to $48.4 million of restricted cash that was held at qualified intermediaries to facilitate potential future Section1031 Exchanges.

In addition, effective January 1, 2017, the Company adopted ASU No. 2016-09 (“ASU 2016-09”) which simplified several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The adoption of this guidance did not have an impact on our consolidated financial statements or notes to our consolidated financial statements.

Recently Issued Accounting Pronouncements

ASU No. 2016-02 “Leases (Topic 842)”

On February 25, 2016, the FASB issued ASU No. 2016-02 (“ASU 2016-02”) to amend the accounting guidance for leases. The accounting applied by a lessor is largely unchanged under ASU 2016-02. However, the standard requires lessees to recognize lease assets and lease liabilities for leases classified as operating leases on the balance sheet. Lessees will recognize in the statement of financial position a liability to make lease payments and a right-of-use asset representing its right to use the underlying asset for the lease term. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it will recognize lease expense for such leases generally on a straight-line basis over the lease term. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018 and early adoption is permitted.

We are currently conducting our evaluation of the impact of the guidance on our consolidated financial statements and have an active project team working on the evaluation and implementation of the guidance. We currently believe that the adoption of

11

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

the standard will not significantly change the accounting for operating leases on our consolidated balance sheets where we are the lessor, and that such leases will be accounted for in a similar method to existing standards with the underlying leased asset being reported and recognized as a real estate asset. We currently expect that certain non-lease components will need to be accounted for separately from the lease components, with the lease components continuing to be recognized on a straight-line basis over the term of the lease and certain non-lease components (such as common area maintenance) being accounted for under the new revenue recognition guidance in ASU 2014-09 discussed below, even when revenue for such non-lease components is not separately stipulated in the lease. In addition, under ASU 2016-02, lessors will only be permitted to capitalize and amortize incremental direct leasing costs. As a result, we expect that upon the adoption of the standard, we will no longer be able to capitalize and amortize certain leasing related costs and instead will expense these costs as incurred. We currently expect this could have a material impact to the Company’s results of operations upon adoption of the standard.

For leases where we are the lessee, specifically for our ground leases, we currently believe that the adoption of the standard will significantly change the accounting on our consolidated balance sheets since both existing ground leases and any future ground leases will be required to be recorded on the Company’s consolidated balance sheets as an obligation of the Company. We currently believe that existing ground leases executed before the January 1, 2019 adoption date will continue to be accounted for as operating leases and will not have a material impact on our recognition of ground lease expense or our results of operations. However, we believe that we will be required to recognize a right of use asset and a lease liability on our consolidated balance sheets equal to the present value of the minimum lease payments required in accordance with each ground lease. As of September 30, 2017, our future undiscounted minimum rental payments under these leases totaled$252.8 million, with several of the leases containing provisions for rental payments to fluctuate based on fair market value and operating income measurements with expirations through 2093. In addition, we currently believe that for new ground leases entered into after the adoption date of the new standard, such leases could be required to be accounted for as a financing type lease, resulting in ground lease expense recorded using the effective interest method instead of on a straight-line basis over the term of the lease. This could have a significant impact on our results of operations if we enter into material new ground leases after the date of adoption since ground lease expense calculated using the effective interest method results in an increased amount of ground lease expense in the earlier years of a ground lease as compared to the current straight-line method.

We will adopt the guidance on a modified retrospective basis as required by ASU 2016-02. We are in the process of evaluating whether we will elect to apply the practical expedients identified in the standard but currently believe that we may do so.

ASU No. 2014-09 “Revenue From Contracts with Customers (Topic 606)”

In May 2014, the FASB issued ASU 2014-09 “Revenue From Contracts with Customers (Topic 606)” (“ASU 2014-09”). The objective of ASU 2014-09 is to establish a single comprehensive model for entities to use in accounting for revenue from contracts with customers and will supersede most of the existing revenue recognition guidance. On May 9, 2016 and December 21, 2016, the FASB issued ASU No. 2016-12 and ASU No. 2016-20, which provides practical expedients, technical corrections, and improvements for certain aspects of ASU No. 2014-09. Public business entities may elect to adopt the amendments as of the original effective date; however, adoption is required for annual reporting periods beginning after December 15, 2017.

We have compiled an inventory of the sources of revenue that will be impacted by ASU 2014-09. Specifically, we have evaluated the impact of the guidance on timing of gain recognition for dispositions and currently do not believe there will be a material impact to our consolidated financial statements given the simplicity of the Company’s historical disposition transactions. In addition, we currently believe that certain non-lease components of revenue from leases such as common area maintenance and certain types of parking revenue may be impacted by ASU 2014-09 when we adopt ASU 2016-02 on January 1, 2019. We are in the process of evaluating the impact on these non-lease revenue components and currently believe the impact will be limited to the income statement presentation of revenue and not the total amount of revenue recognized.

Other Recently Issued Pronouncements

On May 10, 2017, the FASB issued ASU No. 2017-09 “Compensation - Stock Compensation (Topic 718)” to clarify the scope of modification accounting. Under the guidance, an entity will not apply modification accounting to a share-based payment award if the award’s fair value, vesting conditions, and classification as an equity or liability instrument remain the same immediately before and after the change. The guidance is effective for annual periods beginning after December 15, 2017 and early adoption is permitted. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

On February 22, 2017, the FASB issued ASU No. 2017-05 “Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20)” (“ASU 2017-05”) to provide guidance and clarify the scope of the original guidance within Subtopic 610-20 “Gains and Losses from the Derecognition of Nonfinancial Assets” that was issued in connection with ASU

12

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

2014-09, which provided guidance for recognizing gains and losses from the transfer of nonfinancial assets in transactions with noncustomers. ASU 2017-05 additionally adds guidance pertaining to the partial sales of real estate and clarifies that nonfinancial assets within the scope of Accounting Standards Codification Subtopic 610-20 may include nonfinancial assets transferred within a legal entity to a counterparty. For example, a parent may transfer control of nonfinancial assets by transferring ownership interests in a consolidated subsidiary. ASU 2017-05 is effective for fiscal years beginning after December 15, 2017, with early application permitted for fiscal years beginning after December 15, 2016. We are currently evaluating the impact of ASU 2017-05 on our consolidated financial statements and currently do not anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

On August 26, 2016, the FASB issued ASU No. 2016-15 (“ASU 2016-15”) to provide guidance for areas where there is diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. ASU 2016-15 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

On June 16, 2016, the FASB issued ASU No. 2016-13 (“ASU 2016-13”) to amend 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.  ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

On January 5, 2016, the FASB issued ASU No. 2016-01 (“ASU 2016-01”) to amend the accounting guidance on the classification and measurement of financial instruments. The standard requires that all investments in equity securities, including other ownership interests, are carried at fair value through net income. This requirement does not apply to investments that qualify for equity method accounting or to those that result in consolidation of the investee or for which the entity has elected the predictability exception to fair value measurement. Additionally, the standard requires that the portion of the total fair value change caused by a change in instrument-specific credit risk for financial liabilities for which the fair value option has been elected would be recognized in other comprehensive income. Any accumulated amount remaining in other comprehensive income is reclassified to earnings when the liability is extinguished. ASU 2016-01 is effective for fiscal years beginning after December 15, 2017. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

2.    Dispositions

The following table summarizes the properties sold during the nine months ended September 30, 2017.

Location	Property Type	Month of Disposition	Number of Buildings	Rentable Square Feet	Sales Price (1) (in millions)
5717 Pacific Center Boulevard, San Diego, CA (2)	Office	January	1	67,995	$	12.1
Sorrento Mesa and Mission Valley Properties (3)	Office	September	10	675,143	174.5
Total Dispositions			11	743,138	$	186.6

________________________ 

(1) Represents gross sales price before the impact of broker commissions and closing costs.

(2) This property was classified as held for sale at December 31, 2016.

(3) The Sorrento Mesa and Mission Valley Properties includes the following properties: 10390, 10394, 10398, 10421, 10445 and 10455 Pacific Center Court, 2355, 2365, 2375 and 2385 Northside Drive and Pacific Corporate Center - Lot 8, a 5.0 acre undeveloped land parcel.

The total gain on the operating properties and land sold during the nine months ended September 30, 2017 was $39.5 million and $0.4 million, respectively. As of September 30, 2017, approximately $170.6 million of net proceeds related to the Sorrento Mesa and Mission Valley Properties disposition were temporarily being held at qualified intermediaries, at our direction, for the purpose of facilitating potential future Section 1031 Exchanges. The cash proceeds are included in restricted cash on our consolidated balance sheets as of September 30, 2017.

13

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

3.    Receivables

Current Receivables, net

Current receivables, net is primarily comprised of contractual rents and other lease-related obligations due from tenants. The balance consisted of the following as of September 30, 2017 and December 31, 2016:

	September 30, 2017			December 31, 2016
	(in thousands)
Current receivables	$	20,746		$	15,172
Allowance for uncollectible tenant receivables	(2,120		)	(1,712		)
Current receivables, net	$	18,626		$	13,460

Deferred Rent Receivables, net

Deferred rent receivables, net consisted of the following as of September 30, 2017 and December 31, 2016:

	September 30, 2017			December 31, 2016
	(in thousands)
Deferred rent receivables	$	241,929		$	220,501
Allowance for deferred rent receivables	(2,970		)	(1,524		)
Deferred rent receivables, net	$	238,959		$	218,977

4.    Prepaid Expenses and Other Assets, Net

Prepaid expenses and other assets, net consisted of the following at September 30, 2017 and December 31, 2016:

	September 30, 2017		December 31, 2016
	(in thousands)
Furniture, fixtures and other long-lived assets, net	$	39,889	$	40,395
Notes receivable (1)	19,838		19,439
Prepaid expenses & acquisition deposits	48,988		10,774
Total prepaid expenses and other assets, net	$	108,715	$	70,608

_______________

(1) Approximately $15.1 millionof our notes receivable are secured by real estate.

5.    Secured and Unsecured Debt of the Operating Partnership

Unsecured Senior Notes - Private Placement

On February 17, 2017, the Operating Partnership issued the $175.0 million principal amount of its 3.35% Senior Notes, Series A, due February 17, 2027 (the “Series A Notes”), and the $75.0 million principal amount of its 3.45% Senior Notes, Series B, due February 17, 2029 (the “Series B Notes” and, together with the Series A Notes, the “Series A and B Notes”). The Series A and B Notes were issued pursuant to a delayed draw option under a Note Purchase Agreement entered into in connection with a private placement in September 2016. As of September 30, 2017, there was $175.0 million and $75.0 million issued and outstanding aggregate principal amount of Series A and B Notes, respectively. The Series A Notes mature on February 17, 2027, and the Series B Notes mature on February 17, 2029, unless earlier redeemed or prepaid pursuant to the terms of the Note Purchase Agreement. Interest on the Series A and B Notes is payable semi-annually in arrears on February 17 and August 17 of each year.

The Operating Partnership may, at its option and upon notice to the purchasers of the Series A and B Notes, prepay at any time all, or from time to time, any part of the Series A and B Notes then outstanding (in an amount not less than 5% of the aggregate principal amount of the Series A and B Notes 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.

14

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

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

Unsecured Revolving Credit Facility and Term Loan Facility

In July 2017, the Operating Partnership amended and restated the terms of its unsecured revolving credit facility and unsecured term loan facility (together, the “Facility”). The amendment and restatement increased the size of the unsecured revolving credit facility from $600.0 million to $750.0 million, maintained the size of the unsecured term loan facility of $150.0 million, reduced the borrowing costs and extended the maturity date of the Facility to July 2022. The unsecured term loan facility features two six-month delayed draw options.

The following table summarizes the balance and terms of our unsecured revolving credit facility as of September 30, 2017 and December 31, 2016:

	September 30, 2017			December 31, 2016
	(in thousands)
Outstanding borrowings	$	60,000		$	—
Remaining borrowing capacity	690,000			600,000
Total borrowing capacity (1)	$	750,000		$	600,000
Interest rate (2)	2.24		%	1.82		%
Facility fee-annual rate (3)	0.200%
Maturity date	July 2022			July 2019

________________________

(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 an annual rate of LIBOR plus 1.000% and LIBOR plus 1.050% as of September 30, 2017 and December 31, 2016, respectively.

(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, 2017 and December 31, 2016, $6.3 millionand $3.3 million of unamortized deferred financing costs, respectively, remained to be amortized through the maturity date of our unsecured revolving credit facility, which are included in prepaid expenses and other assets, net on our consolidated balance sheets.

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 and to potentially repay long-term debt.

The following table summarizes the balance and terms of our unsecured term loan facility as of September 30, 2017 and December 31, 2016:

	September 30, 2017			December 31, 2016
	(in thousands)
Outstanding borrowings (1)	$	—		$	150,000
Remaining borrowing capacity	150,000			—
Total borrowing capacity (2)	$	150,000		$	150,000
Interest rate (3)	2.33		%	1.85		%
Undrawn facility fee-annual rate (4)	0.200		%	—		%
Maturity date	July 2022			July 2019

________________________

(1) In July 2017, the unsecured term loan facility was paid down and the Facility was amended to include two, six-month delayed draw options on the unsecured term loan facility. The Company may draw on the unsecured term loan facility through July 2018, at which time the outstanding balance will become the balance of the unsecured term loan facility and no additional draws may be made. However, if the Company does not draw at least $75.0 million by the end of first option term in January 2018, the total borrowing capacity under the Facility will be reduced by 50% of the unutilized borrowing capacity at that time. The Company intends to draw $75.0 million prior to the end of the first option term in January 2018.

(2) As of September 30, 2017 and December 31, 2016, $1.2 million and $0.7 million of unamortized deferred financing costs, respectively, remained to be amortized through the maturity date of our unsecured term loan facility.

(3) Our unsecured term loan facility interest rate was calculated based on an annual rate of LIBOR plus 1.100% and LIBOR plus 1.150% as of September 30, 2017 and December 31, 2016, respectively.

(4) In July 2017, the Facility was amended to include a facility fee on the remaining borrowing capacity of the unsecured term loan facility, which is paid on a monthly basis.

15

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Additionally, as of December 31, 2016 the Operating Partnership had a $39.0 million unsecured term loan outstanding with an annual interest rate of LIBOR plus 1.150% that was to mature in July 2019. As of December 31, 2016, $0.2 million of unamortized deferred financing costs remained to be amortized through the maturity date of our unsecured term loan. Concurrently with the amendment of the Facility, the Operating Partnership repaid its $39.0 million unsecured term loan.

Debt Covenants and Restrictions

The unsecured revolving credit facility, the unsecured term loan facility, the unsecured term loan, the unsecured senior notes, the Series A and B Notes 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, 2017.

Debt Maturities

The following table summarizes the stated debt maturities and scheduled amortization payments of our issued and outstanding debt, excluding unamortized debt discounts, premiums and deferred financing costs, as of September 30, 2017:

Year	(in thousands)
Remaining 2017	$	1,545
2018	451,669
2019	76,309
2020	255,137
2021	5,342
Thereafter	1,659,023
Total (1)	$	2,449,025

________________________

(1) Includes gross principal balance of outstanding debt before the effect of the following at September 30, 2017: $10.9 million of unamortized deferred financing costs, $6.0 million of unamortized discounts for the unsecured senior notes and $3.0 million of unamortized premiums for the secured debt.

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, 2017 and 2016. 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,
	2017			2016			2017			2016
	(in thousands)
Gross interest expense	$	28,331		$	26,184		$	84,577		$	79,027
Capitalized interest and deferred financing costs	(12,180		)	(11,208		)	(33,101		)	(37,838		)
Interest expense	$	16,151		$	14,976		$	51,476		$	41,189

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

Common Units of the Operating Partnership

The Company owned an approximate 97.9%, 97.5% and 97.2% common general partnership interest in the Operating Partnership as of September 30, 2017, December 31, 2016 and September 30, 2016, respectively. The remaining approximate 2.1%, 2.5% and 2.8% common limited partnership interest as of September 30, 2017, December 31, 2016 and September 30, 2016, respectively, was owned by non-affiliated investors and certain of our executive officers and directors in the form of noncontrolling common units. There were 2,077,193, 2,381,543 and 2,631,276common units outstanding held by these investors, executive officers and directors as of September 30, 2017, December 31, 2016 and September 30, 2016, respectively.

16

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

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 $145.6 million and $174.9 million as of September 30, 2017 and December 31, 2016, 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.

7.    Stockholders’ Equity of the Company

Preferred Stock Redemption

On August 15, 2017, the Company redeemed all 4,000,000 shares of its 6.375% Series H Cumulative Redeemable Preferred Stock (“Series H Preferred Stock”). The shares of Series H Preferred Stock were redeemed at a redemption price equal to their stated liquidation preference of $25.00 per share, representing $100.0 million in aggregate. The redemption payment did not include any additional accrued dividends because the redemption date was also the dividend payment date.

On March 30, 2017 (the “Series G Redemption Date”), the Company redeemed all 4,000,000 shares of its 6.875% Series G Cumulative Redeemable Preferred Stock (“Series G Preferred Stock”). The shares of Series G Preferred Stock were redeemed at a redemption price equal to their stated liquidation preference of $25.00 per share, representing $100.0 million in aggregate, plus all accrued and unpaid dividends to the Series G Redemption Date.

During the three and nine months ended September 30, 2017, we recognized non-recurring non-cash charges of $3.7 million and $7.6 million, respectively, as a reduction to net income available to common stockholders for the original issuance costs related to the Series G and Series H Preferred Stock.

Common Stock Issuance

In January 2017, the Company completed an underwritten public offering of 4,427,500 shares of its common stock. The net offering proceeds, after deducting underwriting discounts and offering expenses, were approximately $308.8 million. We used a portion of the proceeds to partially fund our 2016 special dividend and used the remaining proceeds for general corporate uses, to fund development expenditures and to repay outstanding indebtedness.

At-The-Market Stock Offering Program

Under our current at-the-market stock offering program, which commenced in December 2014, we may offer and sell shares of our common stock having an aggregate gross sales price of up to $300.0 million from time to time in “at-the-market” offerings. No shares of common stock were sold under this program during the nine months ended September 30, 2017. Since commencement of the program through September 30, 2017, we have sold 2,459,165 shares of common stock having an aggregate gross sales price of $182.4 million. As of September 30, 2017, shares of common stock having an aggregate gross sales price of up to $117.6 million remain available to be sold under this program. 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.

Payment of 2016 Special Cash Dividend

On January 13, 2017, the Company paid $184.3 million of special cash dividends, which was the equivalent of $1.90 of special cash dividend per share of common stock to stockholders of record on December 30, 2016. This special dividend payment was in addition to the $36.4 million of regular dividends we also paid on January 13, 2017 to common stockholders, unitholders and RSU holders of record on December 30, 2016.

17

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

8.    Partners’ Capital of the Operating Partnership

Preferred Stock Redemption

On August 15, 2017, the Company redeemed all 4,000,000 shares of its 6.375% Series H Preferred Stock. For each share of Series H Preferred Stock that was outstanding, the Company had an equivalent number of 6.375% Series H Preferred Units (“Series H Preferred Units”) outstanding with substantially similar terms as the Series H Preferred Stock. In connection with the redemption of the Series H Preferred Stock, the Series H Preferred Units held by the Company were redeemed by the Operating Partnership.

On March 30, 2017, the Company redeemed all 4,000,000 shares of its 6.875% Series G Preferred Stock. For each share of Series G Preferred Stock that was outstanding, the Company had an equivalent number of 6.875% Series G Preferred Units (“Series G Preferred Units”) outstanding with substantially similar terms as the Series G Preferred Stock. In connection with the redemption of the Series G Preferred Stock, the Series G Preferred Units held by the Company were redeemed by the Operating Partnership.

Issuance of Common Units

In January 2017, the Company completed an underwritten public offering of 4,427,500 shares of its common stock as discussed in Note 7. The net offering proceeds of approximately $308.8 million were contributed by the Company to the Operating Partnership in exchange for 4,427,500 common units.

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, 2017		December 31, 2016		September 30, 2016
Company owned common units in the Operating Partnership	98,382,256		93,219,439		92,272,492
Company owned general partnership interest	97.9	%	97.5	%	97.2	%
Noncontrolling common units of the Operating Partnership	2,077,193		2,381,543		2,631,276
Ownership interest of noncontrolling interest	2.1	%	2.5	%	2.8	%

For further discussion of the noncontrolling common units as of September 30, 2017 and December 31, 2016, refer to Note 6.

9.    Share-Based Compensation

Stockholder Approved Equity Compensation Plans

As of September 30, 2017, we maintained one share-based incentive compensation plan, the Kilroy Realty 2006 Incentive Award Plan, as amended (the “2006 Plan”). As of September 30, 2017, 2,004,127 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 target levels for the performance or market conditions (as defined below) for awards still in a performance period.

2017 Share-Based Compensation Grants

In February 2017, the Executive Compensation Committee of the Company’s Board of Directors awarded 229,976 restricted stock units (“RSUs”) to certain officers of the Company under the 2006 Plan, which included 130,956 RSUs (at the target level of performance), or 57%, that are subject to market and/or performance-based vesting requirements (the “2017 Performance-Based RSUs”) and 99,020 RSUs, or 43%, that are subject to time-based vesting requirements (the “2017 Time-Based RSUs”).

18

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

2017 Performance-Based RSU Grant

The 2017 Performance-Based RSUs are scheduled to vest at the end of a three-year period based upon the achievement of pre-set FFO per share goals for the year ending December 31, 2017 (the “FFO performance condition”) and also based upon either the average FAD per share growth or the Company’s average debt to EBITDA ratio (the “other performance conditions”) or the average annual relative total stockholder return ranking for the Company compared to an established comparison group of companies (the “market condition”) for the three-year period ending December 31, 2019. The 2017 Performance-Based RSUs are also subject to a three-year service vesting provision and are scheduled to cliff vest at the end of the three-year period. The number of 2017 Performance-Based RSUs ultimately earned could fluctuate from the target number of 2017 Performance-Based RSUs granted based upon the levels of achievement for the FFO performance condition, the other performance conditions and the market condition. The estimate of the number of 2017 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. As of September 30, 2017, the number of 2017 Performance-Based RSUs estimated to be earned based on the Company’s estimate of the performance conditions measured against the applicable goals was 130,956, and the compensation cost recorded to date for this program was based on that estimate. Compensation expense for the 2017 Performance-Based RSU grant will be recorded on a straight-line basis over the three-year period.

Each 2017 Performance-Based RSU represents the right, subject to the applicable vesting conditions, to receive one share of our common stock in the future. The total fair value of the 2017 Performance-Based RSU grant was $10.3 million at February 24, 2017. The determination of the fair value of the 2017 Performance-Based RSU grant with other performance conditions takes into consideration the likelihood of achievement of the FFO performance condition and the other performance conditions. The grant date fair value for the performance awards with a market condition was calculated using a Monte Carlo simulation pricing model based on the assumptions in the table below. For the portion of the 2017 Performance-Based RSUs subject to the market condition, for the nine months ended September 30, 2017, we recorded compensation expense based upon the $80.89 fair value at February 24, 2017. The following table summarizes the assumptions utilized in the Monte Carlo simulation pricing model:

	Fair Value Assumptions
Fair value per share at February 24, 2017	$80.89
Expected share price volatility	21.00%
Risk-free interest rate	1.39%
Remaining expected life	2.8 years

The computation of expected volatility is based on a blend of the historical volatility of our shares of common stock over approximately 5.6 years, as that is expected to be most consistent with future volatility and equates to a time period twice as long as the approximate 2.8-year remaining 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 February 24, 2017. The expected life of the RSUs is equal to the remaining 2.8 year vesting period as of February 24, 2017.

2017 Time-Based RSU Grant

The 2017 Time-Based RSUs are scheduled to vest in three equal installments beginning on January 5, 2018 through January 5, 2020. Compensation expense for the 2017 Time-Based RSUs will be recognized on a straight-line basis over the three-year service vesting period. Each 2017 Time-Based RSU represents the right to receive one share of our common stock in the future. The total fair value of the 2017 Time-Based RSU grant was $7.5 million, which was based on the $73.30 and $77.16 closing share prices of the Company’s common stock on the NYSE on the February 3, 2017 and February 24, 2017 grant dates, respectively.

Share-Based Award Activity

During the nine months ended September 30, 2017, 282,000 non-qualified stock options were exercised at an exercise price per share equal to $42.61. As of September 30, 2017, there were 29,500 stock options outstanding.

Share-Based Compensation Cost Recorded During the Period

The total compensation cost for all share-based compensation programs was $6.4 million and $6.8 million for the three months ended September 30, 2017 and 2016, respectively, and $19.0 million and $19.3 million for the nine months ended September

19

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

30, 2017 and 2016, respectively. Of the total share-based compensation costs, $1.7 million and $1.5 million was capitalized as part of real estate assets and deferred leasing costs for the three months ended September 30, 2017 and 2016, respectively, and $5.4 million and $4.0 million for the nine months ended September 30, 2017 and 2016, respectively. As of September 30, 2017, there was approximately $30.9 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 1.9 years. The remaining compensation cost related to these nonvested incentive awards had been recognized in periods prior to September 30, 2017.

10.    Commitments and Contingencies

General

As of September 30, 2017, we had commitments of approximately $755.0 million, excluding our ground lease commitments, for contracts and executed leases directly related to our operating properties and development projects.

Environmental Matters

We follow the policy of monitoring all of our properties, both acquisition 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, 2017, we had accrued environmental remediation liabilities of approximately $27.1 millionrecorded on our consolidated balance sheets in connection with certain of our future development projects. It is possible that we could incur additional environmental remediation costs in connection with these future development projects.  However, given we are in the pre-development phase on these future development projects, potential additional environmental costs are not reasonably estimable 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.

11.    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, 2017 and December 31, 2016:

	Fair Value (Level 1) (1)
	September 30, 2017		December 31, 2016
Description	(in thousands)
Marketable securities (2)	$	18,851	$	14,773

________________________

(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 gains 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 for the period.

20

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The following table sets forth the net gain on marketable securities recorded during the three and nine months ended September 30, 2017 and 2016:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Description	(in thousands)				(in thousands)
Net gain on marketable securities	$	536	$	481	$	1,719	$	867

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, 2017 and December 31, 2016:

	September 30, 2017				December 31, 2016
	Carrying Value		Fair Value (1)		Carrying Value		Fair Value (1)
	(in thousands)
Liabilities
Secured debt, net	$	465,828	$	467,968	$	472,772	$	469,234
Unsecured debt, net	1,909,381		1,983,737		1,847,351		1,900,487
Unsecured line of credit	60,000		60,087		—		—

________________________

(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.

21

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

12.    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, 2017 and 2016:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
	(in thousands, except share and per share amounts)
Numerator:
Net income attributable to Kilroy Realty Corporation	$	71,110		$	53,895		$	136,083		$	261,050
Total preferred dividends	(4,552		)	(3,313		)	(13,363		)	(9,938		)
Allocation to participating securities (1)	(501		)	(426		)	(1,460		)	(1,244		)
Numerator for basic and diluted net income available to common stockholders	$	66,057		$	50,156		$	121,260		$	249,868
Denominator:
Basic weighted average vested shares outstanding	98,352,139			92,227,016			98,008,780			92,220,522
Effect of dilutive securities	559,473			693,390			582,268			611,016
Diluted weighted average vested shares and common share equivalents outstanding	98,911,612			92,920,406			98,591,048			92,831,538
Basic earnings per share:
Net income available to common stockholders per share	$	0.67		$	0.54		$	1.24		$	2.71
Diluted earnings per share:
Net income available to common stockholders per share	$	0.67		$	0.54		$	1.23		$	2.69

________________________

(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, 2017 and 2016. Certain market measure-based RSUs are not included in dilutive securities for the three and nine months ended September 30, 2017 and 2016, as not all performance metrics had been met by the end of the applicable reporting periods.

See Note 9 “Share-Based Compensation” for additional information regarding share-based compensation.

22

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

13.    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, 2017 and 2016:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
	(in thousands, except unit and per unit amounts)
Numerator:
Net income attributable to Kilroy Realty, L.P.	$	72,402		$	55,254		$	138,427		$	266,677
Total preferred distributions	(4,552		)	(3,313		)	(13,363		)	(9,938		)
Allocation to participating securities (1)	(501		)	(426		)	(1,460		)	(1,244		)
Numerator for basic and diluted net income available to common unitholders	$	67,349		$	51,515		$	123,604		$	255,495
Denominator:
Basic weighted average vested units outstanding	100,429,332			94,858,292			100,160,595			94,630,183
Effect of dilutive securities	559,473			693,390			582,268			611,016
Diluted weighted average vested units and common unit equivalents outstanding	100,988,805			95,551,682			100,742,863			95,241,199
Basic earnings per unit:
Net income available to common unitholders per unit	$	0.67		$	0.54		$	1.23		$	2.70
Diluted earnings per unit:
Net income available to common unitholders per unit	$	0.67		$	0.54		$	1.23		$	2.68

________________________

(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, 2017 and 2016. Certain market measure-based RSUs are not included in dilutive securities for the three and nine months ended September 30, 2017 and 2016, as not all performance metrics had been met by the end of the applicable reporting periods.

See Note 9 “Share-Based Compensation” for additional information regarding share-based compensation.

23

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

14.    Supplemental Cash Flow Information of the Company

Supplemental cash flow information is included as follows (in thousands):

	Nine Months Ended September 30,
	2017		2016
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $31,880 and $36,468 as of September 30, 2017 and 2016, respectively	$	46,878	$	42,858
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	104,409	$	77,161
Tenant improvements funded directly by tenants	$	10,361	$	16,803
Assumption of accrued liabilities in connection with acquisitions	$	—	$	4,911
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	43,324	$	36,109
Accrual of dividends and distributions payable to preferred stockholders and preferred unitholders	$	—	$	1,656
Exchange of common units of the Operating Partnership into shares of the Company’s common stock	$	10,939	$	39
Issuance of common units of the Operating Partnership in connection with an acquisition	$	—	$	48,033
Secured debt assumed by buyers in connection with land dispositions	$	—	$	2,322

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, 2017 and 2016.

	Nine Months Ended September 30,
	2017		2016
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	193,418	$	56,508
Restricted cash at beginning of period	56,711		696
Cash and cash equivalents and restricted cash at beginning of period	$	250,129	$	57,204
Cash and cash equivalents at end of period	$	64,954	$	250,523
Restricted cash at end of period	179,276		57,501
Cash and cash equivalents and restricted cash at end of period	$	244,230	$	308,024

15.    Supplemental Cash Flow Information of the Operating Partnership:

Supplemental cash flow information is included as follows (in thousands):

	Nine Months Ended September 30,
	2017		2016
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $31,880 and $36,468 as of September 30, 2017 and 2016, respectively	$	46,878	$	42,858
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	104,409	$	77,161
Tenant improvements funded directly by tenants	$	10,361	$	16,803
Assumption of accrued liabilities in connection with acquisitions	$	—	$	4,911
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	$	43,324	$	36,109
Accrual of distributions payable to preferred unitholders	$	—	$	1,656
Issuance of common units of the Operating Partnership in connection with an acquisition	$	—	$	48,033
Secured debt assumed by buyers in connection with land dispositions	$	—	$	2,322

24

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, 2017 and 2016.

	Nine Months Ended September 30,
	2017		2016
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	193,418	$	56,508
Restricted cash at beginning of period	56,711		696
Cash and cash equivalents and restricted cash at beginning of period	$	250,129	$	57,204
Cash and cash equivalents at end of period	$	64,954	$	250,523
Restricted cash at end of period	179,276		57,501
Cash and cash equivalents and restricted cash at end of period	$	244,230	$	308,024

16.    Subsequent Events

On October 10, 2017, the Company completed the acquisition of a 1.2 acre development site located in the Little Italy neighborhood of downtown San Diego, California for $19.4 million in cash.

OnOctober 18, 2017, aggregate dividends, distributions and dividend equivalents of $43.3 millionwere paid to common stockholders, common unitholders and RSU holders of record on September 30, 2017.

25

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 office 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, 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 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 remediations; 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 implementations of, applicable laws, regulations or legislation; 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; and our ability to maintain our status as a REIT. 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 as well as “Item 1A. Risk Factors” and in our “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, 2016 and their respective other filings with the SEC. All forward-looking statements are based on currently available information and speak only as of the date on which they are made. We assume no obligation 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.

26

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 Los Angeles, Orange County, 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 properties through the Operating Partnership and the Finance Partnership and generally conduct substantially all of our operations through the Operating Partnership. We owned an approximate 97.9%, 97.5%and 97.2% general partnership interest in the Operating Partnership as of September 30, 2017, December 31, 2016 and September 30, 2016, respectively. All of our properties are held in fee except for the thirteen office buildings that are held subject to long-term ground leases for the land.

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, stabilization of recently completed development projects and, subject to market conditions, executing on our near-term and future development pipeline, including expanding entitlements. Over the past several years, we increased our focus on development opportunities and expanded our near-term and 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 that are pre-leased.

Stabilized Development Projects

During the nine months ended September 30, 2017, we added the following project to our stabilized portfolio since the project had reached one year from building shell substantial completion:

• Columbia Square Phase 2 - Office, located in the heart of Hollywood, California, two blocks from the corner of Sunset Boulevard and Vine Street. This project is comprised of three buildings totaling approximately 365,359 rentable square feet with a total estimated investment of approximately $230.0 million. The project was added to the stabilized portfolio during the first quarter of 2017 and was 88% occupied as of September 30, 2017. The project is currently 100% leased.

Projects Under Construction

As of September 30, 2017, we had four projects in our in-process development pipeline that were under construction.

• The Exchange on 16th, Mission Bay, San Francisco, California, which we acquired in May 2014 and commenced construction on in June 2015. This project is currently anticipated to encompass approximately 750,000 gross rentable square feet consisting of 736,000 square feet of office space and 14,000 square feet of retail space at a total estimated investment of $570.0 million. Construction is currently in progress and the building and core shell are currently estimated to be completed in the first half of 2018. The office space in the project is 100% leased to Dropbox, Inc. The lease with Dropbox, Inc. will commence in phases beginning in the fourth quarter of 2018 through the fourth quarter of 2019.

• 333 Dexter, South Lake Union, Washington, which we acquired in February 2015 and commenced construction on in June 2017. This project encompasses approximately 650,000 gross rentable square feet of office space at a total estimated investment of $380.0 million. Construction is currently in progress and the building core and shell are currently estimated to be completed in the second half of 2019.

• 100 Hooper, San Francisco, California, which we acquired in July 2015 and commenced construction on in November 2016. This project will encompass approximately 314,000 square feet of office and approximately 86,000 square feet of production, distribution and repair (“PDR”) space configured in two, four-story buildings. The total estimated cost for this project is approximately $270.0 million. Construction is currently in process and the core and shell of the project

27

are currently expected to be completed in the first half of 2018. The office portion of the project is 100% pre-leased to Adobe Systems Inc. In connection with 100 Hooper, the Company is also developing an adjacent 59,000 square foot PDR building located at 150 Hooper with a total estimated investment of approximately $22.0 million.

• One Paseo - Phase I (Retail and Residential), San Diego, California, which we acquired in November 2007 and commenced construction on in December 2016. Phase I of this mixed-use project includes site work and related infrastructure for the entire project, as well as 237 residential units and approximately 96,000 square feet of retail space. The total estimated investment for this project is approximately $225.0 million. Construction is currently in process and is currently expected to be completed in phases beginning in the third quarter of 2018.

Near-Term and Future Development Pipeline

As of September 30, 2017, our near-term development pipeline included two additional future projects located in San Diego County and Los Angeles with an aggregate cost basis of approximately $245.4 million at which we believe we could develop approximately 1.2 million rentable square feet at a total estimated investment of approximately $865.0 million, depending on market conditions.

The following table sets forth information about our near-term development pipeline.

Near-Term Development Pipeline (1)	Location	Potential Start Date (2)	Approx. Developable Square Feet	Total Estimated Investment ($ in millions)		Total Costs as of 9/30/2017 (3) ($ in millions)
Academy Project	Hollywood	2018	545,000	$	425	$	83.8
One Paseo - Phases II and III	Del Mar	TBD	640,000	440		161.6
Total Near-Term Development Pipeline			1,185,000	$	865	$	245.4

________________________

(1) Project timing, costs, developable square feet and scope 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 office supply, regulatory and entitlement processes, and project design.

(2) Actual commencement is subject to extensive consideration of market conditions and economic factors.

(3) Represents cash paid and costs incurred as of September 30, 2017.

As of September 30, 2017, our longer term future development pipeline included additional undeveloped land holdings located in various submarkets in San Diego County and the San Francisco Bay Area with an aggregate cost basis of approximately $311.1 million, at which we believe we could develop more than 2.5 million developable square feet, depending on successfully obtaining entitlements and market conditions.

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 ninemonths ended September 30, 2017, we capitalized interest on in-process development projects and development pipeline projects with an average aggregate cost basis of approximately $1.0 billion, asit was determined these projects qualified for interest and other carrying cost capitalization under GAAP. During the three and ninemonths ended September 30, 2016, we capitalized interest on in-process development projects and development pipeline projects with an average aggregate cost basis of approximately $1.0 billion and $1.1 billion, respectively, asit was determined these projects qualified for interest and other carrying cost capitalization under GAAP. For the three and nine months ended September 30, 2017, we capitalized $12.2 million and $33.1 million, respectively, of interest to our qualifying development projects. For the three and nine months ended September 30, 2016, we capitalized $11.2 million and $37.8 million, respectively, of interest to our qualifying development projects. For the three and nine months ended September 30, 2017, we capitalized $4.9 million and $15.7 million, respectively, of internal costs to our qualifying development projects. For the three and nine months ended September 30, 2016, we capitalized $5.1 million and $13.8 million, respectively, of internal costs to our qualifying development projects.

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 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.

28

In connection with our capital recycling strategy, during the nine months ended September 30, 2017, we completed the sale of eleven operating properties and one undeveloped land parcel in two transactions to unaffiliated third parties for gross proceeds of $186.6 million.

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 continue to 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.

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. 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. As of September 30, 2017, we had $30.6 million of refundable acquisition deposits, subject to closing conditions required to be met by the seller, for potential future acquisitions.

Incentive Compensation. Our Executive Compensation Committee determines compensation, including cash bonuses and equity incentives, for our executive officers. For 2017, 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/or 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, 2017, there was approximately$30.9 millionof 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 of1.9years. The $30.9 millionof unrecognized compensation cost does not reflect the future compensation cost for any potential share-based awards that may be issued. 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.

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, 2017.

For Leases Commenced ⁽¹⁾ 

	1st & 2nd Generation (2)				2nd Generation (2)
	Number of Leases (3)		Rentable Square Feet (3)		TI/LC per Sq. Ft. (4)		Changes in Rents (5)(6)		Changes in Cash Rents (7)		Retention Rates (8)		Weighted Average Lease Term (in months)
	New	Renewal	New	Renewal
Three Months Ended September 30, 2017	20	11	221,614	56,566	$	58.76	51.5	%	31.5	%	19.7	%	80
Nine Months Ended September 30, 2017	57	47	521,079	685,522	$	47.08	33.0	%	17.7	%	48.2	%	73

29

For Leases Executed ⁽¹⁾⁽⁹⁾  

	1st & 2nd Generation (2)				2nd Generation (2)
	Number of Leases (3)		Rentable Square Feet (3)		TI/LC per Sq. Ft. (4)		Changes in Rents (5)(6)		Changes in Cash Rents (7)		Weighted Average Lease Term (in months)
	New	Renewal	New	Renewal
Three Months Ended September 30, 2017 (9)(10)	22	11	152,547	56,566	$	44.66	9.5	%	0.8	%	65
Nine Months Ended September 30, 2017 (10)	70	47	656,590	685,522	$	48.89	27.9	%	12.8	%	70

________________________

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

(5) 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.

(6) Excludes commenced and executed leases of approximately 38,652 and 88,403 square feet, respectively, for the three months ended September 30, 2017, and162,357 and 173,270 rentable square feet, respectively, for the nine months ended September 30, 2017, 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 meaningful market comparison.

(7) 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.

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

(9) Excluding two leases executed in our Orange County region for 32,097 rentable square feet, cash rents increased 9.7%.

(10) For the three months ended September 30, 2017, 18 leases totaling 133,789 rentable square feet were signed but not commenced as of September 30, 2017. For the nine months ended September 30, 2017, 35 leases totaling 448,854 rentable square feet were signed but not commenced as of September 30, 2017.

As of September 30, 2017, we believe that the weighted average cash rental rates for our total stabilized portfolio are approximately 15% below the current average market rental rates, which includes a projection that the weighted average cash rental rates for our San Diego stabilized portfolio are approximately 7% abovecurrent market rental rates. Individual properties within any particular submarket presently may be leased either above, below, or at the current market rates within that submarket, and the average rental rates for individual submarkets may be above, below, or at the average cash rental rate of our portfolio.

Our rental rates and occupancy are impacted by general economic conditions, including the pace of regional economic growth and access to capital. 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. Additionally, decreased demand 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.

Scheduled Lease Expirations. The following table sets forth certain information regarding our lease expirations for our stabilized portfolio for the remainder of 2017 and the next five years.

Lease Expirations ⁽¹⁾ 

Year of Lease Expiration	Number of Expiring Leases	Total Square Feet	% of Total Leased Sq. Ft.		Annualized Base Rent (2)		% of Total Annualized Base Rent (2)		Annualized Base Rent per Sq. Ft. (2)
					(in thousands)
Remainder of 2017	30	360,619	2.8	%	$	12,956	2.3	%	$	35.93
2018	80	1,235,826	9.7	%	51,982		9.3	%	42.06
2019	99	1,547,021	12.2	%	56,605		10.1	%	36.59
2020	107	1,739,675	13.7	%	68,376		12.3	%	39.30
2021	86	994,240	7.8	%	44,151		7.9	%	44.41
2022	56	572,999	4.5	%	23,523		4.2	%	41.05
Total	458	6,450,380	50.7	%	$	257,593	46.1	%	$	39.93

________________________ 

(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, 2017, space leased under month-to-month leases, storage leases, vacant space and future lease renewal options not executed as of September 30, 2017.

(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.”

30

In addition to the 0.8 millionrentable square feet, or 6.0%, of currently available space in our stabilized portfolio, leases representing approximately 2.8% and 9.7% of the occupied square footage of our stabilized portfolio are scheduled to expire during 2017 and 2018, respectively. The leases scheduled to expire during the remainder of 2017 and in 2018 represent approximately 1.6 million rentable square feet or 11.6% of our total annualized base rental revenue. Individual properties within any particular submarket presently may be leased either above, below, or at the current quoted market rates within that submarket, and the average rental rates for individual submarkets may be above, below, or at the average cash rental rate of our overall portfolio. Our ability to re-lease available space depends upon both general market conditions and the market conditions in the specific regions in which individual properties are located.

For the 360,619 rentable square feet or 2.3% of our total annualized base rental revenue scheduled to expire during the remainder of 2017, we believe that the weighted average cash rental rates in the aggregate are approximately at the current average market rental rates. For the approximately 1.2 million rentable square feet or 9.3% of our total annualized base rental revenue scheduled to expire in 2018 we believe that the weighted average cash rental rates in the aggregate, are approximatelyat current average market rental rates. Of the 1.2 million rentable square feet scheduled to expire in 2018, 307,415 rentable square feet or 2.8% of our total annualized base rental revenue is located in San Francisco submarkets and we currently believe these expiring leases are approximately 30% below market, and 444,949 rentable square feet or 3.7% of our total annualized base rental revenue is located in San Diego submarkets and we currently believe these expiring leases are approximately 30% above market.

31

Stabilized Portfolio Information

As of September 30, 2017, our stabilized portfolio was comprised of 101 office properties encompassing an aggregate of approximately 13.7 million rentable square feet and 200 residential units. Our stabilized portfolio includes all of our properties with the exception of development and redevelopment properties currently under construction or committed for construction, “lease-up” properties, real estate assets held for sale and undeveloped land. 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 “lease-up” properties as office properties we recently developed or redeveloped that have not yet reached 95% occupancy and are within one year following cessation of major construction activities. We did not have any “lease-up”, redevelopment or held for sale properties at September 30, 2017.

As of September 30, 2017, the following properties were excluded from our stabilized portfolio:

	Number of Properties/Projects	Estimated Rentable Square Feet (1)
Development projects under construction (2)	4	1,800,000

________________________

(1) Estimated rentable square feet upon completion.

(2) Development projects under construction also include 96,000 square feet of retail space and 237 residential units in addition to the estimated office rentable square feet noted above.

Our stabilized portfolio also excludes our near-term and future development pipeline, which as of September 30, 2017 was comprised of five potential development sites, representing approximately 47 gross acres of undeveloped land on which we believe we have the potential to develop over 4.3 millionsquare feet of office space, depending upon economic conditions.

The following table reconciles the changes in the rentable square feet in our stabilized office portfolio of operating properties from September 30, 2016 to September 30, 2017:

	Number of Buildings		Rentable Square Feet
Total as of September 30, 2016	101		13,605,597
Acquisitions	6		344,284
Completed development properties placed in-service	4		438,391
Dispositions	(10	)	(675,143	)
Remeasurement	—		7,469
Total as of September 30, 2017 (1)	101		13,720,598

________________________

(1) Includes four properties owned by consolidated property partnerships.

Occupancy Information

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

Stabilized Portfolio Occupancy

Region	Number of Buildings	Rentable Square Feet	Occupancy at (1)
			9/30/2017		6/30/2017		12/31/2016
Los Angeles and Ventura Counties	36	4,181,735	91.0	%	91.2	%	95.0	%
Orange County	1	271,556	94.4	%	94.7	%	97.8	%
San Diego	21	2,043,645	93.9	%	93.5	%	93.2	%
San Francisco Bay Area	31	5,157,524	95.9	%	95.1	%	97.6	%
Greater Seattle	12	2,066,138	95.2	%	97.0	%	97.2	%
Total Stabilized Portfolio	101	13,720,598	94.0	%	93.9	%	96.0	%

32

-	Average Occupancy
	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Stabilized Portfolio(1)	93.9	%	96.1	%	94.1	%	95.3	%
Same Store Portfolio(2)	94.3	%	96.7	%	94.9	%	96.4	%

________________________

(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, 2016 and still owned and stabilized as of September 30, 2017. See discussion under “Results of Operations” for additional information.

Our stabilized office portfolio was 94.0% occupied as of September 30, 2017 with 360,619 square feet scheduled to expire during the remainder of 2017. Our stabilized residential property was 72.0% occupied as of September 30, 2017.

Significant Tenants

The following table sets forth information about our fifteen largest tenants based upon annualized rental revenues as of September 30, 2017.

Tenant Name	Annualized Base Rental Revenue (1) ($ in thousands)		Rentable Square Feet	Percentage of Total Annualized Base Rental Revenue		Percentage of Total Rentable Square Feet
LinkedIn Corporation	$	28,344	663,239	5.1	%	4.8	%
salesforce.com, inc.	23,836		456,867	4.3	%	3.3	%
DIRECTV, LLC	23,152		684,411	4.2	%	5.0	%
Box, Inc.	22,441		371,792	4.0	%	2.7	%
Dropbox, Inc.	21,572		256,484	3.9	%	1.9	%
Synopsys, Inc.	15,492		340,913	2.8	%	2.5	%
Bridgepoint Education, Inc.	14,064		296,708	2.5	%	2.2	%
Viacom International, Inc.	13,718		211,343	2.5	%	1.5	%
Delta Dental of California	10,313		188,143	1.9	%	1.4	%
Capital One, N.A.	9,170		117,993	1.6	%	0.9	%
AMN Healthcare, Inc.	9,001		176,075	1.6	%	1.3	%
Concur Technologies	8,852		243,429	1.6	%	1.8	%
Biotech/Healthcare Industry Tenant	8,461		128,688	1.5	%	0.9	%
Riot Games, Inc.	7,355		131,537	1.3	%	1.0	%
Neurocrine Biosciences, Inc.	6,883		140,591	1.2	%	1.0	%
Total Top Fifteen Tenants	$	222,654	4,408,213	40.0	%	32.2	%

________________________

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

33

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, tenant reimbursements and other property income) less consolidated operating expenses (property expenses, real estate taxes, provision for bad debts 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, 2016 and still owned and included in the stabilized portfolio as of September 30, 2017;

• Stabilized Development Properties – includes the results generated by the following:

◦ One office development project that was added to the stabilized portfolio in the first quarter of 2017;

◦ Two office development projects that were completed and stabilized in March 2016;

◦ Our residential project that was completed in June 2016; and

◦ One office development project that was added to the stabilized portfolio in the fourth quarter of 2016;

• Acquisition Properties – includes the results, from the dates of acquisition through the periods presented, for the four office and three retail buildings we acquired in three transactions during 2016; and

• Dispositions and Other – includes the results of the ten properties disposed of in the third quarter of 2017, the one property disposed of during the first quarter of 2017, the six properties disposed of in 2016 and expenses for certain of our in-process, near-term and future development projects.

The following table sets forth certain information regarding the property groups within our stabilized office portfolio as of September 30, 2017:

Group	# of Buildings	Rentable Square Feet
Same Store Properties	88	12,182,806
Stabilized Development Properties	6	1,079,333
Acquisition Properties	7	458,459
Total Stabilized Office Portfolio	101	13,720,598

34

Comparison of the Three Months Ended September 30, 2017 to the Three Months Ended September 30, 2016

The following table summarizes our Net Operating Income, as defined, for our total portfolio for the three months ended September 30, 2017 and 2016.

	Three Months Ended September 30,						Dollar Change			Percentage Change
	2017			2016
	($ in thousands)
Reconciliation of Net Income Available to Common Stockholders to Net Operating Income, as defined:
Net Income Available to Common Stockholders	$	66,558		$	50,582		$	15,976		31.6	%
Preferred dividends	808			3,313			(2,505		)	(75.6	)%
Original issuance costs of redeemed preferred stock and preferred units	3,744			—			3,744			100.0	%
Net income attributable to Kilroy Realty Corporation	$	71,110		$	53,895		$	17,215		31.9	%
Net income attributable to noncontrolling common units of the Operating Partnership	1,394			1,453			(59		)	(4.1	)%
Net income attributable to noncontrolling interests in consolidated property partnerships	2,984			1,027			1,957			190.6	%
Net income	$	75,488		$	56,375		$	19,113		33.9	%
Unallocated expense (income):
General and administrative expenses	14,514			13,533			981			7.2	%
Acquisition-related expenses	—			188			(188		)	(100.0	)%
Depreciation and amortization	62,567			56,666			5,901			10.4	%
Interest income and other net investment gains	(1,526		)	(538		)	(988		)	183.6	%
Interest expense	16,151			14,976			1,175			7.8	%
Net gain on sale of land	(449		)	—			(449		)	100.0	%
Gains on sales of depreciable operating properties	(37,250		)	(18,312		)	(18,938		)	103.4	%
Net Operating Income, as defined	$	129,495		$	122,888		$	6,607		5.4	%

35

The following tables summarize our Net Operating Income, as defined, for our total portfolio for the three months ended September 30, 2017 and 2016.

	Three Months Ended September 30,
	2017										2016
	Same Store		Stabilized Develop-ment		Acquisi-tion Properties		Disposi-tions & Other		Total		Same Store		Stabilized Develop-ment		Acquisi-tion Properties		Disposi-tions & Other			Total
	(in thousands)
Operating revenues:
Rental income	$	130,147	$	18,550	$	7,317	$	3,940	$	159,954	$	129,684	$	11,347	$	1,339	$	4,169		$	146,539
Tenant reimbursements	14,550		2,841		1,821		453		19,665		13,670		1,999		263		474			16,406
Other property income	1,396		91		206		222		1,915		287		19		—		5,097			5,403
Total	146,093		21,482		9,344		4,615		181,534		143,641		13,365		1,602		9,740			168,348
Property and related expenses:
Property expenses	26,554		4,468		1,232		816		33,070		25,165		3,885		106		894			30,050
Real estate taxes	9,949		4,337		1,429		656		16,371		12,091		1,534		163		713			14,501
Provision for bad debts	643		15		362		16		1,036		23		—		—		(23		)	—
Ground leases	964		—		598		—		1,562		909		—		—		—			909
Total	38,110		8,820		3,621		1,488		52,039		38,188		5,419		269		1,584			45,460
Net Operating Income, as defined	$	107,983	$	12,662	$	5,723	$	3,127	$	129,495	$	105,453	$	7,946	$	1,333	$	8,156		$	122,888

	Three Months Ended September 30, 2017 as compared to the Three Months Ended September 30, 2016
	Same Store					Stabilized Development				Acquisition Properties				Dispositions & Other					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	$	463		0.4	%	$	7,203	63.5	%	$	5,978	446.5	%	$	(229	)	(5.5	)%	$	13,415		9.2	%
Tenant reimbursements	880			6.4	%	842		42.1	%	1,558		592.4	%	(21		)	(4.4	)%	3,259			19.9	%
Other property income	1,109			386.4	%	72		378.9	%	206		100.0	%	(4,875		)	(95.6	)%	(3,488		)	(64.6	)%
Total	2,452			1.7	%	8,117		60.7	%	7,742		483.3	%	(5,125		)	(52.6	)%	13,186			7.8	%
Property and related expenses:
Property expenses	1,389			5.5	%	583		15.0	%	1,126		NM*		(78		)	(8.7	)%	3,020			10.0	%
Real estate taxes	(2,142		)	(17.7	)%	2,803		182.7	%	1,266		776.7	%	(57		)	(8.0	)%	1,870			12.9	%
Provision for bad debts	620			NM*		15		100.0	%	362		100.0	%	39			169.6	%	1,036			100.0	%
Ground leases	55			6.1	%	—		—	%	598		100.0	%	—			—	%	653			71.8	%
Total	(78		)	(0.2	)%	3,401		62.8	%	3,352		NM*		(96		)	(6.1	)%	6,579			14.5	%
Net Operating Income, as defined	$	2,530		2.4	%	$	4,716	59.4	%	$	4,390	329.3	%	$	(5,029	)	(61.7	)%	$	6,607		5.4	%

________________________

* Percentage not meaningful.

Net Operating Income increased $6.6 million, or 5.4%, for the three months ended September 30, 2017 as compared to the three months ended September 30, 2016 resulting from:

• An increase of $2.5 million attributable to the Same Store Properties driven by the following activity:

• An increasein rental income of $0.5 million primarily due to:

• $3.4 million increase from new leases and renewals at higher rates across all regions;

• $0.3 million increase in parking income due to increased parking demand and rates at certain properties as well as increased transient parking; partially offset by

36

• $3.2 million decrease due to lease expirations and early terminations in the San Francisco Bay Area, Los Angeles and Greater Seattle regions;

• An increase in tenant reimbursements of $0.9 million primarily due to higher reimbursable expenses at several properties across the portfolio;

• An increase in other property income of $1.1 million primarily due to early lease termination fees in the San Diego region and San Francisco Bay Area;

• An offsetting decrease in property and related expenses of $0.1 million primarily due to the following:

• $1.4 million increase in property expenses due to an increase in contract services, electricity, security, parking, repairs and maintenance, and various other reimbursable expenses, including a $0.3 million increase in non-recurring non-reimbursable expenses;

• $0.6 million increase in the bad debt provision primarily related to four tenants; offset by

• $2.1 million decrease in real estate taxes primarily due to lower supplemental taxes at one property that was previously redeveloped;

• An increase in Net Operating Income of $4.7 million attributable to the Stabilized Development Properties;

• An increase in Net Operating Income of $4.4 million attributable to the Acquisition Properties; and

• A decrease in Net Operating Income of $5.0 million attributable to the Dispositions and Other Properties due to $5.0 million of other property income received in 2016 relating to a property damage settlement.

Other Expenses and Income

General and Administrative Expenses

General and administrative expenses increased by approximately $1.0 million, or 7.2%, for the three months ended September 30, 2017 compared to the three months ended September 30, 2016 mainly due to an increase in compensation related expenses primarily related to the growth of the Company.

Depreciation and Amortization

Depreciation and amortization increased by approximately $5.9 million, or 10.4%, for the three months ended September 30, 2017 compared to the three months ended September 30, 2016 primarily due to the following:

• An increase of $4.3 million attributable to the Acquisition Properties;

• An increase of $1.5 million attributable to the Stabilized Development Properties;

• An increase of $0.2 million attributable to the Same Store Properties; and

• A decrease of $0.1 million attributable to Dispositions & Other Properties.

37

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 three months ended September 30, 2017 and 2016:

	Three Months Ended September 30,
	2017			2016			Dollar Change			Percentage Change
	(in thousands)
Gross interest expense	$	28,331		$	26,184		$	2,147		8.2	%
Capitalized interest and deferred financing costs	(12,180		)	(11,208		)	(972		)	8.7	%
Interest expense	$	16,151		$	14,976		$	1,175		7.8	%

Gross interest expense, before the effect of capitalized interest and deferred financing costs, increased $2.1 million, or 8.2%, for the three months ended September 30, 2017 as compared to the three months ended September 30, 2016 primarily due to an increase in the average outstanding debt balance for the three months ended September 30, 2017. Capitalized interest and deferred financing costs increased $1.0 million, or 8.7%, for the three months ended September 30, 2017 as compared to the three months ended September 30, 2016 primarily due to an increase in the average development asset balances qualifying for interest capitalizationduring the three months ended September 30, 2017.

Net Income Attributable to Noncontrolling Interests in Consolidated Property Partnerships

Net income attributable to noncontrolling interests in consolidated property partnerships increased $2.0 million for the three months ended September 30, 2017 compared to the three months ended September 30, 2016. The amount reported for the three months ended September 30, 2017 is comprised of the noncontrolling interest’s share of net income for 100 First Street Member, LLC (“100 First LLC”) and 303 Second Street Member (“303 Second LLC”) which closed on August 30, 2016 and November 30, 2016, respectively, in addition to the noncontrolling interest’s share of net income for Redwood City Partners, LLC (“Redwood LLC”). The amount reported for the three months ended September 30, 2016 is comprised of the noncontrolling interests’ share of net income for 100 First LLC and Redwood LLC.

38

Comparison of the Nine Months Ended September 30, 2017 to the Nine Months Ended September 30, 2016

The following table summarizes our Net Operating Income, as defined, for our total portfolio for the nine months ended September 30, 2017 and 2016.

	Nine Months Ended September 30,						Dollar Change			Percentage Change
	2017			2016
	($ in thousands)
Reconciliation of Net Income Available to Common Stockholders to Net Operating Income, as defined:
Net Income Available to Common Stockholders	$	122,720		$	251,112		$	(128,392	)	(51.1	)%
Preferred dividends	5,774			9,938			(4,164		)	(41.9	)%
Original issuance costs of redeemed preferred stock and preferred units	7,589			—			7,589			100.0	%
Net income attributable to Kilroy Realty Corporation	$	136,083		$	261,050		$	(124,967	)	(47.9	)%
Net income attributable to noncontrolling common units of the Operating Partnership	2,633			5,892			(3,259		)	(55.3	)%
Net income attributable to noncontrolling interests in consolidated property partnerships	9,359			1,438			7,921			550.8	%
Net income	$	148,075		$	268,380		$	(120,305	)	(44.8	)%
Unallocated expense (income):
General and administrative expenses	43,750			40,949			2,801			6.8	%
Acquisition-related expenses	—			964			(964		)	(100.0	)%
Depreciation and amortization	185,737			160,452			25,285			15.8	%
Interest income and other net investment gains	(3,629		)	(1,120		)	(2,509		)	224.0	%
Interest expense	51,476			41,189			10,287			25.0	%
Net (gain) loss on sale of land	(449		)	295			(744		)	(252.2	)%
Gains on sales of depreciable operating properties	(39,507		)	(164,302		)	124,795			(76.0	)%
Net Operating Income, as defined	$	385,453		$	346,807		$	38,646		11.1	%

The following tables summarize our Net Operating Income, as defined, for our total portfolio for the nine months ended September 30, 2017 and 2016.

	Nine Months Ended September 30,
	2017											2016
	Same Store		Stabilized Develop-ment			Acquisition Properties		Dispositi-ons & Other		Total		Same Store		Stabilized Develop-ment		Acquisition Properties		Dispositi-ons & Other			Total
	(in thousands)
Operating revenues:
Rental income	$	388,721	$	53,106		$	21,884	$	11,816	$	475,527	$	385,870	$	22,610	$	1,710	$	13,757		$	423,947
Tenant reimbursements	43,592		7,356			5,846		1,434		58,228		37,823		4,028		317		1,780			43,948
Other property income	5,546		241			612		1,286		7,685		850		26		—		5,156			6,032
Total	437,859		60,703			28,342		14,536		541,440		424,543		26,664		2,027		20,693			473,927
Property and related expenses:
Property expenses	78,649		12,659			3,666		2,641		97,615		74,193		7,094		116		3,833			85,236
Real estate taxes	34,946		9,198			4,901		1,833		50,878		33,624		3,282		181		2,291			39,378
Provision for bad debts	1,672		(101		)	1,080		92		2,743		39		—		—		(39		)	—
Ground leases	2,956		—			1,795		—		4,751		2,506		—		—		—			2,506
Total	118,223		21,756			11,442		4,566		155,987		110,362		10,376		297		6,085			127,120
Net Operating Income, as defined	$	319,636	$	38,947		$	16,900	$	9,970	$	385,453	$	314,181	$	16,288	$	1,730	$	14,608		$	346,807

39

	Nine Months Ended September 30, 2017 as compared to the Nine Months Ended September 30, 2016
	Same Store				Stabilized Development					Acquisition Properties				Dispositions & Other					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	$	2,851	0.7	%	$	30,496		134.9	%	$	20,174	NM*		$	(1,941	)	(14.1	)%	$	51,580	12.2	%
Tenant reimbursements	5,769		15.3	%	3,328			82.6	%	5,529		NM*		(346		)	(19.4	)%	14,280		32.5	%
Other property income	4,696		552.5	%	215			826.9	%	612		100.0	%	(3,870		)	(75.1	)%	1,653		27.4	%
Total	13,316		3.1	%	34,039			127.7	%	26,315		NM*		(6,157		)	(29.8	)%	67,513		14.2	%
Property and related expenses:
Property expenses	4,456		6.0	%	5,565			78.4	%	3,550		NM*		(1,192		)	(31.1	)%	12,379		14.5	%
Real estate taxes	1,322		3.9	%	5,916			180.3	%	4,720		NM*		(458		)	(20.0	)%	11,500		29.2	%
Provision for bad debts	1,633		NM*		(101		)	(100.0	)%	1,080		100.0	%	131			335.9	%	2,743		100.0	%
Ground leases	450		18.0	%	—			—	%	1,795		100.0	%	—			—	%	2,245		89.6	%
Total	7,861		7.1	%	11,380			109.7	%	11,145		NM*		(1,519		)	(25.0	)%	28,867		22.7	%
Net Operating Income, as defined	$	5,455	1.7	%	$	22,659		139.1	%	$	15,170	876.9	%	$	(4,638	)	(31.7	)%	$	38,646	11.1	%

________________________

* Percentage not meaningful.

Net Operating Income increased $38.6 million, or 11.1%, for the nine months ended September 30, 2017 as compared to the nine months ended September 30, 2016 primarily resulting from:

• An increase of $5.5 million attributable to the Same Store Properties primarily resulting from:

• An increase in rental income of $2.9 million primarily due to the following:

• $9.0 million increase due to new leases and renewals at higher rates primarily in the San Francisco Bay Area, Los Angeles and Greater Seattle regions;

• $0.5 million increase in parking income due to increased tenant parking demand at certain properties; partially offset by

• $6.6 million decrease due to lease expirations and early terminations primarily in the San Francisco Bay Area, Los Angeles and Greater Seattle regions;

• An increase in tenant reimbursements of $5.8 million primarily due to:

• $3.3 million increase due to higher recurring expenses and increased occupancy at various properties across multiple regions;

• $1.6 million increase due to lower reimbursable supplemental taxes in 2016 as a result of a change in estimate at one property;

• $0.9 million increase primarily due to lower abated tenant reimbursements as compared to the prior year in addition to increased tenant reimbursements from tenants with 2016 base years;

• An increase in other property income of $4.7 million primarily due to early termination fees in the San Francisco Bay Area and San Diego region;

• An increase in property and related expenses of $7.9 million primarily due to the following:

• $4.5 million increase in property expenses primarily resulting from a $3.5 million increase in certain recurring operating costs related to security, parking, janitorial, engineers, repairs and maintenance, contract services, and various other reimbursable expenses and a $1.0 million increase in non-reimbursable expenses of which $0.5 million is non-recurring;

40

• $1.3 million increase in real estate taxes primarily due to regular annual property tax increases in 2017;

• $1.6 million increase in the provision for bad debt expense primarily related to four tenants; and

• $0.5 million increase in ground rent primarily due to higher percentage ground rent for one of our ground leases;

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

• An increase of $15.2 million attributable to the Acquisition Properties; and

• A decrease of $4.6 million attributable to the Dispositions & Other Properties primarily due to $5.0 million of other property income received in 2016 relating to a property damage settlement.

Other Expenses and Income

General and Administrative Expenses

General and administrative expenses increased $2.8 million, or 6.8%, for the nine months ended September 30, 2017 compared to the nine months ended September 30, 2016 primarily due to the following:

• An increase of approximately $2.1 million due to higher compensation and office expenses related to the growth of the Company; and

• An increase of $0.7 million attributable to compensation expense related to the mark-to-market adjustment for the Company’s deferred compensation plan. The compensation expense was offset by gains on the underlying marketable securities included in interest income and other net investment gains in the consolidated statements of operations.

Depreciation and Amortization

Depreciation and amortization increased by $25.3 million, or 15.8%, for the nine months ended September 30, 2017 compared to the nine months ended September 30, 2016, primarily due to the following:

• An increase of $14.5 million attributable to the Acquisition Properties;

• An increase of $8.0 million attributable to the Stabilized Development Properties;

• An increase of $3.7 million attributable to the Same Store Properties; offset by

• A decrease of $0.9 million attributable to the Dispositions and Other Properties.

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, 2017 and 2016:

	Nine Months Ended September 30,
	2017			2016			Dollar Change		Percentage Change
	(in thousands)
Gross interest expense	$	84,577		$	79,027		$	5,550	7.0	%
Capitalized interest and deferred financing costs	(33,101		)	(37,838		)	4,737		(12.5	)%
Interest expense	$	51,476		$	41,189		$	10,287	25.0	%

Gross interest expense, before the effect of capitalized interest and deferred financing costs, increased $5.6 million or 7.0% for the nine months ended September 30, 2017 as compared to the nine months ended September 30, 2016 primarily due to an

41

increase in the average outstanding debt balance for the nine months ended September 30, 2017. Capitalized interest and deferred financing costs decreased $4.7 million or 12.5% primarily due to a decrease in the average development asset balances qualifying for interest capitalization for the nine months ended September 30, 2017 as compared to the nine months ended September 30, 2016.

Net Income Attributable to Noncontrolling Interests in Consolidated Property Partnerships

Net income attributable to noncontrolling interests in consolidated property partnerships increased $7.9 million for the nine months ended September 30, 2017 compared to the nine months ended September 30, 2016. The amount reported for the nine months ended September 30, 2017 is comprised of the noncontrolling interest’s share of net income for 100 First LLC and 303 Second LLC, which closed on August 30, 2016 and November 30, 2016, respectively, in addition to the noncontrolling interest’s share of net income for Redwood LLC. The amount reported for the nine months ended September 30, 2016 is comprised of the noncontrolling interests’ share of net income for 100 First LLC and Redwood LLC.

42

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, 2017 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.

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 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, 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 sufficient to do so for 2017. 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, the Company may elect to distribute a special dividend to its common stockholders and common unitholders in order to minimize 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

43

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 September 13, 2017, the Board of Directors declared a regular quarterly cash dividend of $0.425 per share of common stock payable on October 18, 2017 to stockholders of record on September 30, 2017 and caused a $0.425 per Operating Partnership unit cash distribution to be paid in respect of the Operating Partnership’s common limited partnership interests, including those owned by the Company. The total cash quarterly dividends and distributions paid on October 18, 2017 were $42.7 million.

Debt Covenants

The covenants contained within the unsecured revolving credit facility, unsecured term loan facility, unsecured term loan and the Series A and B Notes generally prohibit the Company from paying dividends in excess of 95% of FFO.

Capitalization

As of September 30, 2017, our total debt as a percentage of total market capitalization was 25.5%, which was calculated based on the closing price per share of the Company’s common stock of $71.12 on September 30, 2017 as shown in the following table:

	Shares/Units at  September 30, 2017	Aggregate Principal Amount or $ Value Equivalent		% of Total Market Capitalization
	($ in thousands)
Debt: (1)(2)
Unsecured Line of Credit		$	60,000	0.6	%
Unsecured Senior Notes due 2018		325,000		3.4	%
Unsecured Senior Notes due 2020		250,000		2.6	%
Unsecured Senior Notes due 2023		300,000		3.1	%
Unsecured Senior Notes due 2025		400,000		4.2	%
Unsecured Senior Notes due 2029		400,000		4.2	%
Unsecured Senior Notes Series A & B due 2027 & 2029		250,000		2.6	%
Secured debt		464,025		4.8	%
Total debt		$	2,449,025	25.5	%
Equity and Noncontrolling Interest in the Operating Partnership: (3)
Common limited partnership units outstanding (4)(5)	2,077,193	$	147,730	1.6	%
Common shares outstanding (5)	98,382,256	6,996,946		72.9	%
Total equity and noncontrolling interest in the Operating Partnership		$	7,144,676	74.5	%
Total Market Capitalization		$	9,593,701	100.0	%

________________________ 

(1) Represents gross aggregate principal amount due at maturity before the effect of the following at September 30, 2017: $10.9 million of unamortized deferred financing costs, $6.0 million of unamortized discounts for the unsecured senior notes and $3.0 million of unamortized premiums for the secured debt.

(2) As of September 30, 2017, there was no outstanding balance on the unsecured term loan facility.

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

(4) Represents common units not owned by the Company.

(5) Value based on closing price per share of our common stock of $71.12as of September 30, 2017.

44

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, unsecured term loan facility, and unsecured senior notes;

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

• Proceeds from additional secured or unsecured debt financings; and

• Proceeds from public or private issuance of debt or 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 and preferred security holders;

• Repurchases and redemptions of outstanding common or preferred 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.

45

Liquidity Sources

Unsecured Revolving Credit Facility and Term Loan Facility

In July 2017, the Operating Partnership amended and restated the terms of its unsecured revolving credit facility and unsecured term loan facility (together, the “Facility”). The amendment and restatement increased the size of the unsecured revolving credit facility from $600.0 million to $750.0 million, maintained the size of the unsecured term loan facility of $150.0 million, reduced the borrowing costs and extended the maturity date of the Facility to July 2022. The unsecured term loan facility features two six-month delayed draw options and the Facility was undrawn at closing, including the $150.0 million term loan, which was paid down in full at closing with available cash. Concurrently with the closing of the Facility, the Operating Partnership also repaid its $39.0 million unsecured term loan with available cash.

The following table summarizes the balance and terms of our unsecured revolving credit facility as of September 30, 2017 and December 31, 2016:

	September 30, 2017			December 31, 2016
	(in thousands)
Outstanding borrowings	$	60,000		$	—
Remaining borrowing capacity	690,000			600,000
Total borrowing capacity (1)	$	750,000		$	600,000
Interest rate (2)	2.24		%	1.82		%
Facility fee-annual rate (3)	0.200%
Maturity date	July 2022			July 2019

________________________

(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 an annual rate of LIBOR plus 1.000% and LIBOR plus 1.050% as of September 30, 2017 and December 31, 2016, respectively.

(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, 2017 and December 31, 2016, $6.3 millionand $3.3 million of unamortized deferred financing costs, respectively, remained to be amortized through the maturity date of our unsecured revolving credit facility, which are included in prepaid expenses and other assets, net on our consolidated balance sheets.

We intend 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 and to potentially repay long-term debt.

The following table summarizes the balance and terms of our unsecured term loan facility as of September 30, 2017 and December 31, 2016:

	September 30, 2017			December 31, 2016
	(in thousands)
Outstanding borrowings (1)	$	—		$	150,000
Remaining borrowing capacity	150,000			—
Total borrowing capacity (2)	$	150,000		$	150,000
Interest rate (3)	2.33		%	1.85		%
Undrawn facility fee-annual rate (4)	0.200		%	—		%
Maturity date	July 2022			July 2019

________________________

(1) In July 2017, the unsecured term loan facility was paid down and the Facility was amended to include two, six-month delayed draw options on the unsecured term loan facility. The Company may draw on the unsecured term loan facility through July 2018, at which time the outstanding balance will become the balance of the unsecured term loan facility and no additional draws may be made. However, if the Company does not draw at least $75.0 million by the end of first option term in January 2018, the total borrowing capacity under the Facility will be reduced by 50% of the unutilized borrowing capacity at that time. The Company intends to draw $75.0 million prior to the end of the first option term in January 2018.

(2) As of September 30, 2017 and December 31, 2016, $1.2 million and $0.7 million of unamortized deferred financing costs, respectively, remained to be amortized through the maturity date of our unsecured term loan facility.

(3) Our unsecured term loan facility interest rate was calculated based on an annual rate of LIBOR plus 1.100% and LIBOR plus 1.150% as of September 30, 2017 and December 31, 2016, respectively.

(4) In July 2017, the Facility was amended to include a facility fee on the remaining borrowing capacity of the unsecured term loan facility, which is paid on a monthly basis.

46

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 lower return 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.

In connection with our capital recycling strategy, during the nine months ended September 30, 2017, we completed the sale of eleven operating properties and one undeveloped land parcel to unaffiliated third parties for gross proceeds of $186.6 million.

Any potential future capital recycling 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 and our ability to defer some or all of the taxable gains on the sales. We cannot assure you 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 deferred structures in connection with our capital recycling strategy.

At-The-Market Stock Offering Program and January 2017 Common Stock Offering

Since commencement of our at-the-market stock offering program in December 2014, through September 30, 2017, we have sold 2,459,165 shares of common stock having an aggregate gross sales price of $182.4 million, and approximately $117.6 million remained available to be sold under this program. No shares of common stock were sold under this program during the nine months ended September 30, 2017. 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.

In January 2017, the Company completed an underwritten public offering of 4,427,500 shares of its common stock. The net offering proceeds, after deducting underwriting discounts and offering expenses, were approximately $308.8 million. We used a portion of the proceeds to partially fund our 2016 special dividend and will use the remaining proceeds for general corporate uses, to fund development expenditures, for potential future acquisitions and to repay outstanding indebtedness.

Shelf Registration Statement

As discussed above under “—Liquidity and Capital Resources of the Company,” 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. 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 Senior Notes - Private Placement

On February 17, 2017, the Operating Partnership issued the $175.0 million principal amount of its 3.35% Senior Notes, Series A, due February 17, 2027 (the “Series A Notes”), and the $75.0 million principal amount of its 3.45% Senior Notes, Series B, due February 17, 2029 (the “Series B Notes” and, together with the Series A Notes, the “Series A and B Notes”). The Series A and B Notes were issued pursuant to a delayed draw option under a Note Purchase Agreement entered into in connection with a private placement in September 2016. As of September 30, 2017, there was $175.0 million and $75.0 million issued and outstanding aggregate principal amount of Series A and B Notes, respectively. The Series A Notes mature on February 17, 2027, and the Series B Notes mature on February 17, 2029, unless earlier redeemed or prepaid pursuant to the terms of the Note Purchase Agreement. Interest on the Series A and B Notes is payable semi-annually in arrears on February 17 and August 17 of each year.

47

Unsecured and Secured Debt

The aggregate principal amount of the unsecured debt and secured debt of the Operating Partnership outstanding as of September 30, 2017 was as follows:

	Aggregate Principal  Amount Outstanding
	(in thousands)
Unsecured Line of Credit (1)	$	60,000
Unsecured Senior Notes due 2018	325,000
Unsecured Senior Notes due 2020	250,000
Unsecured Senior Notes due 2023	300,000
Unsecured Senior Notes due 2025	400,000
Unsecured Senior Notes due 2029	400,000
Unsecured Senior Notes Series A & B due 2027 & 2029	250,000
Secured Debt	464,025
Total Unsecured and Secured Debt	$	2,449,025
Less: Unamortized Net Discounts and Deferred Financing Costs	(13,816		)
Total Debt, Net	$	2,435,209

________________________

(1) As of September 30, 2017, there was no outstanding balance on the unsecured term loan facility.

Debt Composition

Refer to our 2016 Annual Report on Form 10-K for our debt composition as of December 31, 2016. There were no material changes to our overall debt composition information including but not limited to secured to unsecured ratios, floating rate to fixed rate ratios, weighted average maturity and weighted average interest rate during the nine months ended September 30, 2017.

Liquidity Uses

Contractual Obligations

Refer to our 2016 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, 2017.

Other Liquidity Uses

Development Activities

As of September 30, 2017, we had four development projects under construction.  These projects have a total estimated investment of approximately $1.4 billion of which we have incurred approximately $708.1 million and committed an additional $622 million and we expect we will incur additional tenant improvement costs based on leasing activity. Additionally, as of September 30, 2017, we have four completed development projects with approximately $35 million in remaining trailing development and leasing costs. Furthermore, we currently believe we may spend up to an additional $50 million on development pipeline projects during the remainder of 2017.  Ultimate timing of these expenditures may fluctuate given construction progress and leasing status of the 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 or the disposition of assets under our capital recycling program.

6.875% Series G and 6.375% Series H Cumulative Redeemable Preferred Stock

On March 30, 2017, the Company redeemed all 4,000,000 shares of its Series G Preferred Stock. The shares of Series G Preferred Stock were redeemed at a redemption price of $25.00 per share plus accumulated and unpaid dividends for a total cash outflow totaling approximately $100.8 million. We have no further distribution requirements with respect to the Series G Preferred Stock. In connection with the redemption of the Series G Preferred Stock, we incurred an associated non-cash charge of $3.8 million as a reduction to net income available to common stockholders for the related original issuance costs.

48

On August 15, 2017, the Company redeemed all 4,000,000 shares of its Series H Preferred Stock. The shares of Series H Preferred Stock were redeemed at a redemption price of $25.00 per share for a total cash outflow of $100.0 million. We have no further distribution requirements with respect to the Series H Preferred Stock. In connection with the redemption of the Series H Preferred Stock, we incurred an associated non-cash charge of $3.7 million as a reduction to net income available to common stockholders for the related original issuance costs.

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. Our next debt maturity with a balance of $123.8 million at September 30, 2017 occurs in February 2018 for mortgage debt held by 303 Second Street Member, LLC, a property partnership in which the Company has a 56% common equity interest. We have the option to prepay this debt without penalty in the fourth quarter of 2017 and intend to do so, at which time we will fund our proportionate share of the payoff amount and the minority owner will contribute capital to pay off its proportionate share. We also have an additional $325.0 million of unsecured senior notes maturing in July 2018.

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 continue to 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. As of September 30, 2017, we had $30.6 million of refundable acquisition deposits, subject to closing conditions required to be met by the seller, for potential future acquisitions. 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

On February 23, 2016, the Company’s Board of Directors approved a 4,000,000 share increase to the Company’s existing share repurchase program bringing the total current repurchase authorization to 4,988,025 shares. As of September 30, 2017, 4,935,826 shares remain eligible for repurchase under the Company’s share repurchase program. 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 are required to spend on tenant improvements and leasing costs we ultimately incur will depend on actual leasing activity. Tenant improvements and leasing costs generally fluctuate in any given period depending on factors such as the type of 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 or improve our properties.

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,

49

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, and the amount of our future borrowings. These events could result in the following:

• 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, the Series A and B 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 Term Loan Facility (as defined in the applicable Credit Agreements) (1):	Covenant Level	Actual Performance as of September 30, 2017
Total debt to total asset value	less than 60%	25%
Fixed charge coverage ratio	greater than 1.5x	3.3x
Unsecured debt ratio	greater than 1.67x	4.12x
Unencumbered asset pool debt service coverage	greater than 1.75x	4.41x
Unsecured Senior Notes due 2018, 2020, 2023, 2025 and 2029 (as defined in the applicable Indentures):
Total debt to total asset value	less than 60%	32%
Interest coverage	greater than 1.5x	7.1x
Secured debt to total asset value	less than 40%	6%
Unencumbered asset pool value to unsecured debt	greater than 150%	329%

________________________

(1) As of September 30, 2017, the covenant performance under the Unsecured Senior Notes Series A and B due 2027 and 2029 (“private placement notes”), was substantially similar to the Facility; however, the unsecured debt ratio under the private placement notes was 3.61x reflecting definitional differences on unencumbered value. The Operating Partnership was in compliance under the credit agreement of the private placement notes as of September 30, 2017.

The Operating Partnership was in compliance with all of its debt covenants as of September 30, 2017. 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. 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 of 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, 2017 as compared to the nine months ended September 30, 2016 is as follows:

50

	Nine Months Ended September 30,
	2017			2016			Dollar Change			Percentage Change
	($ in thousands)
Net cash provided by operating activities	$	276,542		$	252,605		$	23,937		9.5	%
Net cash used in investing activities	(180,712		)	(67,402		)	(113,310		)	168.1	%
Net cash (used in) provided by financing activities	(101,729		)	65,617			(167,346		)	(255.0	)%

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 $23.9 million, or 9.5%, for the nine months ended September 30, 2017 compared to the nine months ended September 30, 2016 primarily as a result of an increase in cash Net Operating Income generated from our Stabilized Development, Acquisition and Same Store Portfolios. 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 increased by $113.3 million or 168.1% for the nine months ended September 30, 2017, compared to the nine months ended September 30, 2016 primarily due to lower net proceeds received from dispositions during the nine months ended September 30, 2017 as compared to the nine months ended September 30, 2016.

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. During the nine months ended September 30, 2017, we had net cash used in financing activities of $101.7 million compared to net cash provided by financing activities of $65.6 million during the nine months ended September 30, 2016 primarily due to the redemption of the Company’s Series G Preferred Stock and Series H Preferred Stock and the January 2017 payment of the special dividend declared in December 2016, partially offset by proceeds from the January 2017 common stock offering.

Off-Balance Sheet Arrangements

As of September 30, 2017 and as of the date this report was filed, we did not have any off-balance sheet transactions, arrangements or obligations, including contingent obligations.

51

Non-GAAP Supplemental Financial Measure: Funds From Operations

We calculate FFO in accordance with the 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, 2017 and 2016:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
	(in thousands)
Net income available to common stockholders	$	66,558		$	50,582		$	122,720		$	251,112
Adjustments:
Net income attributable to noncontrolling common units of the Operating Partnership	1,394			1,453			2,633			5,892
Net income attributable to noncontrolling interests in consolidated property partnerships	2,984			1,027			9,359			1,438
Depreciation and amortization of real estate assets	61,141			55,460			181,875			157,587
Gains on sales of depreciable real estate	(37,250		)	(18,312		)	(39,507		)	(164,302		)
Funds From Operations attributable to noncontrolling interests in consolidated property partnerships	(5,280		)	(1,675		)	(16,832		)	(2,277		)
Funds From Operations (1)(2)	$	89,547		$	88,535		$	260,248		$	249,450

________________________

(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 $4.2 millionand $3.6 million for the three months ended September 30, 2017 and 2016, respectively, and $12.4 million and $9.7 million for the nine months ended September 30, 2017 and 2016, respectively.

52

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Information about our market risk is disclosed in Part II, Item 7A, of our Annual Report on Form 10-K for the fiscal year ended December 31, 2016, and is incorporated herein by reference. There have been no material changes for the nine months ended September 30, 2017, to the information provided in Part II, Item 7A, of our Annual Report on Form 10-K for the fiscal year ended December 31, 2016.

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, 2017, 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 significant changes that occurred during the quarter 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, 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 the effectiveness of the design and operation of the disclosure controls and procedures as of September 30, 2017, the end of the period covered by this report. Based on the foregoing, the Operating Partnership’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 significant changes that occurred during the quarter 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, our internal control over financial reporting.

53

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, 2017, 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, 2016.

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, 2017.

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, 2017 - July 31, 2017	11,853	$	73.35	—	—
August 1, 2017 - August 31, 2017	6,650	68.78		—	—
September 1, 2017 - September 30, 2017	249	68.10		—	—
Total	18,752	$	71.66	—	—

_______________

(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.

54

ITEM 6. EXHIBITS

Exhibit Number	Description
3.(i)1	Kilroy Realty Corporation Articles of Restatement (previously filed by Kilroy Realty Corporation as an exhibit on Form 10-Q for the quarter ended June 30, 2012)
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)
10.1	General Partner Guaranty Agreement, dated February 17, 2017 (previously filed by Kilroy Realty Corporation on Form 10-Q for the quarter ended March 31, 2017)
10.2†	Kilroy Realty 2006 Incentive Award Plan (previously filed by Kilroy Realty Corporation on Form 8-K as filed with the Securities and Exchange Commission on May 23, 2017)
10.3	Second Amended and Restated Credit Agreement dated as of July 24, 2017 (previously filed by Kilroy Realty Corporation on Form 10-Q for the quarter ended June 30, 2017)
10.4	Second Amended and Restated Guaranty dated as of July 24, 2017 (previously filed by Kilroy Realty Corporation on Form 10-Q for the quarter ended June 30, 2017)
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, 2017, formatted in 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)

_______________

*	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.

55

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 26, 2017.

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/ Heidi R. Roth
		Heidi R. Roth Executive Vice President and Chief Accounting Officer (Principal Accounting Officer)

56

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 26, 2017.

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/ Heidi R. Roth
		Heidi R. Roth Executive Vice President and Chief Accounting Officer (Principal Accounting Officer)

57

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 26, 2017

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 26, 2017

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 26, 2017

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 26, 2017

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, 2017 (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 26, 2017

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, 2017 (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 26, 2017

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, 2017 (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 26, 2017

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, 2017 (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 26, 2017

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

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 20, 2017
Entity Registrant Name	KILROY REALTY CORP
Entity Central Index Key	0001025996
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		98,382,256
Kilroy Realty, L.P. [Member]
Entity Registrant Name	Kilroy Realty, L.P.
Entity Central Index Key	0001493976
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
Amendment Flag	false

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
REAL ESTATE ASSETS:
Land and improvements	$ 1,076,172	$ 1,108,971
Buildings and improvements	4,871,667	4,938,250
Undeveloped land and construction in progress	1,292,017	1,013,533
Total real estate assets held for investment	7,239,856	7,060,754
Accumulated depreciation and amortization	(1,216,358)	(1,139,853)
Total real estate assets held for investment, net	6,023,498	5,920,901
REAL ESTATE ASSETS AND OTHER ASSETS HELD FOR SALE, NET	0	9,417
CASH AND CASH EQUIVALENTS	64,954	193,418
RESTRICTED CASH (Note 2)	179,276	56,711
MARKETABLE SECURITIES (Note 11)	18,851	14,773
CURRENT RECEIVABLES, NET (Note 3)	18,626	13,460
DEFERRED RENT RECEIVABLES, NET (Note 3)	238,959	218,977
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET	185,420	208,368
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 4)	108,715	70,608
TOTAL ASSETS	6,838,299	6,706,633
LIABILITIES:
Secured debt, net (Notes 5 and 11)	465,828	472,772
Unsecured debt, net (Notes 5 and 11)	1,909,381	1,847,351
Unsecured line of credit (Notes 5 and 11)	60,000	0
Accounts payable, accrued expenses and other liabilities	271,405	202,391
Accrued dividends and distributions (Note 16)	43,324	222,306
Deferred revenue and acquisition-related intangible liabilities, net	145,556	150,360
Rents received in advance and tenant security deposits	46,925	52,080
Liabilities of real estate assets held for sale	0	56
Total liabilities	2,942,419	2,947,316
COMMITMENTS AND CONTINGENCIES (Note 10)
Preferred stock, $.01 par value, 30,000,000 shares authorized:
Common stock, $.01 par value, 150,000,000 shares authorized, 98,382,256 and 93,219,439 shares issued and outstanding, respectively	984	932
Additional paid-in capital	3,797,546	3,457,649
Distributions in excess of earnings	(108,667)	(107,997)
Total stockholders’ equity	3,689,863	3,542,995
Noncontrolling Interests:
Common units of the Operating Partnership (Note 6)	77,911	85,590
Noncontrolling interests in consolidated property partnerships (Note 1)	128,106	130,732
Total noncontrolling interests	206,017	216,322
Total equity	3,895,880	3,759,317
TOTAL LIABILITIES AND EQUITY (CAPITAL)	6,838,299	6,706,633
6.875% Series G Cumulative Redeemable Preferred stock, $.01 par value, no shares issued and outstanding at 9/30/2017, and 4,000,000 shares authorized, issued and outstanding ($100,000 liquidation preference) at 12/31/2016 [Member]
Preferred stock, $.01 par value, 30,000,000 shares authorized:
Cumulative Redeemable Preferred stock	0	96,155
6.375% Series H Cumulative Redeemable Preferred stock, $.01 par value, no shares issued and outstanding at 9/30/2017, and 4,000,000 shares authorized, issued and outstanding ($100,000 liquidation preference) at 12/31/2016 [Member]
Preferred stock, $.01 par value, 30,000,000 shares authorized:
Cumulative Redeemable Preferred stock	$ 0	$ 96,256

XML

Consolidated Balance Sheets (Parenthetical) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares issued (in shares)	98,382,256	93,219,439
Common stock, shares outstanding	98,382,256	93,219,439
Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	30,000,000	30,000,000
Series G Cumulative Redeemable Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0	$ 0.01
Preferred stock, shares authorized	0	4,000,000
Preferred stock, shares issued	0	4,000,000
Preferred stock, shares outstanding	0	4,000,000
Preferred stock dividend rate percentage	0.00%	6.875%
Preferred stock liquidation preference	$ 0	$ 100,000,000
Series H Cumulative Redeemable Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0	$ 0.01
Preferred stock, shares authorized	0	4,000,000
Preferred stock, shares issued	0	4,000,000
Preferred stock, shares outstanding	0	4,000,000
Preferred stock dividend rate percentage	0.00%	6.375%
Preferred stock liquidation preference	$ 0	$ 100,000,000

XML

Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
REVENUES
Rental income	$ 159,954	$ 146,539	$ 475,527	$ 423,947
Tenant reimbursements	19,665	16,406	58,228	43,948
Other property income	1,915	5,403	7,685	6,032
Total revenues	181,534	168,348	541,440	473,927
EXPENSES
Property expenses	33,070	30,050	97,615	85,236
Real estate taxes	16,371	14,501	50,878	39,378
Provision for bad debts	1,036	0	2,743	0
Ground leases	1,562	909	4,751	2,506
General and administrative expenses	14,514	13,533	43,750	40,949
Acquisition-related expenses (Note 1)	0	188	0	964
Depreciation and amortization	62,567	56,666	185,737	160,452
Total expenses	129,120	115,847	385,474	329,485
OTHER (EXPENSES) INCOME
Interest income and other net investment gains (Note 11)	1,526	538	3,629	1,120
Interest expense (Note 5)	(16,151)	(14,976)	(51,476)	(41,189)
Total other (expenses) income	(14,625)	(14,438)	(47,847)	(40,069)
INCOME FROM OPERATIONS BEFORE GAINS (LOSS) ON SALES OF REAL ESTATE	37,789	38,063	108,119	104,373
Net gain (loss) on sale of land (Note 2)	449	0	449	(295)
Gains on sales of depreciable operating properties (Note 2)	37,250	18,312	39,507	164,302
NET INCOME	75,488	56,375	148,075	268,380
Net income attributable to noncontrolling common units of the Operating Partnership (Note 6)	(1,394)	(1,453)	(2,633)	(5,892)
Net income attributable to noncontrolling interests in consolidated property partnerships	(2,984)	(1,027)	(9,359)	(1,438)
Total income attributable to noncontrolling interests	(4,378)	(2,480)	(11,992)	(7,330)
NET INCOME ATTRIBUTABLE TO KILROY REALTY CORPORATION (KILROY REALTY, L.P.)	71,110	53,895	136,083	261,050
Preferred dividends	(808)	(3,313)	(5,774)	(9,938)
Original issuance costs of redeemed preferred stock (preferred units)	(3,744)	0	(7,589)	0
Total preferred dividends	(4,552)	(3,313)	(13,363)	(9,938)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS (UNITHOLDERS)	$ 66,558	$ 50,582	$ 122,720	$ 251,112
Net income available to common stockholders per share – basic (in dollars per share) (Note 12)	$ 0.67	$ 0.54	$ 1.24	$ 2.71
Net income available to common stockholders per share – diluted (in dollars per share) (Note 12)	$ 0.67	$ 0.54	$ 1.23	$ 2.69
Weighted average common shares outstanding – basic (in shares) (Note 12)	98,352,139	92,227,016	98,008,780	92,220,522
Weighted average common shares outstanding – diluted (in shares) (Note 12)	98,911,612	92,920,406	98,591,048	92,831,538
Dividends declared per common share (in dollars per share)	$ 0.425	$ 0.375000	$ 1.225	$ 1.1

XML

Consolidated Statements of Equity (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Common Stock Additional Paid-in Capital [Member]	Common Stock Distributions in Excess of Earnings [Member]	Total Stockholders' Equity [Member]	Noncontrolling Interests [Member]
Beginning balance at Dec. 31, 2015	$ 3,234,586	$ 192,411	$ 923	$ 3,047,894	$ (70,262)	$ 3,170,966	$ 63,620
Beginning balance (in shares) at Dec. 31, 2015			92,258,690
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	268,380				261,050	261,050	7,330
Original issuance costs of redeemed preferred stock (preferred units)	0
Issuance of share-based compensation awards	1,339			1,339		1,339
Non-cash amortization of share-based compensation	19,303			19,303		19,303
Exercise of stock options (Note 9) (in shares)			51,000
Exercise of stock options (Note 9)	2,173			2,173		2,173
Settlement of restricted stock units for shares of common stock, shares			72,130
Settlement of restricted stock units for shares of common stock	0		$ 1	(1)		0
Repurchase of common stock, stock options and restricted stock units, shares			(110,528)
Repurchase of common stock, stock options and restricted stock units	(6,874)		$ (1)	(6,873)		(6,874)
Issuance of common units in connection with acquisition	48,033						48,033
Exchange of common units of the Operating Partnership, shares			1,200
Exchange of common units of the Operating Partnership	0			39		39	(39)
Contributions from noncontrolling interests in consolidated property partnerships	191,676			113,022		113,022	78,654
Distributions to noncontrolling interests in consolidated property partnerships	(1,139)						(1,139)
Adjustment for noncontrolling interest	0			14,822		14,822	(14,822)
Preferred dividends	(9,938)				(9,938)	(9,938)
Dividends declared per common share and common unit ($1.225 and $1.10 per share/unit for the nine months ended September 2017 and 2016, respectively)	(105,637)				(102,743)	(102,743)	(2,894)
Ending balance at Sep. 30, 2016	3,641,902	192,411	$ 923	3,191,718	78,107	3,463,159	178,743
Ending balance (in shares) at Sep. 30, 2016			92,272,492
Beginning balance at Dec. 31, 2016	$ 3,759,317	192,411	$ 932	3,457,649	(107,997)	3,542,995	216,322
Beginning balance (in shares) at Dec. 31, 2016	93,219,439		93,219,439
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 148,075				136,083	136,083	11,992
Redemption of Series G and H Preferred stock (Note 7)	(200,000)	(192,411)				(200,000)
Original issuance costs of redeemed preferred stock (preferred units)	(7,589)				(7,589)
Issuance of common stock, shares (Note 7)			4,427,500
Issuance of common stock (Note 7)	308,812		$ 44	308,768		308,812
Issuance of share-based compensation awards	5,291			5,291		5,291
Non-cash amortization of share-based compensation	19,013			19,013		19,013
Exercise of stock options (Note 9) (in shares)			282,000
Exercise of stock options (Note 9)	12,051		$ 4	12,047		12,051
Settlement of restricted stock units for shares of common stock, shares			317,848
Settlement of restricted stock units for shares of common stock	0		$ 3	(3)		0
Repurchase of common stock, stock options and restricted stock units, shares			(168,881)
Repurchase of common stock, stock options and restricted stock units	(12,986)		$ (2)	(12,984)		(12,986)
Exchange of common units of the Operating Partnership, shares			304,350
Exchange of common units of the Operating Partnership	0		$ 3	10,936		10,939	(10,939)
Contributions from noncontrolling interests in consolidated property partnerships	250					0	250
Distributions to noncontrolling interests in consolidated property partnerships	(12,234)					0	(12,234)
Adjustment for noncontrolling interest	0			(3,171)		(3,171)	3,171
Preferred dividends	(5,774)				(5,774)	(5,774)
Dividends declared per common share and common unit ($1.225 and $1.10 per share/unit for the nine months ended September 2017 and 2016, respectively)	(125,935)				(123,390)	(123,390)	(2,545)
Ending balance at Sep. 30, 2017	$ 3,895,880	$ 0	$ 984	$ 3,797,546	$ (108,667)	$ 3,689,863	$ 206,017
Ending balance (in shares) at Sep. 30, 2017	98,382,256		98,382,256

XML

Consolidated Statements of Equity (Unaudited) (Parenthetical) - $ / shares		3 Months Ended		9 Months Ended
	Dec. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Stockholders' Equity [Abstract]
Dividends declared per common share and common unit (in dollars per share)	$ 1.90	$ 0.425	$ 0.375000	$ 1.225	$ 1.1

XML

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 148,075	$ 268,380
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	181,875	157,587
Depreciation of non-real estate furniture, fixtures and equipment	3,862	2,865
Increase in provision for bad debts	2,743	0
Non-cash amortization of share-based compensation awards	13,617	15,263
Non-cash amortization of deferred financing costs and debt discounts and premiums	2,398	2,020
Non-cash amortization of net below market rents	(6,026)	(5,128)
Gains on sales of depreciable operating properties (Note 2)	(39,507)	(164,302)
(Gain) loss on sale of land (Note 2)	(449)	295
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(12,394)	(9,700)
Straight-line rents	(25,537)	(22,856)
Net change in other operating assets	(16,970)	(7,263)
Net change in other operating liabilities	24,855	15,444
Net cash provided by operating activities	276,542	252,605
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development properties and undeveloped land	(270,839)	(222,719)
Expenditures for operating properties and other capital assets	(61,875)	(81,688)
Net proceeds received from dispositions (Note 2)	182,492	325,031
(Increase) decrease in acquisition-related deposits	(30,490)	1,902
Expenditures for acquisition of operating properties	0	(55,415)
Expenditures for acquisition of undeveloped land	0	(33,513)
Increase in note receivable	0	(1,000)
Net cash used in investing activities	(180,712)	(67,402)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock (Note 7)	308,812	0
Redemption of Series G and H Preferred stock (Note 7)	(200,000)	0
Proceeds from the issuance of unsecured debt (Note 5)	250,000	0
Repayments of unsecured debt (Note 5)	(189,000)	0
Borrowings on unsecured revolving credit facility	70,000	305,000
Repayments on unsecured revolving credit facility	(10,000)	(305,000)
Principal payments on secured debt	(5,740)	(7,254)
Financing costs	(7,480)	(1,485)
Repurchase of common stock and restricted stock units	(12,986)	(6,874)
Proceeds from exercise of stock options	12,051	2,173
Contributions from noncontrolling interests in consolidated property partnerships	250	191,676
Distributions to noncontrolling interests in consolidated property partnerships	(12,234)	(1,139)
Dividends and distributions paid to common stockholders and common unitholders	(297,993)	(101,542)
Dividends and distributions paid to preferred stockholders and preferred unitholders (Note 7)	(7,409)	(9,938)
Net cash (used in) provided by financing activities	(101,729)	65,617
Net (decrease) increase in cash and cash equivalents and restricted cash	(5,899)	250,820
Cash and cash equivalents and restricted cash, beginning of period	250,129	57,204
Cash and cash equivalents and restricted cash, end of period	$ 244,230	$ 308,024

XML

Consolidated Balance Sheets (KILROY REALTY, L.P.) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
REAL ESTATE ASSETS:
Land and improvements	$ 1,076,172	$ 1,108,971
Buildings and improvements	4,871,667	4,938,250
Undeveloped land and construction in progress	1,292,017	1,013,533
Total real estate assets held for investment	7,239,856	7,060,754
Accumulated depreciation and amortization	(1,216,358)	(1,139,853)
Total real estate assets held for investment, net	6,023,498	5,920,901
REAL ESTATE ASSETS AND OTHER ASSETS HELD FOR SALE, NET	0	9,417
CASH AND CASH EQUIVALENTS	64,954	193,418
RESTRICTED CASH (Note 2)	179,276	56,711
MARKETABLE SECURITIES (Note 11)	18,851	14,773
CURRENT RECEIVABLES, NET (Note 3)	18,626	13,460
DEFERRED RENT RECEIVABLES, NET (Note 3)	238,959	218,977
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET	185,420	208,368
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 4)	108,715	70,608
TOTAL ASSETS	6,838,299	6,706,633
LIABILITIES:
Secured debt, net (Notes 5 and 11)	465,828	472,772
Unsecured debt, net (Notes 5 and 11)	1,909,381	1,847,351
Unsecured line of credit (Notes 5 and 11)	60,000	0
Accounts payable, accrued expenses and other liabilities	271,405	202,391
Accrued distributions (Note 16)	43,324	222,306
Deferred revenue and acquisition-related intangible liabilities, net	145,556	150,360
Rents received in advance and tenant security deposits	46,925	52,080
Liabilities of real estate assets held for sale	0	56
Total liabilities	2,942,419	2,947,316
COMMITMENTS AND CONTINGENCIES (Note 10)
Partners’ Capital (Note 8):
TOTAL LIABILITIES AND EQUITY (CAPITAL)	6,838,299	6,706,633
Kilroy Realty, L.P. [Member]
REAL ESTATE ASSETS:
Land and improvements	1,076,172	1,108,971
Buildings and improvements	4,871,667	4,938,250
Undeveloped land and construction in progress	1,292,017	1,013,533
Total real estate assets held for investment	7,239,856	7,060,754
Accumulated depreciation and amortization	(1,216,358)	(1,139,853)
Total real estate assets held for investment, net	6,023,498	5,920,901
REAL ESTATE ASSETS AND OTHER ASSETS HELD FOR SALE, NET	0	9,417
CASH AND CASH EQUIVALENTS	64,954	193,418
RESTRICTED CASH (Note 2)	179,276	56,711
MARKETABLE SECURITIES (Note 11)	18,851	14,773
CURRENT RECEIVABLES, NET (Note 3)	18,626	13,460
DEFERRED RENT RECEIVABLES, NET (Note 3)	238,959	218,977
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET	185,420	208,368
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 4)	108,715	70,608
TOTAL ASSETS	6,838,299	6,706,633
LIABILITIES:
Secured debt, net (Notes 5 and 11)	465,828	472,772
Unsecured debt, net (Notes 5 and 11)	1,909,381	1,847,351
Unsecured line of credit (Notes 5 and 11)	60,000	0
Accounts payable, accrued expenses and other liabilities	271,405	202,391
Accrued distributions (Note 16)	43,324	222,306
Deferred revenue and acquisition-related intangible liabilities, net	145,556	150,360
Rents received in advance and tenant security deposits	46,925	52,080
Liabilities of real estate assets held for sale	0	56
Total liabilities	2,942,419	2,947,316
COMMITMENTS AND CONTINGENCIES (Note 10)
Partners’ Capital (Note 8):
Common units, 98,382,256 and 93,219,439 held by the general partner and 2,077,193 and 2,381,543 held by common limited partners issued and outstanding, respectively	3,763,078	3,431,768
Total partners’ capital	3,763,078	3,624,179
Noncontrolling interests in consolidated property partnerships and subsidiaries (Note 1)	132,802	135,138
Total capital	3,895,880	3,759,317
TOTAL LIABILITIES AND EQUITY (CAPITAL)	6,838,299	6,706,633
Kilroy Realty, L.P. [Member] | Series G Cumulative Redeemable Preferred Units [Member]
Partners’ Capital (Note 8):
Cumulative Redeemable Preferred units	0	96,155
Kilroy Realty, L.P. [Member] | Series H Cumulative Redeemable Preferred Units [Member]
Partners’ Capital (Note 8):
Cumulative Redeemable Preferred units	$ 0	$ 96,256

XML

Consolidated Balance Sheets (KILROY REALTY, L.P.) (Parenthetical) - Kilroy Realty, L.P. [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Series G Cumulative Redeemable Preferred Units [Member]
Preferred units, issued	0	4,000,000
Preferred units, outstanding	0	4,000,000
Preferred stock dividend rate percentage	0.00%	6.875%
Preferred stock liquidation preference	$ 0	$ 100,000
Series H Cumulative Redeemable Preferred Units [Member]
Preferred units, issued	0	4,000,000
Preferred units, outstanding	0	4,000,000
Preferred stock dividend rate percentage	0.00%	6.375%
Preferred stock liquidation preference	$ 0	$ 100,000
Common Units [Member]
General partner, units issued	98,382,256	93,219,439
General partners, units outstanding	98,382,256	93,219,439
Limited partners, units issued	2,077,193	2,381,543
Noncontrolling common units of the Operating Partnership	2,077,193	2,381,543

XML

Consolidated Statements of Operations (KILROY REALTY, L.P.) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
REVENUES
Rental income	$ 159,954	$ 146,539	$ 475,527	$ 423,947
Tenant reimbursements	19,665	16,406	58,228	43,948
Other property income	1,915	5,403	7,685	6,032
Total revenues	181,534	168,348	541,440	473,927
EXPENSES
Property expenses	33,070	30,050	97,615	85,236
Real estate taxes	16,371	14,501	50,878	39,378
Provision for bad debts	1,036	0	2,743	0
Ground leases	1,562	909	4,751	2,506
General and administrative expenses	14,514	13,533	43,750	40,949
Acquisition-related expenses (Note 1)	0	188	0	964
Depreciation and amortization	62,567	56,666	185,737	160,452
Total expenses	129,120	115,847	385,474	329,485
OTHER (EXPENSES) INCOME
Interest income and other net investment gains (Note 11)	1,526	538	3,629	1,120
Interest expense (Note 5)	(16,151)	(14,976)	(51,476)	(41,189)
Total other (expenses) income	(14,625)	(14,438)	(47,847)	(40,069)
Net gain (loss) on sale of land (Note 2)	449	0	449	(295)
Gains on sales of depreciable operating properties (Note 2)	37,250	18,312	39,507	164,302
NET INCOME	75,488	56,375	148,075	268,380
Net income attributable to noncontrolling interests in consolidated property partnerships and subsidiaries	(4,378)	(2,480)	(11,992)	(7,330)
NET INCOME ATTRIBUTABLE TO KILROY REALTY CORPORATION (KILROY REALTY, L.P.)	71,110	53,895	136,083	261,050
Original issuance costs of redeemed preferred stock (preferred units)	(3,744)	0	(7,589)	0
Total preferred distributions	(4,552)	(3,313)	(13,363)	(9,938)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS (UNITHOLDERS)	$ 66,558	$ 50,582	$ 122,720	$ 251,112
Net income available to common unitholders per unit-basic (in dollars per unit) (Note 13)	$ 0.67	$ 0.54	$ 1.24	$ 2.71
Net income available to common unitholders per unit-diluted (in dollars per unit) (Note 13)	$ 0.67	$ 0.54	$ 1.23	$ 2.69
Weighted average common units outstanding - basic (in units) (Note 13)	98,352,139	92,227,016	98,008,780	92,220,522
Weighted average common units outstanding - diluted (in units) (Note 13)	98,911,612	92,920,406	98,591,048	92,831,538
Kilroy Realty, L.P. [Member]
REVENUES
Rental income	$ 159,954	$ 146,539	$ 475,527	$ 423,947
Tenant reimbursements	19,665	16,406	58,228	43,948
Other property income	1,915	5,403	7,685	6,032
Total revenues	181,534	168,348	541,440	473,927
EXPENSES
Property expenses	33,070	30,050	97,615	85,236
Real estate taxes	16,371	14,501	50,878	39,378
Provision for bad debts	1,036	0	2,743	0
Ground leases	1,562	909	4,751	2,506
General and administrative expenses	14,514	13,533	43,750	40,949
Acquisition-related expenses (Note 1)	0	188	0	964
Depreciation and amortization	62,567	56,666	185,737	160,452
Total expenses	129,120	115,847	385,474	329,485
OTHER (EXPENSES) INCOME
Interest income and other net investment gains (Note 11)	1,526	538	3,629	1,120
Interest expense (Note 5)	(16,151)	(14,976)	(51,476)	(41,189)
Total other (expenses) income	(14,625)	(14,438)	(47,847)	(40,069)
INCOME FROM OPERATIONS BEFORE GAINS (LOSS) ON SALES OF REAL ESTATE	37,789	38,063	108,119	104,373
Net gain (loss) on sale of land (Note 2)	449	0	449	(295)
Gains on sales of depreciable operating properties (Note 2)	37,250	18,312	39,507	164,302
NET INCOME	75,488	56,375	148,075	268,380
Net income attributable to noncontrolling interests in consolidated property partnerships and subsidiaries	(3,086)	(1,121)	(9,648)	(1,703)
NET INCOME ATTRIBUTABLE TO KILROY REALTY CORPORATION (KILROY REALTY, L.P.)	72,402	55,254	138,427	266,677
Preferred distributions	(808)	(3,313)	(5,774)	(9,938)
Original issuance costs of redeemed preferred stock (preferred units)	(3,744)	0	(7,589)	0
Total preferred distributions	(4,552)	(3,313)	(13,363)	(9,938)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS (UNITHOLDERS)	$ 67,850	$ 51,941	$ 125,064	$ 256,739
Net income available to common unitholders per unit-basic (in dollars per unit) (Note 13)	$ 0.67	$ 0.54	$ 1.23	$ 2.70
Net income available to common unitholders per unit-diluted (in dollars per unit) (Note 13)	$ 0.67	$ 0.54	$ 1.23	$ 2.68
Weighted average common units outstanding - basic (in units) (Note 13)	100,429,332	94,858,292	100,160,595	94,630,183
Weighted average common units outstanding - diluted (in units) (Note 13)	100,988,805	95,551,682	100,742,863	95,241,199
Dividends declared per common unit (in dollars per unit)	$ 0.425	$ 0.375	$ 1.225	$ 1.1000

XML

Consolidated Statements of Capital (KILROY REALTY, L.P.) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 75,488	$ 56,375	$ 148,075	$ 268,380
Redemption of Series G and H Preferred units (Note 8)			(200,000)
Original issuance costs of redeemed preferred stock (preferred units)	(3,744)	0	(7,589)	0
Non-cash amortization of share-based compensation			19,013	19,303
Settlement of restricted stock units			0	0
Contributions from noncontrolling interests in consolidated property partnerships			250	191,676
Distributions to noncontrolling interests in consolidated property partnerships			(12,234)	(1,139)
Preferred distributions			(5,774)	(9,938)
Noncontrolling Interests [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			11,992	7,330
Contributions from noncontrolling interests in consolidated property partnerships			250	78,654
Distributions to noncontrolling interests in consolidated property partnerships			(12,234)	(1,139)
Kilroy Realty, L.P. [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			3,759,317	3,234,586
Net income	75,488	56,375	148,075	268,380
Redemption of Series G and H Preferred units (Note 8)			(200,000)
Original issuance costs of redeemed preferred stock (preferred units)	(3,744)	0	(7,589)	0
Issuance of common units (Note 8)			308,812
Issuance of common units in connection with acquisition				48,033
Issuance of share-based compensation awards			5,291	1,339
Non-cash amortization of share-based compensation			19,013	19,303
Exercise of stock options (Note 9)			12,051	2,173
Repurchase of common units, stock options and restricted stock units			(12,986)	(6,874)
Settlement of restricted stock units			0	0
Contributions from noncontrolling interests in consolidated property partnerships			250	191,676
Distributions to noncontrolling interests in consolidated property partnerships			(12,234)	(1,139)
Preferred distributions			(5,774)	(9,938)
Distributions declared per common unit ($1.225 and $1.10 per unit for the nine months ended September 2017 and 2016, respectively)			(125,935)	(105,637)
Ending balance	3,895,880	3,641,902	3,895,880	3,641,902
Kilroy Realty, L.P. [Member] | Partners Capital Preferred Units [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			192,411	192,411
Redemption of Series G and H Preferred units (Note 8)			192,411
Ending balance	0	192,411	0	192,411
Kilroy Realty, L.P. [Member] | Partners Capital Common Unit [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			$ 3,431,768	$ 3,031,609
Beginning balance (in units)			95,600,982	94,023,465
Net income			$ 138,427	$ 266,677
Original issuance costs of redeemed preferred stock (preferred units)			$ (7,589)
Issuance of common units (in units) (Note 8)			4,427,500
Issuance of common units (Note 8)			$ 308,812
Issuance of common units in connection with acquisition (in units)				867,701
Issuance of common units in connection with acquisition				$ 48,033
Issuance of share-based compensation awards			5,291	1,339
Non-cash amortization of share-based compensation			$ 19,013	$ 19,303
Exercise of stock options (Note 9) (in units)			282,000	51,000
Exercise of stock options (Note 9)			$ 12,051	$ 2,173
Repurchase of common units and restricted stock units (in units)			(168,881)	(110,528)
Repurchase of common units, stock options and restricted stock units			$ (12,986)	$ (6,874)
Settlement of restricted stock units (in units)			317,848	72,130
Settlement of restricted stock units			$ 0	$ 0
Contributions from noncontrolling interests in consolidated property partnerships				113,022
Preferred distributions			(5,774)	(9,938)
Distributions declared per common unit ($1.225 and $1.10 per unit for the nine months ended September 2017 and 2016, respectively)			(125,935)	(105,637)
Ending balance	$ 3,763,078	$ 3,359,707	$ 3,763,078	$ 3,359,707
Ending balance (in units)	100,459,449	94,903,768	100,459,449	94,903,768
Kilroy Realty, L.P. [Member] | Total Partners Capital [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			$ 3,624,179	$ 3,224,020
Net income			138,427	266,677
Redemption of Series G and H Preferred units (Note 8)			(200,000)
Issuance of common units (Note 8)			308,812
Issuance of common units in connection with acquisition				48,033
Issuance of share-based compensation awards			5,291	1,339
Non-cash amortization of share-based compensation			19,013	19,303
Exercise of stock options (Note 9)			12,051	2,173
Repurchase of common units, stock options and restricted stock units			(12,986)	(6,874)
Settlement of restricted stock units			0	0
Contributions from noncontrolling interests in consolidated property partnerships				113,022
Preferred distributions			(5,774)	(9,938)
Distributions declared per common unit ($1.225 and $1.10 per unit for the nine months ended September 2017 and 2016, respectively)			(125,935)	(105,637)
Ending balance	$ 3,763,078	$ 3,552,118	3,763,078	3,552,118
Kilroy Realty, L.P. [Member] | Noncontrolling Interests [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			135,138	10,566
Net income			9,648	1,703
Contributions from noncontrolling interests in consolidated property partnerships			250	78,654
Distributions to noncontrolling interests in consolidated property partnerships			(12,234)	(1,139)
Ending balance	$ 132,802	$ 89,784	$ 132,802	$ 89,784

XML

Consolidated Statements of Capital (KILROY REALTY, L.P.) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Kilroy Realty, L.P. [Member]
Dividends declared per common unit (in dollars per unit)	$ 0.425	$ 0.375	$ 1.225	$ 1.1000

XML

Consolidated Statements of Cash Flows (KILROY REALTY, L.P.) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 148,075	$ 268,380
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	181,875	157,587
Depreciation of non-real estate furniture, fixtures and equipment	3,862	2,865
Increase in provision for bad debts	2,743	0
Non-cash amortization of share-based compensation awards	13,617	15,263
Non-cash amortization of deferred financing costs and debt discounts and premiums	2,398	2,020
Non-cash amortization of net below market rents	(6,026)	(5,128)
Gains on sales of depreciable operating properties (Note 2)	(39,507)	(164,302)
(Gain) loss on sale of land (Note 2)	(449)	295
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(12,394)	(9,700)
Straight-line rents	(25,537)	(22,856)
Net change in other operating assets	(16,970)	(7,263)
Net change in other operating liabilities	24,855	15,444
Net cash provided by operating activities	276,542	252,605
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development properties and undeveloped land	(270,839)	(222,719)
Expenditures for operating properties and other capital assets	(61,875)	(81,688)
Net proceeds received from dispositions (Note 2)	182,492	325,031
(Increase) decrease in acquisition-related deposits	(30,490)	1,902
Expenditures for acquisition of operating properties	0	(55,415)
Expenditures for acquisition of undeveloped land	0	(33,513)
Increase in note receivable	0	(1,000)
Net cash used in investing activities	(180,712)	(67,402)
CASH FLOWS FROM FINANCING ACTIVITIES:
Redemption of Series G and H Preferred units (Note 8)	(200,000)	0
Proceeds from the issuance of unsecured debt (Note 5)	250,000	0
Repayments of unsecured debt (Note 5)	(189,000)	0
Borrowings on unsecured revolving credit facility	70,000	305,000
Repayments on unsecured revolving credit facility	(10,000)	(305,000)
Principal payments on secured debt	(5,740)	(7,254)
Financing costs	(7,480)	(1,485)
Repurchase of common stock and restricted stock units	(12,986)	(6,874)
Proceeds from exercise of stock options	12,051	2,173
Contributions from noncontrolling interests in consolidated property partnerships	250	191,676
Distributions to noncontrolling interests in consolidated property partnerships	(12,234)	(1,139)
Distributions paid to common unitholders	(297,993)	(101,542)
Distributions paid to preferred unitholders (Note 8)	(7,409)	(9,938)
Net cash (used in) provided by financing activities	(101,729)	65,617
Net (decrease) increase in cash and cash equivalents and restricted cash	(5,899)	250,820
Cash and cash equivalents and restricted cash, beginning of period	250,129	57,204
Cash and cash equivalents and restricted cash, end of period	244,230	308,024
Kilroy Realty, L.P. [Member]
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	148,075	268,380
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	181,875	157,587
Depreciation of non-real estate furniture, fixtures and equipment	3,862	2,865
Increase in provision for bad debts	2,743	0
Non-cash amortization of share-based compensation awards	13,617	15,263
Non-cash amortization of deferred financing costs and debt discounts and premiums	2,398	2,020
Non-cash amortization of net below market rents	(6,026)	(5,128)
Gains on sales of depreciable operating properties (Note 2)	(39,507)	(164,302)
(Gain) loss on sale of land (Note 2)	(449)	295
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(12,394)	(9,700)
Straight-line rents	(25,537)	(22,856)
Net change in other operating assets	(16,970)	(7,263)
Net change in other operating liabilities	24,855	15,444
Net cash provided by operating activities	276,542	252,605
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development properties and undeveloped land	(270,839)	(222,719)
Expenditures for operating properties and other capital assets	(61,875)	(81,688)
Net proceeds received from dispositions (Note 2)	182,492	325,031
(Increase) decrease in acquisition-related deposits	(30,490)	1,902
Expenditures for acquisition of operating properties	0	(55,415)
Expenditures for acquisition of undeveloped land	0	(33,513)
Increase in note receivable	0	(1,000)
Net cash used in investing activities	(180,712)	(67,402)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common units (Note 8)	308,812	0
Redemption of Series G and H Preferred units (Note 8)	(200,000)	0
Proceeds from the issuance of unsecured debt (Note 5)	250,000	0
Repayments of unsecured debt (Note 5)	(189,000)	0
Borrowings on unsecured revolving credit facility	70,000	305,000
Repayments on unsecured revolving credit facility	(10,000)	(305,000)
Principal payments on secured debt	(5,740)	(7,254)
Financing costs	(7,480)	(1,485)
Repurchase of common stock and restricted stock units	(12,986)	(6,874)
Proceeds from exercise of stock options	12,051	2,173
Contributions from noncontrolling interests in consolidated property partnerships	250	191,676
Distributions to noncontrolling interests in consolidated property partnerships	(12,234)	(1,139)
Distributions paid to common unitholders	(297,993)	(101,542)
Distributions paid to preferred unitholders (Note 8)	(7,409)	(9,938)
Net cash (used in) provided by financing activities	(101,729)	65,617
Net (decrease) increase in cash and cash equivalents and restricted cash	(5,899)	250,820
Cash and cash equivalents and restricted cash, beginning of period	250,129	57,204
Cash and cash equivalents and restricted cash, end of period	$ 244,230	$ 308,024

XML

Organization and Basis of Presentation

9 Months Ended

Sep. 30, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Basis of Presentation

Organization and Basis of Presentation

Organization

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 Los Angeles, Orange County, 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”) and Kilroy Realty Finance Partnership, L.P. (the “Finance 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, 2017:

	Number of Buildings	Rentable Square Feet (unaudited)	Number of Tenants	Percentage  Occupied (unaudited)		Percentage Leased (unaudited)
Stabilized Office Properties	101	13,720,598	515	94.0	%	96.2	%

	Number of Buildings	Number of Units	Percentage  Occupied (unaudited)		Percentage Leased (unaudited)
Stabilized Residential Property	1	200	72.0	%	74.5	%

Our stabilized portfolio includes all of our properties with the exception of development and redevelopment properties currently under construction or committed for construction, “lease-up” properties, real estate assets held for sale and undeveloped land. 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 “lease-up” properties as office properties we recently developed or redeveloped that have not yet reached 95% occupancy and are within one year following cessation of major construction activities. There were no operating properties in “lease-up” or held for sale as of September 30, 2017.

During the nine months ended September 30, 2017, we added one development project to our stabilized office portfolio consisting of 365,359 rentable square feet in Hollywood, California. As of September 30, 2017, the following properties were excluded from our stabilized portfolio. We did not have any redevelopment properties at September 30, 2017.

	Number of Properties/Projects	Estimated Rentable Square Feet (1)
Development projects under construction (2)	4	1,800,000

________________________

(1) Estimated rentable square feet upon completion.

(2) Development projects under construction also include 96,000 square feet of retail space and 237 residential units in addition to the estimated office rentable square feet noted above.

Our stabilized portfolio also excludes our near-term and future development pipeline, which as of September 30, 2017 was comprised offivedevelopment sites, representing approximately 47gross acres of undeveloped land.

As of September 30, 2017, 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 twelve office properties and one development project under construction 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 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, 2017, the Company owned a 56% common equity interest in both 100 First LLC and 303 Second LLC. The third property partnership, Redwood City Partners, LLC (“Redwood LLC”) owned two office properties in Redwood City, California. As of September 30, 2017, 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, the Finance Partnership, Kilroy Services, LLC (“KSLLC”), 100 First LLC, 303 Second 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, the Finance Partnership, KSLLC, 100 First LLC, 303 Second LLC, Redwood LLC and all wholly-owned and controlled subsidiaries of the Operating Partnership. All intercompany balances and transactions have been eliminated in the consolidated financial statements.

As of September 30, 2017, the Company owned an approximate 97.9% common general partnership interest in the Operating Partnership. The remaining approximate 2.1% common limited partnership interest in the Operating Partnership as of September 30, 2017 was owned by non-affiliated investors and certain of our executive officers and directors (see Note 6). 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.”

Kilroy Realty Finance, Inc., which is a wholly-owned subsidiary of the Company, is the sole general partner of the Finance Partnership and owns a 1.0% common general partnership interest in the Finance Partnership. The Operating Partnership owns the remaining 99.0% common limited partnership interest. We conduct substantially all of our development activities through KSLLC, which is a wholly owned subsidiary of the Operating Partnership. 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, 2017. 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, 2016.

Variable Interest Entities

The Operating Partnership is a variable interest entity (“VIE”) of the Company 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, 2017, 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, 2017, 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 VIE’s economic performance. As of September 30, 2017, these two VIEs’ total assets, liabilities and noncontrolling interests included on our consolidated balance sheet were approximately $429.4 million (of which $383.7 million related to real estate held for investment), approximately $151.4 million and approximately $121.8 million, respectively. Revenues, income and net assets generated by 100 First LLC and 303 Second LLC may only be used to settle its contractual obligations, which primarily consist of operating expenses, capital expenditures and required distributions.

At December 31, 2016, the consolidated financial statements of the Company and the Operating Partnership included three VIEs in which we were deemed to be the primary beneficiary: 100 First LLC, 303 Second LLC and an entity established during the fourth quarter of 2016 to facilitate a transaction intended to qualify as a like-kind exchange pursuant to Section 1031 of the Code (“Section 1031 Exchange”). In January 2017, the Section 1031 Exchange was successfully completed and the entity established for the 1031 Exchange was no longer a VIE. At December 31, 2016, the impact of consolidating the VIEs increased the Company’s total assets, liabilities and noncontrolling interests on our consolidated balance sheet by approximately $654.3 million (of which $588.6 million related to real estate held for investment), approximately $166.1 million and approximately $124.3 million, respectively.

Adoption of New Accounting Pronouncements

Effective January 1, 2017, the Company adopted FASB ASU No. 2017-01 (“ASU 2017-01”) which clarifies the framework for determining whether an integrated set of assets and activities meets the definition of a business. The revised framework provides a screen for determining whether an integrated set of assets is a business combination or an asset acquisition and clarifies that when substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or a group of similar assets, the set of assets and activities is deemed not to meet the definition of a business. As a result of our adoption of the guidance, which we adopted on a prospective basis, the Company expects that most of our future acquisitions of operating properties and development properties that were previously accounted for as business combinations will instead be accounted for as asset acquisitions under the new guidance. In addition, we expect that most of the transaction costs associated with these future acquisitions will be capitalized as part of the purchase price of the acquisition instead of being expensed as incurred to acquisition-related expenses. The Company did not have any acquisitions of operating properties during the nine months ended September 30, 2017.

Also effective January 1, 2017, the Company adopted ASU No. 2016-18 (“ASU 2016-18”) which requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. The Company adopted ASU 2016-18 on a retrospective basis. Therefore, amounts generally described as restricted cash and restricted cash equivalents are included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the Company’s consolidated statements of cash flows for the nine months ended September 30, 2017 and 2016. As a result of the adoption of ASU 2016-18, the change in restricted cash is no longer presented as a separate line item within cash flows from investing activities on the Company’s consolidated statements of cash flows since such balances are now included in total cash at both the beginning and end of the reporting period. As a result, for the nine months ended September 30, 2016, the Company had net cash used in investing activities of $67.4 million instead of net cash used in investing activities of $124.2 million as previously reported since the Company had an increase in restricted cash of $56.8 million during the nine months ended September 30, 2016 primarily due to $48.4 million of restricted cash that was held at qualified intermediaries to facilitate potential future Section1031 Exchanges.

In addition, effective January 1, 2017, the Company adopted ASU No. 2016-09 (“ASU 2016-09”) which simplified several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The adoption of this guidance did not have an impact on our consolidated financial statements or notes to our consolidated financial statements.

Recently Issued Accounting Pronouncements

ASU No. 2016-02 “Leases (Topic 842)”

On February 25, 2016, the FASB issued ASU No. 2016-02 (“ASU 2016-02”) to amend the accounting guidance for leases. The accounting applied by a lessor is largely unchanged under ASU 2016-02. However, the standard requires lessees to recognize lease assets and lease liabilities for leases classified as operating leases on the balance sheet. Lessees will recognize in the statement of financial position a liability to make lease payments and a right-of-use asset representing its right to use the underlying asset for the lease term. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it will recognize lease expense for such leases generally on a straight-line basis over the lease term. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018 and early adoption is permitted.

We are currently conducting our evaluation of the impact of the guidance on our consolidated financial statements and have an active project team working on the evaluation and implementation of the guidance. We currently believe that the adoption of the standard will not significantly change the accounting for operating leases on our consolidated balance sheets where we are the lessor, and that such leases will be accounted for in a similar method to existing standards with the underlying leased asset being reported and recognized as a real estate asset. We currently expect that certain non-lease components will need to be accounted for separately from the lease components, with the lease components continuing to be recognized on a straight-line basis over the term of the lease and certain non-lease components (such as common area maintenance) being accounted for under the new revenue recognition guidance in ASU 2014-09 discussed below, even when revenue for such non-lease components is not separately stipulated in the lease. In addition, under ASU 2016-02, lessors will only be permitted to capitalize and amortize incremental direct leasing costs. As a result, we expect that upon the adoption of the standard, we will no longer be able to capitalize and amortize certain leasing related costs and instead will expense these costs as incurred. We currently expect this could have a material impact to the Company’s results of operations upon adoption of the standard.

For leases where we are the lessee, specifically for our ground leases, we currently believe that the adoption of the standard will significantly change the accounting on our consolidated balance sheets since both existing ground leases and any future ground leases will be required to be recorded on the Company’s consolidated balance sheets as an obligation of the Company. We currently believe that existing ground leases executed before the January 1, 2019 adoption date will continue to be accounted for as operating leases and will not have a material impact on our recognition of ground lease expense or our results of operations. However, we believe that we will be required to recognize a right of use asset and a lease liability on our consolidated balance sheets equal to the present value of the minimum lease payments required in accordance with each ground lease. As of September 30, 2017, our future undiscounted minimum rental payments under these leases totaled$252.8 million, with several of the leases containing provisions for rental payments to fluctuate based on fair market value and operating income measurements with expirations through 2093. In addition, we currently believe that for new ground leases entered into after the adoption date of the new standard, such leases could be required to be accounted for as a financing type lease, resulting in ground lease expense recorded using the effective interest method instead of on a straight-line basis over the term of the lease. This could have a significant impact on our results of operations if we enter into material new ground leases after the date of adoption since ground lease expense calculated using the effective interest method results in an increased amount of ground lease expense in the earlier years of a ground lease as compared to the current straight-line method.

We will adopt the guidance on a modified retrospective basis as required by ASU 2016-02. We are in the process of evaluating whether we will elect to apply the practical expedients identified in the standard but currently believe that we may do so.

ASU No. 2014-09 “Revenue From Contracts with Customers (Topic 606)”

In May 2014, the FASB issued ASU 2014-09 “Revenue From Contracts with Customers (Topic 606)” (“ASU 2014-09”). The objective of ASU 2014-09 is to establish a single comprehensive model for entities to use in accounting for revenue from contracts with customers and will supersede most of the existing revenue recognition guidance. On May 9, 2016 and December 21, 2016, the FASB issued ASU No. 2016-12 and ASU No. 2016-20, which provides practical expedients, technical corrections, and improvements for certain aspects of ASU No. 2014-09. Public business entities may elect to adopt the amendments as of the original effective date; however, adoption is required for annual reporting periods beginning after December 15, 2017.

We have compiled an inventory of the sources of revenue that will be impacted by ASU 2014-09. Specifically, we have evaluated the impact of the guidance on timing of gain recognition for dispositions and currently do not believe there will be a material impact to our consolidated financial statements given the simplicity of the Company’s historical disposition transactions. In addition, we currently believe that certain non-lease components of revenue from leases such as common area maintenance and certain types of parking revenue may be impacted by ASU 2014-09 when we adopt ASU 2016-02 on January 1, 2019. We are in the process of evaluating the impact on these non-lease revenue components and currently believe the impact will be limited to the income statement presentation of revenue and not the total amount of revenue recognized.

Other Recently Issued Pronouncements

On May 10, 2017, the FASB issued ASU No. 2017-09 “Compensation - Stock Compensation (Topic 718)” to clarify the scope of modification accounting. Under the guidance, an entity will not apply modification accounting to a share-based payment award if the award’s fair value, vesting conditions, and classification as an equity or liability instrument remain the same immediately before and after the change. The guidance is effective for annual periods beginning after December 15, 2017 and early adoption is permitted. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

On February 22, 2017, the FASB issued ASU No. 2017-05 “Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20)” (“ASU 2017-05”) to provide guidance and clarify the scope of the original guidance within Subtopic 610-20 “Gains and Losses from the Derecognition of Nonfinancial Assets” that was issued in connection with ASU 2014-09, which provided guidance for recognizing gains and losses from the transfer of nonfinancial assets in transactions with noncustomers. ASU 2017-05 additionally adds guidance pertaining to the partial sales of real estate and clarifies that nonfinancial assets within the scope of Accounting Standards Codification Subtopic 610-20 may include nonfinancial assets transferred within a legal entity to a counterparty. For example, a parent may transfer control of nonfinancial assets by transferring ownership interests in a consolidated subsidiary. ASU 2017-05 is effective for fiscal years beginning after December 15, 2017, with early application permitted for fiscal years beginning after December 15, 2016. We are currently evaluating the impact of ASU 2017-05 on our consolidated financial statements and currently do not anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

On August 26, 2016, the FASB issued ASU No. 2016-15 (“ASU 2016-15”) to provide guidance for areas where there is diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. ASU 2016-15 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

On June 16, 2016, the FASB issued ASU No. 2016-13 (“ASU 2016-13”) to amend 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.  ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

On January 5, 2016, the FASB issued ASU No. 2016-01 (“ASU 2016-01”) to amend the accounting guidance on the classification and measurement of financial instruments. The standard requires that all investments in equity securities, including other ownership interests, are carried at fair value through net income. This requirement does not apply to investments that qualify for equity method accounting or to those that result in consolidation of the investee or for which the entity has elected the predictability exception to fair value measurement. Additionally, the standard requires that the portion of the total fair value change caused by a change in instrument-specific credit risk for financial liabilities for which the fair value option has been elected would be recognized in other comprehensive income. Any accumulated amount remaining in other comprehensive income is reclassified to earnings when the liability is extinguished. ASU 2016-01 is effective for fiscal years beginning after December 15, 2017. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

XML

Dispositions

9 Months Ended

Sep. 30, 2017

Discontinued Operations and Disposal Groups [Abstract]

Dispositions

Dispositions

The following table summarizes the properties sold during the nine months ended September 30, 2017.

Location	Property Type	Month of Disposition	Number of Buildings	Rentable Square Feet	Sales Price (1) (in millions)
5717 Pacific Center Boulevard, San Diego, CA (2)	Office	January	1	67,995	$	12.1
Sorrento Mesa and Mission Valley Properties (3)	Office	September	10	675,143	174.5
Total Dispositions			11	743,138	$	186.6

________________________ 

(1) Represents gross sales price before the impact of broker commissions and closing costs.

(2) This property was classified as held for sale at December 31, 2016.

(3) The Sorrento Mesa and Mission Valley Properties includes the following properties: 10390, 10394, 10398, 10421, 10445 and 10455 Pacific Center Court, 2355, 2365, 2375 and 2385 Northside Drive and Pacific Corporate Center - Lot 8, a 5.0 acre undeveloped land parcel.

The total gain on the operating properties and land sold during the nine months ended September 30, 2017 was $39.5 million and $0.4 million, respectively. As of September 30, 2017, approximately $170.6 million of net proceeds related to the Sorrento Mesa and Mission Valley Properties disposition were temporarily being held at qualified intermediaries, at our direction, for the purpose of facilitating potential future Section 1031 Exchanges. The cash proceeds are included in restricted cash on our consolidated balance sheets as of September 30, 2017.

XML

Receivables

9 Months Ended

Sep. 30, 2017

Receivables [Abstract]

Receivables

Receivables

Current Receivables, net

Current receivables, net is primarily comprised of contractual rents and other lease-related obligations due from tenants. The balance consisted of the following as of September 30, 2017 and December 31, 2016:

	September 30, 2017			December 31, 2016
	(in thousands)
Current receivables	$	20,746		$	15,172
Allowance for uncollectible tenant receivables	(2,120		)	(1,712		)
Current receivables, net	$	18,626		$	13,460

Deferred Rent Receivables, net

Deferred rent receivables, net consisted of the following as of September 30, 2017 and December 31, 2016:

	September 30, 2017			December 31, 2016
	(in thousands)
Deferred rent receivables	$	241,929		$	220,501
Allowance for deferred rent receivables	(2,970		)	(1,524		)
Deferred rent receivables, net	$	238,959		$	218,977

XML

Prepaid Expenses and Other Assets, Net

9 Months Ended

Sep. 30, 2017

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, 2017 and December 31, 2016:

	September 30, 2017		December 31, 2016
	(in thousands)
Furniture, fixtures and other long-lived assets, net	$	39,889	$	40,395
Notes receivable (1)	19,838		19,439
Prepaid expenses & acquisition deposits	48,988		10,774
Total prepaid expenses and other assets, net	$	108,715	$	70,608

_______________

(1) Approximately $15.1 millionof our notes receivable are secured by real estate.

XML

Secured and Unsecured Debt of the Operating Partnership

9 Months Ended

Sep. 30, 2017

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

Unsecured Senior Notes - Private Placement

On February 17, 2017, the Operating Partnership issued the $175.0 million principal amount of its 3.35% Senior Notes, Series A, due February 17, 2027 (the “Series A Notes”), and the $75.0 million principal amount of its 3.45% Senior Notes, Series B, due February 17, 2029 (the “Series B Notes” and, together with the Series A Notes, the “Series A and B Notes”). The Series A and B Notes were issued pursuant to a delayed draw option under a Note Purchase Agreement entered into in connection with a private placement in September 2016. As of September 30, 2017, there was $175.0 million and $75.0 million issued and outstanding aggregate principal amount of Series A and B Notes, respectively. The Series A Notes mature on February 17, 2027, and the Series B Notes mature on February 17, 2029, unless earlier redeemed or prepaid pursuant to the terms of the Note Purchase Agreement. Interest on the Series A and B Notes is payable semi-annually in arrears on February 17 and August 17 of each year.

The Operating Partnership may, at its option and upon notice to the purchasers of the Series A and B Notes, prepay at any time all, or from time to time, any part of the Series A and B Notes then outstanding (in an amount not less than 5% of the aggregate principal amount of the Series A and B Notes 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 Series A and B Notes, the Company entered into an agreement whereby it guarantees the payment by the Operating Partnership of all amounts due with respect to the Series A and B Notes and the performance by the Operating Partnership of its obligations under the Note Purchase Agreement.

Unsecured Revolving Credit Facility and Term Loan Facility

In July 2017, the Operating Partnership amended and restated the terms of its unsecured revolving credit facility and unsecured term loan facility (together, the “Facility”). The amendment and restatement increased the size of the unsecured revolving credit facility from $600.0 million to $750.0 million, maintained the size of the unsecured term loan facility of $150.0 million, reduced the borrowing costs and extended the maturity date of the Facility to July 2022. The unsecured term loan facility features two six-month delayed draw options.

The following table summarizes the balance and terms of our unsecured revolving credit facility as of September 30, 2017 and December 31, 2016:

	September 30, 2017			December 31, 2016
	(in thousands)
Outstanding borrowings	$	60,000		$	—
Remaining borrowing capacity	690,000			600,000
Total borrowing capacity (1)	$	750,000		$	600,000
Interest rate (2)	2.24		%	1.82		%
Facility fee-annual rate (3)	0.200%
Maturity date	July 2022			July 2019

________________________

(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 an annual rate of LIBOR plus 1.000% and LIBOR plus 1.050% as of September 30, 2017 and December 31, 2016, respectively.

(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, 2017 and December 31, 2016, $6.3 millionand $3.3 million of unamortized deferred financing costs, respectively, remained to be amortized through the maturity date of our unsecured revolving credit facility, which are included in prepaid expenses and other assets, net on our consolidated balance sheets.

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 and to potentially repay long-term debt.

The following table summarizes the balance and terms of our unsecured term loan facility as of September 30, 2017 and December 31, 2016:

	September 30, 2017			December 31, 2016
	(in thousands)
Outstanding borrowings (1)	$	—		$	150,000
Remaining borrowing capacity	150,000			—
Total borrowing capacity (2)	$	150,000		$	150,000
Interest rate (3)	2.33		%	1.85		%
Undrawn facility fee-annual rate (4)	0.200		%	—		%
Maturity date	July 2022			July 2019

________________________

(1) In July 2017, the unsecured term loan facility was paid down and the Facility was amended to include two, six-month delayed draw options on the unsecured term loan facility. The Company may draw on the unsecured term loan facility through July 2018, at which time the outstanding balance will become the balance of the unsecured term loan facility and no additional draws may be made. However, if the Company does not draw at least $75.0 million by the end of first option term in January 2018, the total borrowing capacity under the Facility will be reduced by 50% of the unutilized borrowing capacity at that time. The Company intends to draw $75.0 million prior to the end of the first option term in January 2018.

(2) As of September 30, 2017 and December 31, 2016, $1.2 million and $0.7 million of unamortized deferred financing costs, respectively, remained to be amortized through the maturity date of our unsecured term loan facility.

(3) Our unsecured term loan facility interest rate was calculated based on an annual rate of LIBOR plus 1.100% and LIBOR plus 1.150% as of September 30, 2017 and December 31, 2016, respectively.

(4) In July 2017, the Facility was amended to include a facility fee on the remaining borrowing capacity of the unsecured term loan facility, which is paid on a monthly basis.

Additionally, as of December 31, 2016 the Operating Partnership had a $39.0 million unsecured term loan outstanding with an annual interest rate of LIBOR plus 1.150% that was to mature in July 2019. As of December 31, 2016, $0.2 million of unamortized deferred financing costs remained to be amortized through the maturity date of our unsecured term loan. Concurrently with the amendment of the Facility, the Operating Partnership repaid its $39.0 million unsecured term loan.

Debt Covenants and Restrictions

The unsecured revolving credit facility, the unsecured term loan facility, the unsecured term loan, the unsecured senior notes, the Series A and B Notes 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, 2017.

Debt Maturities

The following table summarizes the stated debt maturities and scheduled amortization payments of our issued and outstanding debt, excluding unamortized debt discounts, premiums and deferred financing costs, as of September 30, 2017:

Year	(in thousands)
Remaining 2017	$	1,545
2018	451,669
2019	76,309
2020	255,137
2021	5,342
Thereafter	1,659,023
Total (1)	$	2,449,025

________________________

(1) Includes gross principal balance of outstanding debt before the effect of the following at September 30, 2017: $10.9 million of unamortized deferred financing costs, $6.0 million of unamortized discounts for the unsecured senior notes and $3.0 million of unamortized premiums for the secured debt.

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, 2017 and 2016. 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,
	2017			2016			2017			2016
	(in thousands)
Gross interest expense	$	28,331		$	26,184		$	84,577		$	79,027
Capitalized interest and deferred financing costs	(12,180		)	(11,208		)	(33,101		)	(37,838		)
Interest expense	$	16,151		$	14,976		$	51,476		$	41,189

XML

Noncontrolling Interests on the Company's Consolidated Financial Statements

9 Months Ended

Sep. 30, 2017

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 97.9%, 97.5% and 97.2% common general partnership interest in the Operating Partnership as of September 30, 2017, December 31, 2016 and September 30, 2016, respectively. The remaining approximate 2.1%, 2.5% and 2.8% common limited partnership interest as of September 30, 2017, December 31, 2016 and September 30, 2016, respectively, was owned by non-affiliated investors and certain of our executive officers and directors in the form of noncontrolling common units. There were 2,077,193, 2,381,543 and 2,631,276common units outstanding held by these investors, executive officers and directors as of September 30, 2017, December 31, 2016 and September 30, 2016, 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 $145.6 million and $174.9 million as of September 30, 2017 and December 31, 2016, 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.

XML

Stockholders' Equity of the Company

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

Stockholders' Equity of the Company

Stockholders’ Equity of the Company

Preferred Stock Redemption

On August 15, 2017, the Company redeemed all 4,000,000 shares of its 6.375% Series H Cumulative Redeemable Preferred Stock (“Series H Preferred Stock”). The shares of Series H Preferred Stock were redeemed at a redemption price equal to their stated liquidation preference of $25.00 per share, representing $100.0 million in aggregate. The redemption payment did not include any additional accrued dividends because the redemption date was also the dividend payment date.

On March 30, 2017 (the “Series G Redemption Date”), the Company redeemed all 4,000,000 shares of its 6.875% Series G Cumulative Redeemable Preferred Stock (“Series G Preferred Stock”). The shares of Series G Preferred Stock were redeemed at a redemption price equal to their stated liquidation preference of $25.00 per share, representing $100.0 million in aggregate, plus all accrued and unpaid dividends to the Series G Redemption Date.

During the three and nine months ended September 30, 2017, we recognized non-recurring non-cash charges of $3.7 million and $7.6 million, respectively, as a reduction to net income available to common stockholders for the original issuance costs related to the Series G and Series H Preferred Stock.

Common Stock Issuance

In January 2017, the Company completed an underwritten public offering of 4,427,500 shares of its common stock. The net offering proceeds, after deducting underwriting discounts and offering expenses, were approximately $308.8 million. We used a portion of the proceeds to partially fund our 2016 special dividend and used the remaining proceeds for general corporate uses, to fund development expenditures and to repay outstanding indebtedness.

At-The-Market Stock Offering Program

Under our current at-the-market stock offering program, which commenced in December 2014, we may offer and sell shares of our common stock having an aggregate gross sales price of up to $300.0 million from time to time in “at-the-market” offerings. No shares of common stock were sold under this program during the nine months ended September 30, 2017. Since commencement of the program through September 30, 2017, we have sold 2,459,165 shares of common stock having an aggregate gross sales price of $182.4 million. As of September 30, 2017, shares of common stock having an aggregate gross sales price of up to $117.6 million remain available to be sold under this program. 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.

Payment of 2016 Special Cash Dividend

On January 13, 2017, the Company paid $184.3 million of special cash dividends, which was the equivalent of $1.90 of special cash dividend per share of common stock to stockholders of record on December 30, 2016. This special dividend payment was in addition to the $36.4 million of regular dividends we also paid on January 13, 2017 to common stockholders, unitholders and RSU holders of record on December 30, 2016.

XML

Partners' Capital of the Operating Partnership

9 Months Ended

Sep. 30, 2017

Partners' Capital Notes [Abstract]

Partners’ Capital of the Operating Partnership

Partners’ Capital of the Operating Partnership

Preferred Stock Redemption

On August 15, 2017, the Company redeemed all 4,000,000 shares of its 6.375% Series H Preferred Stock. For each share of Series H Preferred Stock that was outstanding, the Company had an equivalent number of 6.375% Series H Preferred Units (“Series H Preferred Units”) outstanding with substantially similar terms as the Series H Preferred Stock. In connection with the redemption of the Series H Preferred Stock, the Series H Preferred Units held by the Company were redeemed by the Operating Partnership.

On March 30, 2017, the Company redeemed all 4,000,000 shares of its 6.875% Series G Preferred Stock. For each share of Series G Preferred Stock that was outstanding, the Company had an equivalent number of 6.875% Series G Preferred Units (“Series G Preferred Units”) outstanding with substantially similar terms as the Series G Preferred Stock. In connection with the redemption of the Series G Preferred Stock, the Series G Preferred Units held by the Company were redeemed by the Operating Partnership.

Issuance of Common Units

In January 2017, the Company completed an underwritten public offering of 4,427,500 shares of its common stock as discussed in Note 7. The net offering proceeds of approximately $308.8 million were contributed by the Company to the Operating Partnership in exchange for 4,427,500 common units.

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, 2017		December 31, 2016		September 30, 2016
Company owned common units in the Operating Partnership	98,382,256		93,219,439		92,272,492
Company owned general partnership interest	97.9	%	97.5	%	97.2	%
Noncontrolling common units of the Operating Partnership	2,077,193		2,381,543		2,631,276
Ownership interest of noncontrolling interest	2.1	%	2.5	%	2.8	%

For further discussion of the noncontrolling common units as of September 30, 2017 and December 31, 2016, refer to Note 6.

XML

Share-Based Compensation

9 Months Ended

Sep. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-Based Compensation

Share-Based Compensation

Stockholder Approved Equity Compensation Plans

As of September 30, 2017, we maintained one share-based incentive compensation plan, the Kilroy Realty 2006 Incentive Award Plan, as amended (the “2006 Plan”). As of September 30, 2017, 2,004,127 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 target levels for the performance or market conditions (as defined below) for awards still in a performance period.

2017 Share-Based Compensation Grants

In February 2017, the Executive Compensation Committee of the Company’s Board of Directors awarded 229,976 restricted stock units (“RSUs”) to certain officers of the Company under the 2006 Plan, which included 130,956 RSUs (at the target level of performance), or 57%, that are subject to market and/or performance-based vesting requirements (the “2017 Performance-Based RSUs”) and 99,020 RSUs, or 43%, that are subject to time-based vesting requirements (the “2017 Time-Based RSUs”).

2017 Performance-Based RSU Grant

The 2017 Performance-Based RSUs are scheduled to vest at the end of a three-year period based upon the achievement of pre-set FFO per share goals for the year ending December 31, 2017 (the “FFO performance condition”) and also based upon either the average FAD per share growth or the Company’s average debt to EBITDA ratio (the “other performance conditions”) or the average annual relative total stockholder return ranking for the Company compared to an established comparison group of companies (the “market condition”) for the three-year period ending December 31, 2019. The 2017 Performance-Based RSUs are also subject to a three-year service vesting provision and are scheduled to cliff vest at the end of the three-year period. The number of 2017 Performance-Based RSUs ultimately earned could fluctuate from the target number of 2017 Performance-Based RSUs granted based upon the levels of achievement for the FFO performance condition, the other performance conditions and the market condition. The estimate of the number of 2017 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. As of September 30, 2017, the number of 2017 Performance-Based RSUs estimated to be earned based on the Company’s estimate of the performance conditions measured against the applicable goals was 130,956, and the compensation cost recorded to date for this program was based on that estimate. Compensation expense for the 2017 Performance-Based RSU grant will be recorded on a straight-line basis over the three-year period.

Each 2017 Performance-Based RSU represents the right, subject to the applicable vesting conditions, to receive one share of our common stock in the future. The total fair value of the 2017 Performance-Based RSU grant was $10.3 million at February 24, 2017. The determination of the fair value of the 2017 Performance-Based RSU grant with other performance conditions takes into consideration the likelihood of achievement of the FFO performance condition and the other performance conditions. The grant date fair value for the performance awards with a market condition was calculated using a Monte Carlo simulation pricing model based on the assumptions in the table below. For the portion of the 2017 Performance-Based RSUs subject to the market condition, for the nine months ended September 30, 2017, we recorded compensation expense based upon the $80.89 fair value at February 24, 2017. The following table summarizes the assumptions utilized in the Monte Carlo simulation pricing model:

	Fair Value Assumptions
Fair value per share at February 24, 2017	$80.89
Expected share price volatility	21.00%
Risk-free interest rate	1.39%
Remaining expected life	2.8 years

The computation of expected volatility is based on a blend of the historical volatility of our shares of common stock over approximately 5.6 years, as that is expected to be most consistent with future volatility and equates to a time period twice as long as the approximate 2.8-year remaining 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 February 24, 2017. The expected life of the RSUs is equal to the remaining 2.8 year vesting period as of February 24, 2017.

2017 Time-Based RSU Grant

The 2017 Time-Based RSUs are scheduled to vest in three equal installments beginning on January 5, 2018 through January 5, 2020. Compensation expense for the 2017 Time-Based RSUs will be recognized on a straight-line basis over the three-year service vesting period. Each 2017 Time-Based RSU represents the right to receive one share of our common stock in the future. The total fair value of the 2017 Time-Based RSU grant was $7.5 million, which was based on the $73.30 and $77.16 closing share prices of the Company’s common stock on the NYSE on the February 3, 2017 and February 24, 2017 grant dates, respectively.

Share-Based Award Activity

During the nine months ended September 30, 2017, 282,000 non-qualified stock options were exercised at an exercise price per share equal to $42.61. As of September 30, 2017, there were 29,500 stock options outstanding.

Share-Based Compensation Cost Recorded During the Period

The total compensation cost for all share-based compensation programs was $6.4 million and $6.8 million for the three months ended September 30, 2017 and 2016, respectively, and $19.0 million and $19.3 million for the nine months ended September 30, 2017 and 2016, respectively. Of the total share-based compensation costs, $1.7 million and $1.5 million was capitalized as part of real estate assets and deferred leasing costs for the three months ended September 30, 2017 and 2016, respectively, and $5.4 million and $4.0 million for the nine months ended September 30, 2017 and 2016, respectively. As of September 30, 2017, there was approximately $30.9 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 1.9 years. The remaining compensation cost related to these nonvested incentive awards had been recognized in periods prior to September 30, 2017.

XML

Commitments and Contingencies

9 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

General

As of September 30, 2017, we had commitments of approximately $755.0 million, excluding our ground lease commitments, for contracts and executed leases directly related to our operating properties and development projects.

Environmental Matters

We follow the policy of monitoring all of our properties, both acquisition 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, 2017, we had accrued environmental remediation liabilities of approximately $27.1 millionrecorded on our consolidated balance sheets in connection with certain of our future development projects. It is possible that we could incur additional environmental remediation costs in connection with these future development projects.  However, given we are in the pre-development phase on these future development projects, potential additional environmental costs are not reasonably estimable 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.

XML

Fair Value Measurements and Disclosures

9 Months Ended

Sep. 30, 2017

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, 2017 and December 31, 2016:

	Fair Value (Level 1) (1)
	September 30, 2017		December 31, 2016
Description	(in thousands)
Marketable securities (2)	$	18,851	$	14,773

________________________

(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 gains 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 for the period.

The following table sets forth the net gain on marketable securities recorded during the three and nine months ended September 30, 2017 and 2016:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Description	(in thousands)				(in thousands)
Net gain on marketable securities	$	536	$	481	$	1,719	$	867

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, 2017 and December 31, 2016:

	September 30, 2017				December 31, 2016
	Carrying Value		Fair Value (1)		Carrying Value		Fair Value (1)
	(in thousands)
Liabilities
Secured debt, net	$	465,828	$	467,968	$	472,772	$	469,234
Unsecured debt, net	1,909,381		1,983,737		1,847,351		1,900,487
Unsecured line of credit	60,000		60,087		—		—

________________________

(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.

XML

Net Income Available to Common Stockholders Per Share of the Company

9 Months Ended

Sep. 30, 2017

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, 2017 and 2016:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
	(in thousands, except share and per share amounts)
Numerator:
Net income attributable to Kilroy Realty Corporation	$	71,110		$	53,895		$	136,083		$	261,050
Total preferred dividends	(4,552		)	(3,313		)	(13,363		)	(9,938		)
Allocation to participating securities (1)	(501		)	(426		)	(1,460		)	(1,244		)
Numerator for basic and diluted net income available to common stockholders	$	66,057		$	50,156		$	121,260		$	249,868
Denominator:
Basic weighted average vested shares outstanding	98,352,139			92,227,016			98,008,780			92,220,522
Effect of dilutive securities	559,473			693,390			582,268			611,016
Diluted weighted average vested shares and common share equivalents outstanding	98,911,612			92,920,406			98,591,048			92,831,538
Basic earnings per share:
Net income available to common stockholders per share	$	0.67		$	0.54		$	1.24		$	2.71
Diluted earnings per share:
Net income available to common stockholders per share	$	0.67		$	0.54		$	1.23		$	2.69

________________________

(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, 2017 and 2016. Certain market measure-based RSUs are not included in dilutive securities for the three and nine months ended September 30, 2017 and 2016, as not all performance metrics had been met by the end of the applicable reporting periods.

See Note 9 “Share-Based Compensation” for additional information regarding share-based compensation.

XML

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

9 Months Ended

Sep. 30, 2017

Earnings Per Unit [Abstract]

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, 2017 and 2016:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
	(in thousands, except unit and per unit amounts)
Numerator:
Net income attributable to Kilroy Realty, L.P.	$	72,402		$	55,254		$	138,427		$	266,677
Total preferred distributions	(4,552		)	(3,313		)	(13,363		)	(9,938		)
Allocation to participating securities (1)	(501		)	(426		)	(1,460		)	(1,244		)
Numerator for basic and diluted net income available to common unitholders	$	67,349		$	51,515		$	123,604		$	255,495
Denominator:
Basic weighted average vested units outstanding	100,429,332			94,858,292			100,160,595			94,630,183
Effect of dilutive securities	559,473			693,390			582,268			611,016
Diluted weighted average vested units and common unit equivalents outstanding	100,988,805			95,551,682			100,742,863			95,241,199
Basic earnings per unit:
Net income available to common unitholders per unit	$	0.67		$	0.54		$	1.23		$	2.70
Diluted earnings per unit:
Net income available to common unitholders per unit	$	0.67		$	0.54		$	1.23		$	2.68

________________________

(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, 2017 and 2016. Certain market measure-based RSUs are not included in dilutive securities for the three and nine months ended September 30, 2017 and 2016, as not all performance metrics had been met by the end of the applicable reporting periods.

See Note 9 “Share-Based Compensation” for additional information regarding share-based compensation.

XML

Supplemental Cash Flow Information of the Company

9 Months Ended

Sep. 30, 2017

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information of the Company

Supplemental Cash Flow Information of the Company

Supplemental cash flow information is included as follows (in thousands):

	Nine Months Ended September 30,
	2017		2016
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $31,880 and $36,468 as of September 30, 2017 and 2016, respectively	$	46,878	$	42,858
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	104,409	$	77,161
Tenant improvements funded directly by tenants	$	10,361	$	16,803
Assumption of accrued liabilities in connection with acquisitions	$	—	$	4,911
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	43,324	$	36,109
Accrual of dividends and distributions payable to preferred stockholders and preferred unitholders	$	—	$	1,656
Exchange of common units of the Operating Partnership into shares of the Company’s common stock	$	10,939	$	39
Issuance of common units of the Operating Partnership in connection with an acquisition	$	—	$	48,033
Secured debt assumed by buyers in connection with land dispositions	$	—	$	2,322

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, 2017 and 2016.

	Nine Months Ended September 30,
	2017		2016
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	193,418	$	56,508
Restricted cash at beginning of period	56,711		696
Cash and cash equivalents and restricted cash at beginning of period	$	250,129	$	57,204
Cash and cash equivalents at end of period	$	64,954	$	250,523
Restricted cash at end of period	179,276		57,501
Cash and cash equivalents and restricted cash at end of period	$	244,230	$	308,024

XML

Supplemental Cash Flow Information of the Operating Partnership

9 Months Ended

Sep. 30, 2017

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 is included as follows (in thousands):

	Nine Months Ended September 30,
	2017		2016
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $31,880 and $36,468 as of September 30, 2017 and 2016, respectively	$	46,878	$	42,858
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	104,409	$	77,161
Tenant improvements funded directly by tenants	$	10,361	$	16,803
Assumption of accrued liabilities in connection with acquisitions	$	—	$	4,911
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	43,324	$	36,109
Accrual of dividends and distributions payable to preferred stockholders and preferred unitholders	$	—	$	1,656
Exchange of common units of the Operating Partnership into shares of the Company’s common stock	$	10,939	$	39
Issuance of common units of the Operating Partnership in connection with an acquisition	$	—	$	48,033
Secured debt assumed by buyers in connection with land dispositions	$	—	$	2,322

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, 2017 and 2016.

	Nine Months Ended September 30,
	2017		2016
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	193,418	$	56,508
Restricted cash at beginning of period	56,711		696
Cash and cash equivalents and restricted cash at beginning of period	$	250,129	$	57,204
Cash and cash equivalents at end of period	$	64,954	$	250,523
Restricted cash at end of period	179,276		57,501
Cash and cash equivalents and restricted cash at end of period	$	244,230	$	308,024

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 is included as follows (in thousands):

	Nine Months Ended September 30,
	2017		2016
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $31,880 and $36,468 as of September 30, 2017 and 2016, respectively	$	46,878	$	42,858
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	104,409	$	77,161
Tenant improvements funded directly by tenants	$	10,361	$	16,803
Assumption of accrued liabilities in connection with acquisitions	$	—	$	4,911
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	$	43,324	$	36,109
Accrual of distributions payable to preferred unitholders	$	—	$	1,656
Issuance of common units of the Operating Partnership in connection with an acquisition	$	—	$	48,033
Secured debt assumed by buyers in connection with land dispositions	$	—	$	2,322

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, 2017 and 2016.

	Nine Months Ended September 30,
	2017		2016
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	193,418	$	56,508
Restricted cash at beginning of period	56,711		696
Cash and cash equivalents and restricted cash at beginning of period	$	250,129	$	57,204
Cash and cash equivalents at end of period	$	64,954	$	250,523
Restricted cash at end of period	179,276		57,501
Cash and cash equivalents and restricted cash at end of period	$	244,230	$	308,024

XML

Subsequent Events

9 Months Ended

Sep. 30, 2017

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

On October 10, 2017, the Company completed the acquisition of a 1.2 acre development site located in the Little Italy neighborhood of downtown San Diego, California for $19.4 million in cash.

OnOctober 18, 2017, aggregate dividends, distributions and dividend equivalents of $43.3 millionwere paid to common stockholders, common unitholders and RSU holders of record on September 30, 2017.

XML

Organization and Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2017

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, the Finance Partnership, Kilroy Services, LLC (“KSLLC”), 100 First LLC, 303 Second 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, the Finance Partnership, KSLLC, 100 First LLC, 303 Second LLC, Redwood LLC and all wholly-owned and controlled subsidiaries of the Operating Partnership. 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, 2017. 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, 2016.

New accounting pronouncements

Adoption of New Accounting Pronouncements

Effective January 1, 2017, the Company adopted FASB ASU No. 2017-01 (“ASU 2017-01”) which clarifies the framework for determining whether an integrated set of assets and activities meets the definition of a business. The revised framework provides a screen for determining whether an integrated set of assets is a business combination or an asset acquisition and clarifies that when substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or a group of similar assets, the set of assets and activities is deemed not to meet the definition of a business. As a result of our adoption of the guidance, which we adopted on a prospective basis, the Company expects that most of our future acquisitions of operating properties and development properties that were previously accounted for as business combinations will instead be accounted for as asset acquisitions under the new guidance. In addition, we expect that most of the transaction costs associated with these future acquisitions will be capitalized as part of the purchase price of the acquisition instead of being expensed as incurred to acquisition-related expenses. The Company did not have any acquisitions of operating properties during the nine months ended September 30, 2017.

Also effective January 1, 2017, the Company adopted ASU No. 2016-18 (“ASU 2016-18”) which requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. The Company adopted ASU 2016-18 on a retrospective basis. Therefore, amounts generally described as restricted cash and restricted cash equivalents are included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the Company’s consolidated statements of cash flows for the nine months ended September 30, 2017 and 2016. As a result of the adoption of ASU 2016-18, the change in restricted cash is no longer presented as a separate line item within cash flows from investing activities on the Company’s consolidated statements of cash flows since such balances are now included in total cash at both the beginning and end of the reporting period. As a result, for the nine months ended September 30, 2016, the Company had net cash used in investing activities of $67.4 million instead of net cash used in investing activities of $124.2 million as previously reported since the Company had an increase in restricted cash of $56.8 million during the nine months ended September 30, 2016 primarily due to $48.4 million of restricted cash that was held at qualified intermediaries to facilitate potential future Section1031 Exchanges.

In addition, effective January 1, 2017, the Company adopted ASU No. 2016-09 (“ASU 2016-09”) which simplified several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The adoption of this guidance did not have an impact on our consolidated financial statements or notes to our consolidated financial statements.

Recently Issued Accounting Pronouncements

ASU No. 2016-02 “Leases (Topic 842)”

On February 25, 2016, the FASB issued ASU No. 2016-02 (“ASU 2016-02”) to amend the accounting guidance for leases. The accounting applied by a lessor is largely unchanged under ASU 2016-02. However, the standard requires lessees to recognize lease assets and lease liabilities for leases classified as operating leases on the balance sheet. Lessees will recognize in the statement of financial position a liability to make lease payments and a right-of-use asset representing its right to use the underlying asset for the lease term. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it will recognize lease expense for such leases generally on a straight-line basis over the lease term. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018 and early adoption is permitted.

We are currently conducting our evaluation of the impact of the guidance on our consolidated financial statements and have an active project team working on the evaluation and implementation of the guidance. We currently believe that the adoption of the standard will not significantly change the accounting for operating leases on our consolidated balance sheets where we are the lessor, and that such leases will be accounted for in a similar method to existing standards with the underlying leased asset being reported and recognized as a real estate asset. We currently expect that certain non-lease components will need to be accounted for separately from the lease components, with the lease components continuing to be recognized on a straight-line basis over the term of the lease and certain non-lease components (such as common area maintenance) being accounted for under the new revenue recognition guidance in ASU 2014-09 discussed below, even when revenue for such non-lease components is not separately stipulated in the lease. In addition, under ASU 2016-02, lessors will only be permitted to capitalize and amortize incremental direct leasing costs. As a result, we expect that upon the adoption of the standard, we will no longer be able to capitalize and amortize certain leasing related costs and instead will expense these costs as incurred. We currently expect this could have a material impact to the Company’s results of operations upon adoption of the standard.

For leases where we are the lessee, specifically for our ground leases, we currently believe that the adoption of the standard will significantly change the accounting on our consolidated balance sheets since both existing ground leases and any future ground leases will be required to be recorded on the Company’s consolidated balance sheets as an obligation of the Company. We currently believe that existing ground leases executed before the January 1, 2019 adoption date will continue to be accounted for as operating leases and will not have a material impact on our recognition of ground lease expense or our results of operations. However, we believe that we will be required to recognize a right of use asset and a lease liability on our consolidated balance sheets equal to the present value of the minimum lease payments required in accordance with each ground lease. As of September 30, 2017, our future undiscounted minimum rental payments under these leases totaled$252.8 million, with several of the leases containing provisions for rental payments to fluctuate based on fair market value and operating income measurements with expirations through 2093. In addition, we currently believe that for new ground leases entered into after the adoption date of the new standard, such leases could be required to be accounted for as a financing type lease, resulting in ground lease expense recorded using the effective interest method instead of on a straight-line basis over the term of the lease. This could have a significant impact on our results of operations if we enter into material new ground leases after the date of adoption since ground lease expense calculated using the effective interest method results in an increased amount of ground lease expense in the earlier years of a ground lease as compared to the current straight-line method.

We will adopt the guidance on a modified retrospective basis as required by ASU 2016-02. We are in the process of evaluating whether we will elect to apply the practical expedients identified in the standard but currently believe that we may do so.

ASU No. 2014-09 “Revenue From Contracts with Customers (Topic 606)”

In May 2014, the FASB issued ASU 2014-09 “Revenue From Contracts with Customers (Topic 606)” (“ASU 2014-09”). The objective of ASU 2014-09 is to establish a single comprehensive model for entities to use in accounting for revenue from contracts with customers and will supersede most of the existing revenue recognition guidance. On May 9, 2016 and December 21, 2016, the FASB issued ASU No. 2016-12 and ASU No. 2016-20, which provides practical expedients, technical corrections, and improvements for certain aspects of ASU No. 2014-09. Public business entities may elect to adopt the amendments as of the original effective date; however, adoption is required for annual reporting periods beginning after December 15, 2017.

We have compiled an inventory of the sources of revenue that will be impacted by ASU 2014-09. Specifically, we have evaluated the impact of the guidance on timing of gain recognition for dispositions and currently do not believe there will be a material impact to our consolidated financial statements given the simplicity of the Company’s historical disposition transactions. In addition, we currently believe that certain non-lease components of revenue from leases such as common area maintenance and certain types of parking revenue may be impacted by ASU 2014-09 when we adopt ASU 2016-02 on January 1, 2019. We are in the process of evaluating the impact on these non-lease revenue components and currently believe the impact will be limited to the income statement presentation of revenue and not the total amount of revenue recognized.

Other Recently Issued Pronouncements

On May 10, 2017, the FASB issued ASU No. 2017-09 “Compensation - Stock Compensation (Topic 718)” to clarify the scope of modification accounting. Under the guidance, an entity will not apply modification accounting to a share-based payment award if the award’s fair value, vesting conditions, and classification as an equity or liability instrument remain the same immediately before and after the change. The guidance is effective for annual periods beginning after December 15, 2017 and early adoption is permitted. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

On February 22, 2017, the FASB issued ASU No. 2017-05 “Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20)” (“ASU 2017-05”) to provide guidance and clarify the scope of the original guidance within Subtopic 610-20 “Gains and Losses from the Derecognition of Nonfinancial Assets” that was issued in connection with ASU 2014-09, which provided guidance for recognizing gains and losses from the transfer of nonfinancial assets in transactions with noncustomers. ASU 2017-05 additionally adds guidance pertaining to the partial sales of real estate and clarifies that nonfinancial assets within the scope of Accounting Standards Codification Subtopic 610-20 may include nonfinancial assets transferred within a legal entity to a counterparty. For example, a parent may transfer control of nonfinancial assets by transferring ownership interests in a consolidated subsidiary. ASU 2017-05 is effective for fiscal years beginning after December 15, 2017, with early application permitted for fiscal years beginning after December 15, 2016. We are currently evaluating the impact of ASU 2017-05 on our consolidated financial statements and currently do not anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

On August 26, 2016, the FASB issued ASU No. 2016-15 (“ASU 2016-15”) to provide guidance for areas where there is diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. ASU 2016-15 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

On June 16, 2016, the FASB issued ASU No. 2016-13 (“ASU 2016-13”) to amend 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.  ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

On January 5, 2016, the FASB issued ASU No. 2016-01 (“ASU 2016-01”) to amend the accounting guidance on the classification and measurement of financial instruments. The standard requires that all investments in equity securities, including other ownership interests, are carried at fair value through net income. This requirement does not apply to investments that qualify for equity method accounting or to those that result in consolidation of the investee or for which the entity has elected the predictability exception to fair value measurement. Additionally, the standard requires that the portion of the total fair value change caused by a change in instrument-specific credit risk for financial liabilities for which the fair value option has been elected would be recognized in other comprehensive income. Any accumulated amount remaining in other comprehensive income is reclassified to earnings when the liability is extinguished. ASU 2016-01 is effective for fiscal years beginning after December 15, 2017. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

XML

Organization and Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of real estate properties

As of September 30, 2017, the following properties were excluded from our stabilized portfolio. We did not have any redevelopment properties at September 30, 2017.

	Number of Properties/Projects	Estimated Rentable Square Feet (1)
Development projects under construction (2)	4	1,800,000

________________________

(1) Estimated rentable square feet upon completion.

(2) Development projects under construction also include 96,000 square feet of retail space and 237 residential units in addition to the estimated office rentable square feet noted above.

Our stabilized portfolio of operating properties was comprised of the following properties at September 30, 2017:

	Number of Buildings	Rentable Square Feet (unaudited)	Number of Tenants	Percentage  Occupied (unaudited)		Percentage Leased (unaudited)
Stabilized Office Properties	101	13,720,598	515	94.0	%	96.2	%

	Number of Buildings	Number of Units	Percentage  Occupied (unaudited)		Percentage Leased (unaudited)
Stabilized Residential Property	1	200	72.0	%	74.5	%

XML

Dispositions (Tables)

9 Months Ended

Sep. 30, 2017

Discontinued Operations and Disposal Groups [Abstract]

Schedule of dispositions and real estate assets held for sale

The following table summarizes the properties sold during the nine months ended September 30, 2017.

Location	Property Type	Month of Disposition	Number of Buildings	Rentable Square Feet	Sales Price (1) (in millions)
5717 Pacific Center Boulevard, San Diego, CA (2)	Office	January	1	67,995	$	12.1
Sorrento Mesa and Mission Valley Properties (3)	Office	September	10	675,143	174.5
Total Dispositions			11	743,138	$	186.6

________________________ 

(1) Represents gross sales price before the impact of broker commissions and closing costs.

(2) This property was classified as held for sale at December 31, 2016.

(3) The Sorrento Mesa and Mission Valley Properties includes the following properties: 10390, 10394, 10398, 10421, 10445 and 10455 Pacific Center Court, 2355, 2365, 2375 and 2385 Northside Drive and Pacific Corporate Center - Lot 8, a 5.0 acre undeveloped land parcel.

XML

Receivables (Tables)

9 Months Ended

Sep. 30, 2017

Receivables [Abstract]

Current Receivables, net

Current receivables, net is primarily comprised of contractual rents and other lease-related obligations due from tenants. The balance consisted of the following as of September 30, 2017 and December 31, 2016:

	September 30, 2017			December 31, 2016
	(in thousands)
Current receivables	$	20,746		$	15,172
Allowance for uncollectible tenant receivables	(2,120		)	(1,712		)
Current receivables, net	$	18,626		$	13,460

Deferred Rent Receivables, net

Deferred rent receivables, net consisted of the following as of September 30, 2017 and December 31, 2016:

	September 30, 2017			December 31, 2016
	(in thousands)
Deferred rent receivables	$	241,929		$	220,501
Allowance for deferred rent receivables	(2,970		)	(1,524		)
Deferred rent receivables, net	$	238,959		$	218,977

XML

Prepaid Expenses and Other Assets, Net (Tables)

9 Months Ended

Sep. 30, 2017

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, 2017 and December 31, 2016:

	September 30, 2017		December 31, 2016
	(in thousands)
Furniture, fixtures and other long-lived assets, net	$	39,889	$	40,395
Notes receivable (1)	19,838		19,439
Prepaid expenses & acquisition deposits	48,988		10,774
Total prepaid expenses and other assets, net	$	108,715	$	70,608

_______________

(1) Approximately $15.1 millionof our notes receivable are secured by real estate.

XML

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

9 Months Ended

Sep. 30, 2017

Debt Instrument [Line Items]

Unsecured revolving credit facility

The following table summarizes the balance and terms of our unsecured term loan facility as of September 30, 2017 and December 31, 2016:

	September 30, 2017			December 31, 2016
	(in thousands)
Outstanding borrowings (1)	$	—		$	150,000
Remaining borrowing capacity	150,000			—
Total borrowing capacity (2)	$	150,000		$	150,000
Interest rate (3)	2.33		%	1.85		%
Undrawn facility fee-annual rate (4)	0.200		%	—		%
Maturity date	July 2022			July 2019

________________________

(1) In July 2017, the unsecured term loan facility was paid down and the Facility was amended to include two, six-month delayed draw options on the unsecured term loan facility. The Company may draw on the unsecured term loan facility through July 2018, at which time the outstanding balance will become the balance of the unsecured term loan facility and no additional draws may be made. However, if the Company does not draw at least $75.0 million by the end of first option term in January 2018, the total borrowing capacity under the Facility will be reduced by 50% of the unutilized borrowing capacity at that time. The Company intends to draw $75.0 million prior to the end of the first option term in January 2018.

(2) As of September 30, 2017 and December 31, 2016, $1.2 million and $0.7 million of unamortized deferred financing costs, respectively, remained to be amortized through the maturity date of our unsecured term loan facility.

(3) Our unsecured term loan facility interest rate was calculated based on an annual rate of LIBOR plus 1.100% and LIBOR plus 1.150% as of September 30, 2017 and December 31, 2016, respectively.

The following table summarizes the balance and terms of our unsecured revolving credit facility as of September 30, 2017 and December 31, 2016:

	September 30, 2017			December 31, 2016
	(in thousands)
Outstanding borrowings	$	60,000		$	—
Remaining borrowing capacity	690,000			600,000
Total borrowing capacity (1)	$	750,000		$	600,000
Interest rate (2)	2.24		%	1.82		%
Facility fee-annual rate (3)	0.200%
Maturity date	July 2022			July 2019

________________________

(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 an annual rate of LIBOR plus 1.000% and LIBOR plus 1.050% as of September 30, 2017 and December 31, 2016, respectively.

(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, 2017 and December 31, 2016, $6.3 millionand $3.3 million of unamortized deferred financing costs, respectively, remained to be amortized through the maturity date of our unsecured revolving credit facility, which are included in prepaid expenses and other assets, net on our consolidated balance sheets.

Schedule of debt maturities

The following table summarizes the stated debt maturities and scheduled amortization payments of our issued and outstanding debt, excluding unamortized debt discounts, premiums and deferred financing costs, as of September 30, 2017:

Year	(in thousands)
Remaining 2017	$	1,545
2018	451,669
2019	76,309
2020	255,137
2021	5,342
Thereafter	1,659,023
Total (1)	$	2,449,025

________________________

(1) Includes gross principal balance of outstanding debt before the effect of the following at September 30, 2017: $10.9 million of unamortized deferred financing costs, $6.0 million of unamortized discounts for the unsecured senior notes and $3.0 million of unamortized premiums for the secured debt.

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, 2017 and 2016. 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,
	2017			2016			2017			2016
	(in thousands)
Gross interest expense	$	28,331		$	26,184		$	84,577		$	79,027
Capitalized interest and deferred financing costs	(12,180		)	(11,208		)	(33,101		)	(37,838		)
Interest expense	$	16,151		$	14,976		$	51,476		$	41,189

XML

Partners' Capital of the Operating Partnership (Tables)

9 Months Ended

Sep. 30, 2017

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, 2017		December 31, 2016		September 30, 2016
Company owned common units in the Operating Partnership	98,382,256		93,219,439		92,272,492
Company owned general partnership interest	97.9	%	97.5	%	97.2	%
Noncontrolling common units of the Operating Partnership	2,077,193		2,381,543		2,631,276
Ownership interest of noncontrolling interest	2.1	%	2.5	%	2.8	%

XML

Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

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

The following table summarizes the assumptions utilized in the Monte Carlo simulation pricing model:

	Fair Value Assumptions
Fair value per share at February 24, 2017	$80.89
Expected share price volatility	21.00%
Risk-free interest rate	1.39%
Remaining expected life	2.8 years

XML

Fair Value Measurements and Disclosures (Tables)

9 Months Ended

Sep. 30, 2017

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, 2017 and December 31, 2016:

	Fair Value (Level 1) (1)
	September 30, 2017		December 31, 2016
Description	(in thousands)
Marketable securities (2)	$	18,851	$	14,773

________________________

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

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

Fair value adjustment of marketable securities and deferred compensation plan liability

The following table sets forth the net gain on marketable securities recorded during the three and nine months ended September 30, 2017 and 2016:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Description	(in thousands)				(in thousands)
Net gain on marketable securities	$	536	$	481	$	1,719	$	867

Carrying value and fair value of company's remaining financial assets and liabilities

The following table sets forth the carrying value and the fair value of our other financial instruments as of September 30, 2017 and December 31, 2016:

	September 30, 2017				December 31, 2016
	Carrying Value		Fair Value (1)		Carrying Value		Fair Value (1)
	(in thousands)
Liabilities
Secured debt, net	$	465,828	$	467,968	$	472,772	$	469,234
Unsecured debt, net	1,909,381		1,983,737		1,847,351		1,900,487
Unsecured line of credit	60,000		60,087		—		—

________________________

(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.

XML

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

9 Months Ended

Sep. 30, 2017

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, 2017 and 2016:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
	(in thousands, except share and per share amounts)
Numerator:
Net income attributable to Kilroy Realty Corporation	$	71,110		$	53,895		$	136,083		$	261,050
Total preferred dividends	(4,552		)	(3,313		)	(13,363		)	(9,938		)
Allocation to participating securities (1)	(501		)	(426		)	(1,460		)	(1,244		)
Numerator for basic and diluted net income available to common stockholders	$	66,057		$	50,156		$	121,260		$	249,868
Denominator:
Basic weighted average vested shares outstanding	98,352,139			92,227,016			98,008,780			92,220,522
Effect of dilutive securities	559,473			693,390			582,268			611,016
Diluted weighted average vested shares and common share equivalents outstanding	98,911,612			92,920,406			98,591,048			92,831,538
Basic earnings per share:
Net income available to common stockholders per share	$	0.67		$	0.54		$	1.24		$	2.71
Diluted earnings per share:
Net income available to common stockholders per share	$	0.67		$	0.54		$	1.23		$	2.69

________________________

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

XML

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

9 Months Ended

Sep. 30, 2017

Net Income Available To Common Unitholders [Line Items]

Net income (loss) available to common unitholders

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, 2017 and 2016:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
	(in thousands, except share and per share amounts)
Numerator:
Net income attributable to Kilroy Realty Corporation	$	71,110		$	53,895		$	136,083		$	261,050
Total preferred dividends	(4,552		)	(3,313		)	(13,363		)	(9,938		)
Allocation to participating securities (1)	(501		)	(426		)	(1,460		)	(1,244		)
Numerator for basic and diluted net income available to common stockholders	$	66,057		$	50,156		$	121,260		$	249,868
Denominator:
Basic weighted average vested shares outstanding	98,352,139			92,227,016			98,008,780			92,220,522
Effect of dilutive securities	559,473			693,390			582,268			611,016
Diluted weighted average vested shares and common share equivalents outstanding	98,911,612			92,920,406			98,591,048			92,831,538
Basic earnings per share:
Net income available to common stockholders per share	$	0.67		$	0.54		$	1.24		$	2.71
Diluted earnings per share:
Net income available to common stockholders per share	$	0.67		$	0.54		$	1.23		$	2.69

________________________

(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 (loss) available to common unitholders

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, 2017 and 2016:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
	(in thousands, except unit and per unit amounts)
Numerator:
Net income attributable to Kilroy Realty, L.P.	$	72,402		$	55,254		$	138,427		$	266,677
Total preferred distributions	(4,552		)	(3,313		)	(13,363		)	(9,938		)
Allocation to participating securities (1)	(501		)	(426		)	(1,460		)	(1,244		)
Numerator for basic and diluted net income available to common unitholders	$	67,349		$	51,515		$	123,604		$	255,495
Denominator:
Basic weighted average vested units outstanding	100,429,332			94,858,292			100,160,595			94,630,183
Effect of dilutive securities	559,473			693,390			582,268			611,016
Diluted weighted average vested units and common unit equivalents outstanding	100,988,805			95,551,682			100,742,863			95,241,199
Basic earnings per unit:
Net income available to common unitholders per unit	$	0.67		$	0.54		$	1.23		$	2.70
Diluted earnings per unit:
Net income available to common unitholders per unit	$	0.67		$	0.54		$	1.23		$	2.68

________________________

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

XML

Supplemental Cash Flow Information of the Company (Tables)

9 Months Ended

Sep. 30, 2017

Supplemental Cash Flow Elements [Abstract]

Schedule of supplemental cash flows

Supplemental cash flow information is included as follows (in thousands):

	Nine Months Ended September 30,
	2017		2016
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $31,880 and $36,468 as of September 30, 2017 and 2016, respectively	$	46,878	$	42,858
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	104,409	$	77,161
Tenant improvements funded directly by tenants	$	10,361	$	16,803
Assumption of accrued liabilities in connection with acquisitions	$	—	$	4,911
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	43,324	$	36,109
Accrual of dividends and distributions payable to preferred stockholders and preferred unitholders	$	—	$	1,656
Exchange of common units of the Operating Partnership into shares of the Company’s common stock	$	10,939	$	39
Issuance of common units of the Operating Partnership in connection with an acquisition	$	—	$	48,033
Secured debt assumed by buyers in connection with land dispositions	$	—	$	2,322

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, 2017 and 2016.

	Nine Months Ended September 30,
	2017		2016
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	193,418	$	56,508
Restricted cash at beginning of period	56,711		696
Cash and cash equivalents and restricted cash at beginning of period	$	250,129	$	57,204
Cash and cash equivalents at end of period	$	64,954	$	250,523
Restricted cash at end of period	179,276		57,501
Cash and cash equivalents and restricted cash at end of period	$	244,230	$	308,024

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, 2017 and 2016.

	Nine Months Ended September 30,
	2017		2016
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	193,418	$	56,508
Restricted cash at beginning of period	56,711		696
Cash and cash equivalents and restricted cash at beginning of period	$	250,129	$	57,204
Cash and cash equivalents at end of period	$	64,954	$	250,523
Restricted cash at end of period	179,276		57,501
Cash and cash equivalents and restricted cash at end of period	$	244,230	$	308,024

XML

Supplemental Cash Flow Information of the Operating Partnership (Tables)

9 Months Ended

Sep. 30, 2017

Other Significant Noncash Transactions [Line Items]

Schedule of supplemental cash flows

Supplemental cash flow information is included as follows (in thousands):

	Nine Months Ended September 30,
	2017		2016
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $31,880 and $36,468 as of September 30, 2017 and 2016, respectively	$	46,878	$	42,858
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	104,409	$	77,161
Tenant improvements funded directly by tenants	$	10,361	$	16,803
Assumption of accrued liabilities in connection with acquisitions	$	—	$	4,911
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	43,324	$	36,109
Accrual of dividends and distributions payable to preferred stockholders and preferred unitholders	$	—	$	1,656
Exchange of common units of the Operating Partnership into shares of the Company’s common stock	$	10,939	$	39
Issuance of common units of the Operating Partnership in connection with an acquisition	$	—	$	48,033
Secured debt assumed by buyers in connection with land dispositions	$	—	$	2,322

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, 2017 and 2016.

	Nine Months Ended September 30,
	2017		2016
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	193,418	$	56,508
Restricted cash at beginning of period	56,711		696
Cash and cash equivalents and restricted cash at beginning of period	$	250,129	$	57,204
Cash and cash equivalents at end of period	$	64,954	$	250,523
Restricted cash at end of period	179,276		57,501
Cash and cash equivalents and restricted cash at end of period	$	244,230	$	308,024

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, 2017 and 2016.

	Nine Months Ended September 30,
	2017		2016
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	193,418	$	56,508
Restricted cash at beginning of period	56,711		696
Cash and cash equivalents and restricted cash at beginning of period	$	250,129	$	57,204
Cash and cash equivalents at end of period	$	64,954	$	250,523
Restricted cash at end of period	179,276		57,501
Cash and cash equivalents and restricted cash at end of period	$	244,230	$	308,024

Kilroy Realty, L.P. [Member]

Other Significant Noncash Transactions [Line Items]

Schedule of supplemental cash flows

Supplemental cash flow information is included as follows (in thousands):

	Nine Months Ended September 30,
	2017		2016
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $31,880 and $36,468 as of September 30, 2017 and 2016, respectively	$	46,878	$	42,858
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	$	104,409	$	77,161
Tenant improvements funded directly by tenants	$	10,361	$	16,803
Assumption of accrued liabilities in connection with acquisitions	$	—	$	4,911
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	$	43,324	$	36,109
Accrual of distributions payable to preferred unitholders	$	—	$	1,656
Issuance of common units of the Operating Partnership in connection with an acquisition	$	—	$	48,033
Secured debt assumed by buyers in connection with land dispositions	$	—	$	2,322

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, 2017 and 2016.

	Nine Months Ended September 30,
	2017		2016
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	193,418	$	56,508
Restricted cash at beginning of period	56,711		696
Cash and cash equivalents and restricted cash at beginning of period	$	250,129	$	57,204
Cash and cash equivalents at end of period	$	64,954	$	250,523
Restricted cash at end of period	179,276		57,501
Cash and cash equivalents and restricted cash at end of period	$	244,230	$	308,024

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, 2017 and 2016.

	Nine Months Ended September 30,
	2017		2016
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	193,418	$	56,508
Restricted cash at beginning of period	56,711		696
Cash and cash equivalents and restricted cash at beginning of period	$	250,129	$	57,204
Cash and cash equivalents at end of period	$	64,954	$	250,523
Restricted cash at end of period	179,276		57,501
Cash and cash equivalents and restricted cash at end of period	$	244,230	$	308,024

XML

Organization and Basis of Presentation (Details) - Sep. 30, 2017	Total	ft²	tenant	number_of_residential_units	building	project	property_units	property
Stabilized office properties [Member]
Real Estate Properties [Line Items]
Number of Buildings					101			4
Rentable Square Feet (unaudited)		13,720,598
Number of Tenants | tenant			515
Percentage Occupied (unaudited)	94.00%
Percentage Leased (unaudited)	96.20%
Stabilized residential properties [Member]
Real Estate Properties [Line Items]
Number of Buildings | building					1
Percentage Occupied (unaudited)	72.00%
Percentage Leased (unaudited)	74.50%
Number of Units | property_units							200
Development projects under construction [Member]
Real Estate Properties [Line Items]
Number of Buildings | project						4
Rentable Square Feet (unaudited)		1,800,000
Number of residential units | number_of_residential_units				237
Retail site [Member] | Development projects under construction [Member]
Real Estate Properties [Line Items]
Rentable Square Feet (unaudited)		96,000

XML

Organization and Basis of Presentation (Details Textual) $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2017 property_partnership	Sep. 30, 2017 ft²	Sep. 30, 2017 building	Sep. 30, 2017 project	Sep. 30, 2017 VIE	Sep. 30, 2017 a	Sep. 30, 2017 property	Dec. 31, 2016 USD ($) VIE
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Lease-up properties occupancy percentage	95.00%
Common general partnership interest in the Operating Partnership	97.90%	97.20%									97.50%
Common limited partnership interest in the Operating Partnership	2.10%	2.80%									2.50%
Number of VIEs | VIE								2			3
VIE assets			$ 429,400								$ 654,300
VIE liabilities			151,400								166,100
Noncontrolling interest in VIE			128,106								130,732
Net cash (used in) provided by investing activities	$ (180,712)	$ (67,402)
Increase in restricted cash	$ 56,800
Restricted cash		48,400
Ground leases, future minimum payments receivable			252,800
101 First LLC and 303 Second LLC [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Common general partnership interest in the Operating Partnership	56.00%
Noncontrolling interest in VIE			121,800								124,300
Kilroy Realty Finance, Inc. [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Common general partnership interest in the Finance Partnership (percentage)	1.00%
Kilroy Realty, L.P. [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Percentage of limited partnership interest owned by Operating Partnership	99.00%
Net cash (used in) provided by investing activities	$ (180,712)	$ (67,402)
Redwood LLC [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Common general partnership interest in the Operating Partnership	93.00%
Office properties [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Rentable Square Feet (unaudited) | ft²					13,720,598
Number of Buildings						101				4
Area of land | a									47
Office properties [Member] | Washington [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of Buildings | property										12
Development properties [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Rentable Square Feet (unaudited) | ft²					1,800,000
Number of Buildings | project							4
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 (unaudited) | ft²					365,359
Development sites [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of Buildings | project							5
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%
Real estate investment [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
VIE assets			$ 383,700								$ 588,600
Scenario, Previously Reported [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Net cash (used in) provided by investing activities	$ 124,200

XML

Dispositions (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) ft² a property	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) ft² a property	Sep. 30, 2016 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gains on sales of depreciable operating properties	$ 37,250	$ 18,312	$ 39,507	$ 164,302
5717 Pacific Center Boulevard, San Diego, CA [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Buildings | property	1		1
Rentable Square Feet | ft²	67,995		67,995
Sales Price (1) (in millions)			$ 12,100
Sorrento Mesa and Mission Valley Properties [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Buildings | property	10		10
Rentable Square Feet | ft²	675,143		675,143
Sales Price (1) (in millions)			$ 174,500
5717 Pacific Center Boulevard, San Diego, CA, and Sorrento Mesa and Mission Valley Portfolio [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Buildings | property	11		11
Rentable Square Feet | ft²	743,138		743,138
Sales Price (1) (in millions)			$ 186,600
5717 Pacific Center Boulevard, San Diego, CA, and Sorrento Mesa and Mission Valley Portfolio [Member] | Restricted Cash [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gains on sales of depreciable operating properties			170,600
5717 Pacific Center Boulevard, San Diego, CA, and Sorrento Mesa and Mission Valley Portfolio [Member] | Operating Properties [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gains on sales of depreciable operating properties			39,500
5717 Pacific Center Boulevard, San Diego, CA, and Sorrento Mesa and Mission Valley Portfolio [Member] | Land [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gains on sales of depreciable operating properties			$ 400
5975 Pacific Mesa Court [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of land | a	5.0		5.0

XML

Receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current Receivables, net
Current receivables	$ 20,746	$ 15,172
Allowance for uncollectible tenant receivables	(2,120)	(1,712)
Current receivables, net	18,626	13,460
Deferred Rent Receivables, net
Deferred rent receivables	241,929	220,501
Allowance for deferred rent receivables	(2,970)	(1,524)
Deferred rent receivables, net	$ 238,959	$ 218,977

XML

Prepaid Expenses and Other Assets, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Furniture, fixtures and other long-lived assets, net	$ 39,889	$ 40,395
Notes receivable (1)	19,838	19,439
Prepaid expenses & acquisition deposits	48,988	10,774
Total prepaid expenses and other assets, net	108,715	$ 70,608
Secured debt [Member]
Debt Instrument [Line Items]
Notes receivable (1)	$ 15,100

XML

Secured and Unsecured Debt of the Operating Partnership - Unsecured Senior Notes - Private Placement (Details) - Kilroy Realty, L.P. [Member] - USD ($)	9 Months Ended
	Sep. 30, 2017	Feb. 17, 2017
Debt Instrument [Line Items]
Long-term debt, gross	$ 2,449,025,000
Unsecured Debt [Member] | Three point three five percent Series A Unsecured Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt, gross	175,000,000	$ 175,000,000
Stated coupon rate		3.35%
Unsecured Debt [Member] | Three point four five percent Series B Unsecured Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt, gross	$ 75,000,000	$ 75,000,000
Stated coupon rate		3.45%
Unsecured Debt [Member] | Series A and B Unsecured Senior Notes [Member]
Debt Instrument [Line Items]
Operating partnership, payment percent	5.00%
Operating partnership, total payment percentage	100.00%

XML

Secured and Unsecured Debt of the Operating Partnership - Unsecured Revolving Credit Facility and Term Loan Facility (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Unsecured debt, net (Notes 5 and 11)	$ 1,909,381,000	$ 1,847,351,000
Terms of the Credit Facility
Outstanding borrowings	60,000,000	0
Total borrowing capacity (1)		150,000,000
Kilroy Realty, L.P. [Member]
Debt Instrument [Line Items]
Unsecured debt, net (Notes 5 and 11)	1,909,381,000	1,847,351,000
Terms of the Credit Facility
Outstanding borrowings	60,000,000	0
Unamortized deferred financing costs	10,900,000
Kilroy Realty, L.P. [Member] | Revolving Credit Facility [Member]
Terms of the Credit Facility
Outstanding borrowings	60,000,000	0
Remaining borrowing capacity	690,000,000	600,000,000
Total borrowing capacity (1)	$ 750,000,000	$ 600,000,000
Interest rate (percent)	2.24%	1.82%
Facility fee-annual rate (percent)	0.20%	0.20%
Maturity date	Jul. 01, 2022	Jul. 01, 2019
Contingent additional borrowings	$ 600,000,000
Variable rate (percent)		1.05%
Unamortized deferred financing costs	$ 6,300,000	$ 3,300,000
London Interbank Offered Rate (LIBOR) [Member] | Kilroy Realty, L.P. [Member] | Revolving Credit Facility [Member]
Terms of the Credit Facility
Variable rate (percent)	1.00%	1.05%
London Interbank Offered Rate (LIBOR) [Member] | Kilroy Realty, L.P. [Member] | Line of Credit [Member]
Terms of the Credit Facility
Variable rate (percent)		1.10%
$150 Million Term Loan Facility [Member] | Kilroy Realty, L.P. [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Unsecured debt, net (Notes 5 and 11)	$ 0	$ 150,000,000
Terms of the Credit Facility
Remaining borrowing capacity	150,000,000	$ 0
Total borrowing capacity (1)	$ 150,000,000
Facility fee-annual rate (percent)	0.20%	0.00%
Maturity date	Jul. 01, 2022	Jul. 01, 2019
Unamortized deferred financing costs	$ 1,200,000	$ 700,000
$150 Million Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Kilroy Realty, L.P. [Member] | Line of Credit [Member]
Terms of the Credit Facility
Variable rate (percent)	1.15%

XML

Secured and Unsecured Debt of the Operating Partnership - Unsecured Term Loan Facility (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Unsecured debt, net	$ 1,909,381,000	$ 1,847,351,000
Total borrowing capacity		150,000,000
Kilroy Realty, L.P. [Member]
Debt Instrument [Line Items]
Unsecured debt, net	1,909,381,000	$ 1,847,351,000
Unamortized deferred financing costs	10,900,000
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Kilroy Realty, L.P. [Member]
Debt Instrument [Line Items]
Variable rate (percent)		1.10%
Line of Credit [Member] | $150 Million Term Loan Facility [Member] | Kilroy Realty, L.P. [Member]
Debt Instrument [Line Items]
Unsecured debt, net	0	$ 150,000,000
Remaining borrowing capacity	150,000,000	$ 0
Total borrowing capacity	$ 150,000,000
Debt instrument, interest rate, effective percentage	2.33%	1.85%
Facility fee-annual rate (percent)	0.20%	0.00%
Maturity date	Jul. 01, 2022	Jul. 01, 2019
Minimum credit facility draw	$ 75,000,000.0
Unutilized borrowing capacity, fee percentage	50.00%
Unamortized deferred financing costs	$ 1,200,000	$ 700,000
Line of Credit [Member] | $150 Million Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Kilroy Realty, L.P. [Member]
Debt Instrument [Line Items]
Variable rate (percent)	1.15%
Line of Credit [Member] | $39 Million Unsecured Term Loan Due July 2019 [Member] | Kilroy Realty, L.P. [Member]
Debt Instrument [Line Items]
Unsecured debt, net		39,000,000
Unamortized deferred financing costs		$ 200,000
Line of Credit [Member] | $39 Million Unsecured Term Loan Due July 2019 [Member] | London Interbank Offered Rate (LIBOR) [Member] | Kilroy Realty, L.P. [Member]
Debt Instrument [Line Items]
Variable rate (percent)		1.15%

XML

Secured and Unsecured Debt of the Operating Partnership - Debt Maturities (Details) - Kilroy Realty, L.P. [Member] $ in Thousands	Sep. 30, 2017 USD ($)
Stated debt maturities and scheduled amortization payments, excluding debt discounts
Remaining 2017	$ 1,545
2018	451,669
2019	76,309
2020	255,137
2021	5,342
Thereafter	1,659,023
Total debt	2,449,025
Unamortized debt issuance costs	(10,900)
Unsecured Senior Notes [Member]
Stated debt maturities and scheduled amortization payments, excluding debt discounts
Unamortized discount	(6,000)
Secured debt [Member]
Stated debt maturities and scheduled amortization payments, excluding debt discounts
Unamortized premium	$ 3,000

XML

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, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Capitalized Interest and Loan Fees [Line Items]
Interest expense	$ 16,151	$ 14,976	$ 51,476	$ 41,189
Kilroy Realty, L.P. [Member]
Capitalized Interest and Loan Fees [Line Items]
Gross interest expense	28,331	26,184	84,577	79,027
Capitalized interest and deferred financing costs	(12,180)	(11,208)	(33,101)	(37,838)
Interest expense	$ 16,151	$ 14,976	$ 51,476	$ 41,189

XML

Noncontrolling Interests on the Company's Consolidated Financial Statements - Common Units of the Operating Partnership (Details) - USD ($) $ / shares in Units, $ in Millions	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Noncontrolling Interest [Line Items]
Common general partnership interest in the Operating Partnership	97.90%	97.50%	97.20%
Common limited partnership interest in the Operating Partnership	2.10%	2.50%	2.80%
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Aggregate value upon redemption of outstanding noncontrolling common units	$ 145.6	$ 174.9
Brannan St Project [Member]
Noncontrolling Interest [Line Items]
Common stock, par value (in dollars per share)	$ 0.01
Kilroy Realty, L.P. [Member] | Capital Units [Member]
Noncontrolling Interest [Line Items]
Common units outstanding held by common limited partners	2,077,193	2,381,543	2,631,276

XML

Stockholders' Equity of the Company (Details) - USD ($)					1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 15, 2017	Mar. 30, 2017	Jan. 13, 2017	Dec. 30, 2016	Jan. 31, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2014
Common Stock of the Company [Abstract]
Common stock, shares issued (in shares)					4,427,500	98,382,256		98,382,256		93,219,439
Net proceeds from issuance of common stock (Note 7)					$ 308,800,000			$ 308,812,000	$ 0
At the market stock offering aggregate gross sales price of common stock											$ 300,000,000
Payments of special cash dividends			$ 184,300,000
Dividends declared per common share (in dollars per share)				$ 1.90		$ 0.425	$ 0.375000	$ 1.225	$ 1.1
Payment of special dividend			$ 36,400,000					$ 297,993,000	$ 101,542,000
Series H Cumulative Redeemable Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, redeemed (in shares)	4,000,000					0		0		4,000,000
Preferred stock dividend rate percentage	6.375%	6.375%						0.00%		6.375%
Preferred stock, liquidation preference (in dollars per share)	$ 25.00
Preferred stock liquidation preference	$ 100,000,000					$ 0		$ 0		$ 100,000,000
Series G Cumulative Redeemable Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, redeemed (in shares)		4,000,000				0		0		4,000,000
Preferred stock dividend rate percentage		6.875%						0.00%		6.875%
Preferred stock, liquidation preference (in dollars per share)		$ 25.000
Preferred stock liquidation preference		$ 100,000,000				$ 0		$ 0		$ 100,000,000
Write off of issuance costs						$ (3,700,000)		$ (7,600,000)
Common Stock [Member] | Issuance of Equity - at the market offering [Member]
Common Stock of the Company [Abstract]
Common stock, shares issued (in shares)						2,459,165		2,459,165
At the market stock offering aggregate gross sales price of common stock						$ 182,400,000		$ 182,400,000
At the market stock offering remaining amount available for issuance						$ 117,600,000		$ 117,600,000

XML

Partners' Capital of the Operating Partnership (Details) - USD ($) $ in Thousands			1 Months Ended	9 Months Ended		12 Months Ended
	Aug. 15, 2017	Mar. 30, 2017	Jan. 31, 2017	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Class of Stock [Line Items]
Common stock, shares issued (in shares)			4,427,500	98,382,256		93,219,439
Net proceeds from issuance of common stock (Note 7)			$ 308,800	$ 308,812	$ 0
General Partners' Capital Account [Abstract]
Company owned general partnership interest				97.90%	97.20%	97.50%
Ownership interest of noncontrolling interest				2.10%	2.80%	2.50%
Series H Cumulative Redeemable Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, redeemed (in units)	4,000,000			0		4,000,000
Preferred stock dividend rate percentage	6.375%	6.375%		0.00%		6.375%
Series G Cumulative Redeemable Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, redeemed (in units)		4,000,000		0		4,000,000
Preferred stock dividend rate percentage		6.875%		0.00%		6.875%
Kilroy Realty, L.P. [Member] | Series G Cumulative Redeemable Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, redeemed (in units)		4,000,000
Preferred stock dividend rate percentage		6.875%
Kilroy Realty, L.P. [Member] | Capital Units [Member]
General Partners' Capital Account [Abstract]
Company owned common units in the Operating Partnership				98,382,256	92,272,492	93,219,439
Noncontrolling common units of the Operating Partnership				2,077,193	2,631,276	2,381,543

XML

Share-Based Compensation (Details Textual) $ / shares in Units, $ in Millions			1 Months Ended	3 Months Ended		9 Months Ended
	Feb. 24, 2017 USD ($) $ / shares	Jan. 28, 2016 shares	Feb. 28, 2017 USD ($) shares	Sep. 30, 2017 USD ($) plan $ / shares shares	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) plan $ / shares shares	Sep. 30, 2016 USD ($) shares	Feb. 03, 2017 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based incentive compensation plans | plan				1		1
Share-based compensation expense | $				$ 6.4	$ 6.8	$ 19.0	$ 19.3
Share-based compensation expense capitalized | $				1.7	$ 1.5	5.4	$ 4.0
Share-based compensation not yet recognized | $				$ 30.9		$ 30.9
Share-based compensation not yet recognized period of recognition						1 year 11 months
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		229,976
2017 Performance-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted			130,956
Percentage of shares granted			57.00%
Vesting period			3 years
Number of shares issuable per RSU		1
Grant date fair value | $	$ 10.3
Grant date fair value (in dollars per share) | $ / shares						$ 80.89
Remaining expected life, including future volatility						5 years 7 months
Remaining expected life						2 years 10 months
2017 Time-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted			99,020
Percentage of shares granted			43.00%
Vesting period			3 years
Closing share price (in dollars per share) | $ / shares	$ 77.16							$ 73.30
Kilroy Realty 2006 Incentive Award Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant				2,004,127		2,004,127
Market Measure-Based RSU Estimate of Probable [Member] | 2017 Performance-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, capital shares reserved for future issuance				130,956		130,956
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise of stock options (Note 9) (in shares)						282,000	51,000
Share-based compensation, exercise price (in dollars per share) | $ / shares				$ 42.61		$ 42.61
Share-based compensation, stock options outstanding				29,500		29,500
Nonvested Restricted Stock Units R S U [Member] | 2017 Time-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value | $			$ 7.5

XML

Share-Based Compensation (Details) - 2017 Performance-Based RSUs [Member]	9 Months Ended
	Sep. 30, 2017 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value (in dollars per share)	$ 80.89
Expected share price volatility	21.00%
Risk-free interest rate	1.39%
Remaining expected life	2 years 10 months

XML

Commitments and Contingencies (Details) $ in Millions	Sep. 30, 2017 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Commitments	$ 755.0
Accrued environmental remediation liabilities	$ 27.1

XML

Fair Value Measurements and Disclosures (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Fair value adjustment of marketable securities and deferred compensation plan liability
Net gain on marketable securities	$ 536	$ 481	$ 1,719	$ 867
Fair Value (Level 1) [Member]
Assets and Liabilities Reported at Fair Value
Marketable securities	$ 18,851		$ 18,851		$ 14,773

XML

Fair Value Measurements and Disclosures (Details 1) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
Carrying Value [Member] | Secured debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt	$ 465,828	$ 472,772
Carrying Value [Member] | Unsecured Debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt	1,909,381	1,847,351
Carrying Value [Member] | Line of Credit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt	60,000		$ 0
Fair Value (Level 2) [Member] | Fair Value [Member] | Secured debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt	467,968	469,234
Fair Value (Level 2) [Member] | Fair Value [Member] | Unsecured Debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt	1,983,737	$ 1,900,487
Fair Value (Level 2) [Member] | Fair Value [Member] | Line of Credit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt	$ 60,087		$ 0

XML

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, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Numerator:
Net income attributable to Kilroy Realty Corporation	$ 71,110	$ 53,895	$ 136,083	$ 261,050
Total preferred dividends	(4,552)	(3,313)	(13,363)	(9,938)
Allocation to participating securities (1)	(501)	(426)	(1,460)	(1,244)
Numerator for basic and diluted net income available to common stockholders	$ 66,057	$ 50,156	$ 121,260	$ 249,868
Denominator:
Weighted average common shares outstanding – basic (in shares) (Note 12)	98,352,139	92,227,016	98,008,780	92,220,522
Effect of dilutive securities (in shares)	559,473	693,390	582,268	611,016
Diluted weighted average vested shares and common share equivalents outstanding (in shares)	98,911,612	92,920,406	98,591,048	92,831,538
Basic earnings per share:
Net income available to common stockholders per share (in dollars per share)	$ 0.67	$ 0.54	$ 1.24	$ 2.71
Diluted earnings per share:
Net income available to common stockholders per share (in dollars per share)	$ 0.67	$ 0.54	$ 1.23	$ 2.69

XML

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, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Numerator:
Net income attributable to Kilroy Realty, L.P.	$ 71,110	$ 53,895	$ 136,083	$ 261,050
Total preferred dividends	(4,552)	(3,313)	(13,363)	(9,938)
Allocation to participating securities (1)	(501)	(426)	(1,460)	(1,244)
Numerator for basic and diluted net income available to common stockholders	$ 66,057	$ 50,156	$ 121,260	$ 249,868
Denominator:
Weighted average common units outstanding - basic (in units) (Note 13)	98,352,139	92,227,016	98,008,780	92,220,522
Effect of dilutive securities (in units)	559,473	693,390	582,268	611,016
Diluted weighted average vested shares and common share equivalents outstanding (in shares)	98,911,612	92,920,406	98,591,048	92,831,538
Basic earnings per unit:
Net income available to common stockholders per share (in dollars per share)	$ 0.67	$ 0.54	$ 1.24	$ 2.71
Diluted earnings per unit:
Net income available to common stockholders per share (in dollars per share)	$ 0.67	$ 0.54	$ 1.23	$ 2.69
Kilroy Realty, L.P. [Member]
Numerator:
Net income attributable to Kilroy Realty, L.P.	$ 72,402	$ 55,254	$ 138,427	$ 266,677
Total preferred dividends	(4,552)	(3,313)	(13,363)	(9,938)
Allocation to participating securities (1)	(501)	(426)	(1,460)	(1,244)
Numerator for basic and diluted net income available to common stockholders	$ 67,349	$ 51,515	$ 123,604	$ 255,495
Denominator:
Weighted average common units outstanding - basic (in units) (Note 13)	100,429,332	94,858,292	100,160,595	94,630,183
Effect of dilutive securities (in units)	559,473	693,390	582,268	611,016
Diluted weighted average vested shares and common share equivalents outstanding (in shares)	100,988,805	95,551,682	100,742,863	95,241,199
Basic earnings per unit:
Net income available to common stockholders per share (in dollars per share)	$ 0.67	$ 0.54	$ 1.23	$ 2.70
Diluted earnings per unit:
Net income available to common stockholders per share (in dollars per share)	$ 0.67	$ 0.54	$ 1.23	$ 2.68

XML

Supplemental Cash Flow Information of the Company (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $31,880 and $36,468 as of September 30, 2017 and 2016, respectively	$ 46,878	$ 42,858
Interest capitalized	31,880	36,468
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	104,409	77,161
Tenant improvements funded directly by tenants	10,361	16,803
Assumption of accrued liabilities in connection with acquisitions	0	4,911
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	43,324	36,109
Accrual of dividends and distributions payable to preferred stockholders and preferred unitholders	0	1,656
Exchange of common units of the Operating Partnership into shares of the Company’s common stock	10,939	39
Issuance of common units of the Operating Partnership in connection with an acquisition	0	48,033
Secured debt assumed by buyers in connection with land dispositions	$ 0	$ 2,322

XML

Supplemental Cash Flow Information of the Company - Reconciliation of cash and cash equivalents and restricted cash (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Supplemental Cash Flow Elements [Abstract]
Cash and cash equivalents at beginning of period	$ 193,418	$ 250,523	$ 56,508
Restricted cash at beginning of period	56,711	57,501	696
Cash and cash equivalents and restricted cash, beginning of period	250,129	308,024	57,204
Cash and cash equivalents at end of period	64,954	193,418	250,523
Restricted cash at end of period	179,276	56,711	57,501
Cash and cash equivalents and restricted cash, end of period	$ 244,230	$ 250,129	$ 308,024

XML

Supplemental Cash Flow Information of the Operating Partnership (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $31,880 and $36,468 as of September 30, 2017 and 2016, respectively	$ 46,878	$ 42,858
Interest capitalized	31,880	36,468
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	104,409	77,161
Tenant improvements funded directly by tenants	10,361	16,803
Assumption of accrued liabilities in connection with acquisitions	0	4,911
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	43,324	36,109
Accrual of distributions payable to preferred unitholders	0	1,656
Issuance of common units of the Operating Partnership in connection with an acquisition	0	48,033
Secured debt assumed by buyers in connection with land dispositions	0	2,322
Kilroy Realty, L.P. [Member]
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $31,880 and $36,468 as of September 30, 2017 and 2016, respectively	46,878	42,858
Interest capitalized	31,880	36,468
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development properties	104,409	77,161
Tenant improvements funded directly by tenants	10,361	16,803
Assumption of accrued liabilities in connection with acquisitions	0	4,911
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	43,324	36,109
Accrual of distributions payable to preferred unitholders	0	1,656
Issuance of common units of the Operating Partnership in connection with an acquisition	0	48,033
Secured debt assumed by buyers in connection with land dispositions	$ 0	$ 2,322

XML

Supplemental Cash Flow Information of the Operating Partnership - Reconciliation of cash and cash equivalents and restricted cash (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Other Significant Noncash Transactions [Line Items]
Cash and cash equivalents at beginning of period	$ 193,418	$ 250,523	$ 56,508
Restricted cash at beginning of period	56,711	57,501	696
Cash and cash equivalents and restricted cash, beginning of period	250,129	308,024	57,204
Cash and cash equivalents at end of period	64,954	193,418	250,523
Restricted cash at end of period	179,276	56,711	57,501
Cash and cash equivalents and restricted cash, end of period	244,230	250,129	308,024
Kilroy Realty, L.P. [Member]
Other Significant Noncash Transactions [Line Items]
Cash and cash equivalents at beginning of period	193,418	250,523	56,508
Restricted cash at beginning of period	56,711	57,501	696
Cash and cash equivalents and restricted cash, beginning of period	250,129	308,024	57,204
Cash and cash equivalents at end of period	64,954	193,418	250,523
Restricted cash at end of period	179,276	56,711	57,501
Cash and cash equivalents and restricted cash, end of period	$ 244,230	$ 250,129	$ 308,024

XML

Subsequent Events (Details) $ in Thousands				9 Months Ended
	Oct. 18, 2017 USD ($)	Oct. 10, 2017 USD ($) a	Jan. 13, 2017 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)
Subsequent Event [Line Items]
Payment of special dividend			$ 36,400	$ 297,993	$ 101,542
Subsequent Event [Member]
Subsequent Event [Line Items]
Payment of special dividend	$ 43,300
Subsequent Event [Member] | Little Italy, Sand Diego, California [Member]
Subsequent Event [Line Items]
Area of land | a		1.2
Cash payment		$ 19,400