10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 FORM 10-Q

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

For the quarterly period ended March 31, 2023

OR

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

For the transition period from ______ to ______

Commission file number: 1-12672

AVALONBAY COMMUNITIES, INC.

(Exact name of registrant as specified in its charter)

Maryland	77-0404318
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

4040 Wilson Blvd., Suite 1000

Arlington, Virginia 22203

(Address of principal executive offices) (Zip Code)

(703) 329-6300

(Registrant's telephone number, including area code)

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

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)		Name of each exchange on which registered
Common Stock, par value $0.01 per share		AVB	New York Stock Exchange

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.

Yes ☒                    No ☐

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

Yes ☒                    No ☐

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

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

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

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

Yes ☐                    No ☒

Indicate the number of shares outstanding of each of the issuer's classes of common stock as of the latest practicable date:

141,999,068 shares of common stock, par value $0.01 per share, were outstanding as of April 28, 2023.

AVALONBAY COMMUNITIES, INC.

FORM 10-Q

INDEX

		PAGE
PART I - FINANCIAL INFORMATION
ITEM 1.	CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
	CONDENSED CONSOLIDATED BALANCE SHEETS AS OF MARCH 31, 2023 (UNAUDITED) AND DECEMBER 31, 2022	1
	CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) FOR THE THREE MONTHS ENDED MARCH 31, 2023 AND 2022	2
	CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) FOR THE THREE MONTHS ENDED MARCH 31, 2023 AND 2022	3
	NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)	5
ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS		22
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK		44
ITEM 4. CONTROLS AND PROCEDURES		44
PART II - OTHER INFORMATION
ITEM 1. LEGAL PROCEEDINGS		44
ITEM 1A. RISK FACTORS		44
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS		45
ITEM 3. DEFAULTS UPON SENIOR SECURITIES		45
ITEM 4. MINE SAFETY DISCLOSURES		45
ITEM 5. OTHER INFORMATION		45
ITEM 6. EXHIBITS		46
SIGNATURES		47

AVALONBAY COMMUNITIES, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Dollars in thousands, except per share data)

	March 31, 2023		December 31, 2022
	(unaudited)
ASSETS
Real estate:
Land and improvements	$	4,645,240	$	4,640,971
Buildings and improvements	18,852,853		18,804,510
Furniture, fixtures and equipment	1,202,848		1,174,135
	24,700,941		24,619,616
Less accumulated depreciation	(7,058,327)		(6,878,556)
Net operating real estate	17,642,614		17,741,060
Construction in progress, including land	1,211,405		1,072,543
Land held for development	177,889		179,204
Real estate assets held for sale, net	11,832		—
Total real estate, net	19,043,740		18,992,807
Cash and cash equivalents	254,466		613,189
Cash in escrow	121,598		121,056
Resident security deposits	36,347		36,815
Unconsolidated investments	219,143		212,084
Deferred development costs	64,348		58,489
Prepaid expenses and other assets	296,995		279,993
Right of use lease assets	138,258		143,331
Total assets	$	20,174,895	$	20,457,764
LIABILITIES AND EQUITY
Unsecured notes, net	$	7,353,721	$	7,602,305
Variable rate unsecured credit facility and commercial paper	—		—
Mortgage notes payable, net	713,174		713,740
Dividends payable	233,375		226,022
Payables for construction	84,978		72,802
Accrued expenses and other liabilities	322,851		306,186
Lease liabilities	157,414		162,671
Accrued interest payable	73,295		54,100
Resident security deposits	64,097		63,700
Total liabilities	9,002,905		9,201,526
Commitments and contingencies
Redeemable noncontrolling interests	2,734		2,685
Equity:
Preferred stock, $0.01 par value; $25 liquidation preference; 50,000,000 shares authorized at March 31, 2023 and December 31, 2022; zero shares issued and outstanding at March 31, 2023 and December 31, 2022	—		—
Common stock, $0.01 par value; 280,000,000 shares authorized at March 31, 2023 and December 31, 2022; 140,002,856 and 139,916,864 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively	1,401		1,400
Additional paid-in capital	10,764,461		10,765,431
Accumulated earnings less dividends	401,879		485,221
Accumulated other comprehensive income (loss)	1,438		1,424
Total stockholders' equity	11,169,179		11,253,476
Noncontrolling interests	77		77
Total equity	11,169,256		11,253,553
Total liabilities and equity	$	20,174,895	$	20,457,764

See accompanying notes to Condensed Consolidated Financial Statements.

1

AVALONBAY COMMUNITIES, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(unaudited)

(Dollars in thousands, except per share data)

	For the three months ended March 31,
	2023		2022
Revenue:
Rental and other income	$	673,642	$	613,175
Management, development and other fees	1,066		752
Total revenue	674,708		613,927
Expenses:
Operating expenses, excluding property taxes	164,832		151,312
Property taxes	74,495		70,738
Expensed transaction, development and other pursuit costs, net of recoveries	2,992		987
Interest expense, net	56,821		56,526
Depreciation expense	204,743		201,786
General and administrative expense	20,400		17,421
Casualty loss	5,051		—
Total expenses	529,334		498,770
Income from unconsolidated investments	4,845		317
(Loss) gain on sale of communities	(13)		148,800
Other real estate activity	129		273
Income before income taxes	150,335		264,547
Income tax expense	(3,560)		(2,471)
Net income	146,775		262,076
Net loss (income) attributable to noncontrolling interests	127		(32)
Net income attributable to common stockholders	$	146,902	$	262,044
Other comprehensive income:
(Loss) gain on cash flow hedges	(340)		10,155
Cash flow hedge losses reclassified to earnings	354		1,013
Comprehensive income	$	146,916	$	273,212
Earnings per common share - basic:
Net income attributable to common stockholders	$	1.05	$	1.87
Earnings per common share - diluted:
Net income attributable to common stockholders	$	1.05	$	1.87

See accompanying notes to Condensed Consolidated Financial Statements.

2

AVALONBAY COMMUNITIES, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited)

(Dollars in thousands)

	For the three months ended March 31,
	2023		2022
Cash flows from operating activities:
Net income	$	146,775	$	262,076
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	204,743		201,786
Amortization of deferred financing costs and debt discount	3,231		2,691
Amortization of stock-based compensation	7,921		6,970
Equity in (income) loss of, and return on, unconsolidated investments and noncontrolling interests, net of eliminations	(1,457)		913
Casualty loss	2,407		—
Abandonment of development pursuits	2,992		8
Cash flow hedge losses reclassified to earnings	354		1,013
Gain on sale of real estate assets	(318)		(149,839)
Decrease in resident security deposits, prepaid expenses and other assets	(1,439)		(1,233)
Increase in accrued expenses, other liabilities and accrued interest payable	30,909		19,295
Net cash provided by operating activities	396,118		343,680
Cash flows from investing activities:
Development/redevelopment of real estate assets including land acquisitions and deferred development costs	(229,361)		(232,038)
Acquisition of real estate assets	—		(95,426)
Capital expenditures - existing real estate assets	(31,281)		(29,472)
Capital expenditures - non-real estate assets	(3,201)		(2,472)
Increase in payables for construction	12,176		3,124
Proceeds from sale of real estate and for-sale condominiums, net of selling costs	3,964		267,736
Note receivable lending	(14,034)		—
Note receivable payments	—		1,946
Unconsolidated investments	(5,602)		(3,598)
Net cash used in investing activities	(267,339)		(90,200)
Cash flows from financing activities:
Issuance of common stock, net	135		459
Repurchase of common stock, net	(1,129)		—
Dividends paid	(223,465)		(223,063)
Repayments of mortgage notes payable, including prepayment penalties	(899)		(362)
Repayment of unsecured notes	(250,000)		(100,000)
Payment of deferred financing costs	(662)		(421)
Acquisition of/payments to noncontrolling interest	—		(16)
Payments related to tax withholding for share-based compensation	(10,310)		(16,353)
Distributions to DownREIT partnership unitholders	(12)		(12)
Distributions to joint venture and profit-sharing partners	(98)		(89)
Preferred interest obligation redemption and dividends	(520)		—
Net cash used in financing activities	(486,960)		(339,857)
Net decrease in cash, cash equivalents and cash in escrow	(358,181)		(86,377)
Cash, cash equivalents and cash in escrow, beginning of period	734,245		543,788
Cash, cash equivalents and cash in escrow, end of period	$	376,064	$	457,411
Cash paid during the period for interest, net of amount capitalized	$	33,814	$	36,290

See accompanying notes to Condensed Consolidated Financial Statements.

3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (continued)

The following table provides a reconciliation of cash, cash equivalents and cash in escrow reported in the Condensed Consolidated Statements of Cash Flows (dollars in thousands):

	March 31, 2023		March 31, 2022
Cash and cash equivalents	$	254,466	$	343,457
Cash in escrow	121,598		113,954
Cash, cash equivalents and cash in escrow reported in the Condensed Consolidated Statements of Cash Flows	$	376,064	$	457,411

Supplemental disclosures of non-cash investing and financing activities:

During the three months ended March 31, 2023:

•As described in Note 4, "Equity," the Company issued 151,053 shares of common stock as part of the Company's stock-based compensation plans, of which 60,016 shares related to the conversion of performance awards to shares of common stock, and the remaining 91,037 shares valued at $16,182,000 were issued in connection with new stock grants; 847 shares valued at $144,000 were issued through the Company's dividend reinvestment plan; 60,693 shares valued at $10,242,000 were withheld to satisfy employees' tax withholding and other liabilities; and 147 restricted shares with an aggregate value of $29,000 previously issued in connection with employee compensation were canceled upon forfeiture.

•Common stock dividends declared but not paid totaled $231,438,000.

•The Company recorded an increase of $286,000 in redeemable noncontrolling interest with a corresponding decrease to accumulated earnings less dividends to adjust the redemption value associated with the put options held by joint venture partners and DownREIT partnership units.

•The Company recorded (i) an increase to accrued expenses and other liabilities of $650,000, an increase to prepaid expenses and other assets of $310,000 and a corresponding adjustment of $340,000 to accumulated other comprehensive income; and (ii) reclassified $354,000 of cash flow hedge losses from other comprehensive income (loss) to interest expense, net, to record the impact of the Company's derivative and hedging activity.

During the three months ended March 31, 2022:

•The Company issued 132,135 shares of common stock as part of the Company's stock-based compensation plans, of which 54,053 shares related to the conversion of performance awards to shares of common stock, and the remaining 78,082 shares valued at $18,441,000 were issued in connection with new stock grants; 605 shares valued at $150,000 were issued through the Company's dividend reinvestment plan; 69,721 shares valued at $16,365,000 were withheld to satisfy employees' tax withholding and other liabilities; and 1,181 restricted shares with an aggregate value of $255,000 previously issued in connection with employee compensation were canceled upon forfeiture.

•Common stock dividends declared but not paid totaled $222,754,000.

•The Company recorded an increase of $43,000 in redeemable noncontrolling interest with a corresponding decrease to accumulated earnings less dividends to adjust the redemption value associated with the put options held by joint venture partners and DownREIT partnership units.

•The Company recorded (i) an increase to prepaid expenses and other assets of $10,155,000 and a corresponding adjustment to accumulated other comprehensive loss and (ii) reclassified $1,013,000 of cash flow hedge losses from other comprehensive income (loss) to interest expense, net, to record the impact of the Company's derivative and hedging activity.

4

AVALONBAY COMMUNITIES, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

1.  Organization, Basis of Presentation and Significant Accounting Policies

Organization and Basis of Presentation

AvalonBay Communities, Inc. (the "Company," which term, unless the context otherwise requires, refers to AvalonBay Communities, Inc. together with its subsidiaries) is a Maryland corporation that has elected to be treated as a real estate investment trust ("REIT") for federal income tax purposes under the Internal Revenue Code of 1986, as amended (the "Code"). The Company focuses on the development, redevelopment, acquisition, ownership and operation of multifamily communities in New England, the New York/New Jersey metro area, the Mid-Atlantic, the Pacific Northwest, and Northern and Southern California, as well as in the Company's expansion regions of Raleigh-Durham and Charlotte, North Carolina, Southeast Florida, Dallas and Austin, Texas, and Denver, Colorado.

At March 31, 2023, the Company owned or held a direct or indirect ownership interest in 295 operating apartment communities containing 88,826 apartment homes in 12 states and the District of Columbia, of which 19 communities were under development and one was under redevelopment. The Company also owned or held a direct or indirect ownership interest in land or rights to land on which the Company expects to develop an additional 41 communities that, if developed as expected, will contain an estimated 14,290 apartment homes.

The interim unaudited financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and in conjunction with the rules and regulations of the Securities and Exchange Commission ("SEC"). Certain information and footnote disclosures normally included in financial statements required by GAAP have been condensed or omitted pursuant to such rules and regulations. These unaudited financial statements should be read in conjunction with the financial statements and notes included in the Company's Annual Report on Form 10-K for the year ended December 31, 2022. The results of operations for the three months ended March 31, 2023 are not necessarily indicative of the operating results for the full year. Management believes the disclosures are adequate to ensure the information presented is not misleading. In the opinion of management, all adjustments and eliminations, consisting only of normal, recurring adjustments necessary for a fair presentation of the financial statements for the interim periods, have been included.

Capitalized terms used without definition have meanings provided elsewhere in this Form 10-Q.

Cash, Cash Equivalents and Cash in Escrow

Cash and cash equivalents includes all cash and liquid investments with an original maturity of three months or less from the date acquired. Cash in escrow includes principal reserve funds that are restricted for the repayment of specified secured financing and amounts the Company has designated for planned 1031 exchange activity. The majority of the Company's cash, cash equivalents and cash in escrow are held at major commercial banks.

Earnings per Common Share

Basic earnings per share is computed by dividing net income attributable to common stockholders by the weighted average number of shares outstanding during the period. All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with common shareholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per share ("EPS"). Both the unvested restricted shares and other potentially dilutive common shares, and the related impact to earnings, are considered when calculating earnings per share on a diluted basis. The Company's earnings per common share are determined as follows (dollars in thousands, except per share data):

5

	For the three months ended March 31,
	2023		2022
Basic and diluted shares outstanding
Weighted average common shares - basic	139,766,727		139,559,904
Weighted average DownREIT units outstanding	7,500		7,500
Effect of dilutive securities	249,583		408,678
Weighted average common shares - diluted	140,023,810		139,976,082
Calculation of Earnings per Share - basic
Net income attributable to common stockholders	$	146,902	$	262,044
Net income allocated to unvested restricted shares	(267)		(523)
Net income attributable to common stockholders - basic	$	146,635	$	261,521
Weighted average common shares - basic	139,766,727		139,559,904
Earnings per common share - basic	$	1.05	$	1.87
Calculation of Earnings per Share - diluted
Net income attributable to common stockholders	$	146,902	$	262,044
Add: noncontrolling interests of DownREIT unitholders in consolidated partnerships, including discontinued operations	12		12
Net income attributable to common stockholders - diluted	$	146,914	$	262,056
Weighted average common shares - diluted	140,023,810		139,976,082
Earnings per common share - diluted	$	1.05	$	1.87

Certain options to purchase shares of common stock in the amounts of 307,625 and 9,793 were outstanding as of March 31, 2023 and 2022, respectively, but were not included in the computation of diluted earnings per share because such options were anti-dilutive for the period.

Derivative Instruments and Hedging Activities

The Company enters into interest rate swap and interest rate cap agreements (collectively, "Hedging Derivatives") for interest rate risk management purposes and in conjunction with certain variable rate secured debt to satisfy lender requirements. The Company does not enter into Hedging Derivatives for trading or other speculative purposes. The Company assesses the effectiveness of qualifying cash flow and fair value hedges, both at inception and on an ongoing basis. The fair values of Hedging Derivatives that are in an asset position are recorded in prepaid expenses and other assets. The fair values of Hedging Derivatives that are in a liability position are included in accrued expenses and other liabilities. The Company does not present or disclose the fair value of Hedging Derivatives on a net basis. Fair value changes for derivatives that are not in qualifying hedge relationships are reported as a component of interest expense, net. For the Hedging Derivatives that qualify as effective cash flow hedges, the Company has recorded the cumulative changes in the fair value of Hedging Derivatives in accumulated other comprehensive income (loss). Amounts recorded in accumulated other comprehensive loss will be reclassified into earnings in the periods in which earnings are affected by the hedged cash flow. The effective portion of the change in fair value of the Hedging Derivatives that qualify as effective fair value hedges is reported as an adjustment to the carrying amount of the corresponding hedged item. See Note 11, “Fair Value,” for further discussion of derivative financial instruments.

Legal and Other Contingencies

The Company is involved in various claims and/or administrative proceedings that arise in the ordinary course of its business. The Company recognizes a loss associated with contingent legal matters when the loss is probable and estimable. While no assurances can be given, the Company does not currently believe that any of these outstanding litigation matters, individually or in the aggregate, will have a material adverse effect on its financial condition or results of operations.

6

Acquisitions of Investments in Real Estate

The Company accounts for real estate acquisitions, by first determining if the real estate investment is the acquisition of an asset or a business combination. Under either model, the Company identifies and determines the fair value of any assets acquired, liabilities assumed and any noncontrolling interest in the acquiree. Typical assets acquired and liabilities assumed include land, building, furniture, fixtures and equipment, debt and identified intangible assets and liabilities, consisting of the value of above or below market leases and in-place leases. The Company utilizes various sources to determine fair value, including its own analysis of recently acquired and existing comparable properties in its portfolio and other market data. Consideration for acquisitions is typically in the form of cash unless otherwise disclosed. For a business combination, the Company records the assets acquired and liabilities assumed based on the fair value of each respective item. For an asset acquisition, the purchase price is allocated based on the relative fair value of the net assets. The Company expenses all applicable acquisition costs for a business combination and capitalizes all applicable acquisition costs for an asset acquisition. The Company expects that acquisitions of individual operating communities will generally be asset acquisitions.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates.

Reclassifications

Certain reclassifications have been made to amounts in prior years' notes to financial statements to conform to current year presentations as a result of changes in held for sale classification, disposition activity, segment classification and classification of for-sale condominium inventory and activity.

For-Sale Condominium Inventory

The Company presents for-sale condominium inventory at historical cost and evaluates the condominiums for impairment when potential indicators exist, as further discussed in Note 5, "Investments." For-sale condominium inventory is included as a component of prepaid expenses and other assets on the accompanying Condensed Consolidated Balance Sheets.

Income Taxes

During the three months ended March 31, 2023 and 2022, the Company recognized income tax expense of $3,560,000 and $2,471,000, respectively, primarily related to The Park Loggia.

Leases

The Company is party to leases as both a lessor and a lessee, primarily as follows:

•lessor of residential and commercial space within its apartment communities; and

•lessee under (i) ground leases for land underlying current operating or development communities and certain commercial and parking facilities and (ii) office leases for its corporate headquarters and regional offices.

Lessee Considerations

The Company assesses whether a contract is or contains a lease based on whether the contract conveys the right to control the use of an identified asset, including specified portions of larger assets, for a period of time in exchange for consideration.

The Company’s leases include both fixed and variable lease payments that are based on an index or rate such as the consumer price index (CPI) or percentage rents based on total sales. Variable lease payments that are not based on an index or rate are not included in the measurement of the lease liability, but will be recognized as variable lease expense in the period in which they are incurred.

For leases that have options to extend the term or terminate the lease early, the Company only factored the impact of such options into the lease term if the option was considered reasonably certain to be exercised. The Company determined the discount rate associated with its ground and office leases on a lease by lease basis using the Company’s actual borrowing rates

7

as well as indicative market pricing for longer term rates and taking into consideration the remaining term of the lease agreements. For leases that are 12 months or less, the Company has elected the practical expedient to not assess these leases under Accounting Standards Codification ("ASC") 842, Leases, and recognize the lease payments on a straight line basis.

Lessor Considerations

The Company has determined that the residential and commercial leases at its apartment communities are operating leases. For leases that include rent concessions and/or fixed and determinable rent increases, rental income is recognized on a straight-line basis over the noncancellable term of the lease, which, for residential leases, is generally one year. Some of the Company’s commercial leases have renewal options which the Company will only include in the lease term if, at the commencement of the lease, it is reasonably certain that the lessee will exercise this option.

For the Company’s leases, which are comprised of a lease component and common area maintenance as a non-lease component, the Company determined that (i) the leases are operating leases, (ii) the lease component is the predominant component and (iii) all components of its operating leases share the same timing and pattern of transfer.

Revenue and Gain Recognition

Under ASC 606, Revenue from Contracts with Customers, the Company recognizes revenue for the transfer of goods and services to customers for consideration that the Company expects to receive. The majority of the Company’s revenue is derived from residential and commercial rental and other lease income, which are accounted for as discussed above, under "Leases". The Company's revenue streams that are not accounted for under ASC 842, Leases, include (i) management, development and other fees, (ii) non-lease related revenue and (iii) gains or losses on the sale of real estate.

The following table details the Company’s revenue disaggregated by reportable operating segment, further discussed in Note 8, “Segment Reporting,” for the three months ended March 31, 2023 and 2022. Segment information for total revenue excludes real estate assets that were sold from January 1, 2022 through March 31, 2023, or otherwise qualify as held for sale as of March 31, 2023, as described in Note 6, "Real Estate Disposition Activities" (dollars in thousands):

	Same Store		Other Stabilized		Development/ Redevelopment		Non- allocated (1)		Total
For the three months ended March 31, 2023
Management, development and other fees and other ancillary items	$	—	$	—	$	—	$	1,066	$	1,066
Non-lease related revenue (2)	2,604		1,141		36		—		3,781
Total non-lease revenue (3)	2,604		1,141		36		1,066		4,847
Lease income (4)	627,325		30,589		10,464		—		668,378
Total revenue	$	629,929	$	31,730	$	10,500	$	1,066	$	673,225
For the three months ended March 31, 2022
Management, development and other fees and other ancillary items	$	—	$	—	$	—	$	752	$	752
Non-lease related revenue (2)	2,258		410		13		—		2,681
Total non-lease revenue (3)	2,258		410		13		752		3,433
Lease income (4)	573,386		14,805		6,039		—		594,230
Total revenue	$	575,644	$	15,215	$	6,052	$	752	$	597,663

__________________________________

(1)Represents third-party property management, developer fees and miscellaneous income and other ancillary items which are not allocated to a reportable segment.

(2)Amounts include revenue streams related to leasing activities that are not considered components of a lease, and revenue streams not related to leasing activities including, but not limited to, application fees, renters insurance fees and vendor revenue sharing.

(3)Represents revenue accounted for under ASC 606.

(4)Represents residential and commercial rental and other lease income, accounted for under ASC 842.

8

Due to the nature and timing of the Company’s identified revenue streams, there were no material amounts of outstanding or unsatisfied performance obligations as of March 31, 2023.

Uncollectible Lease Revenue Reserves

The Company assesses the collectability of its lease revenue and receivables on an ongoing basis by (i) assessing the probability of receiving all lease amounts due on a lease by lease basis, (ii) reserving all amounts for those leases where collection of substantially all of the remaining lease payments is not probable and (iii) subsequently, will only recognize revenue to the extent cash is received. If the Company determines that collection of the remaining lease payments becomes probable at a future date, the Company will recognize the cumulative revenue that would have been recorded under the original lease agreement.

In addition to the specific reserves recognized under ASC 842, the Company also evaluates its lease receivables for collectability at a portfolio level under ASC 450, Contingencies – Loss Contingencies. The Company recognizes a reserve under ASC 450 when the uncollectible revenue is probable and reasonably estimable. The Company applies this reserve to the population of the Company’s revenue and receivables not specifically addressed as part of the specific ASC 842 reserve.

The Company recorded an aggregate offset to income for uncollectible lease revenue, net of amounts received from government rent relief programs, for its residential and commercial portfolios of $16,971,000 and $13,600,000 for the three months ended March 31, 2023 and 2022, respectively, under ASC 842 and ASC 450.

2.  Interest Capitalized

The Company capitalizes interest during the development and redevelopment of real estate assets. Capitalized interest associated with the Company's development or redevelopment activities totaled $11,018,000 and $7,100,000 for the three months ended March 31, 2023 and 2022, respectively.

3.  Debt

The Company's debt, which consists of unsecured notes, the variable rate unsecured term loan (the "Term Loan"), mortgage notes payable, the Credit Facility and the Commercial Paper Program, each as defined below, as of March 31, 2023 and December 31, 2022 are summarized below. The following amounts and discussion do not include the mortgage notes related to the communities classified as held for sale, if any, as of March 31, 2023 and December 31, 2022, as shown in the accompanying Condensed Consolidated Balance Sheets (dollars in thousands) (see Note 6, "Real Estate Disposition Activities"). The weighted average interest rates in the following table for secured and unsecured notes include costs of financing such as credit enhancement fees, trustees' fees, the impact of interest rate hedges and mark-to-market adjustments.

	March 31, 2023				December 31, 2022
Fixed rate unsecured notes	$	7,250,000	3.3	%	$	7,500,000	3.3	%
Term Loan	150,000		5.9	%	150,000		5.4	%
Fixed rate mortgage notes payable - conventional and tax-exempt	270,677		3.4	%	270,677		3.4	%
Variable rate mortgage notes payable - conventional and tax-exempt	456,250		5.6	%	457,150		5.3	%
Total mortgage notes payable and unsecured notes and Term Loan	8,126,927		3.5	%	8,377,827		3.4	%
Credit Facility	—		—	%	—		—	%
Commercial paper	—		—	%	—		—	%
Total principal outstanding	8,126,927		3.5	%	8,377,827		3.4	%
Less deferred financing costs and debt discount (1)	(60,032)				(61,782)
Total	$	8,066,895			$	8,316,045

_____________________________________

(1)Excludes deferred financing costs and debt discount associated with the Credit Facility and the Commercial Paper Program which are included in prepaid expenses and other assets on the accompanying Condensed Consolidated Balance Sheets.

The borrowing capacity under the Credit Facility is impacted by the Commercial Paper Program and outstanding letters of credit, which as of March 31, 2023 and December 31, 2022, were $1,914,000.

9

After taking into account its letters of credit, the Company had $2,248,086,000 available under the Credit Facility as of March 31, 2023. In addition, the Company had $50,682,000 and $48,740,000 outstanding in additional letters of credit unrelated to the Credit Facility as of March 31, 2023 and December 31, 2022, respectively.

During the three months ended March 31, 2023, the Company repaid $250,000,000 principal amount of its 2.85% unsecured notes at its maturity.

In March 2022, the Company established an unsecured commercial paper note program (the “Commercial Paper Program”). Under the terms of the Commercial Paper Program, the Company may issue, from time to time, unsecured commercial paper notes with varying maturities of less than one year. Amounts available under the Commercial Paper Program may be issued, repaid and re-issued from time to time, with the maximum aggregate face or principal amount outstanding at any one time not to exceed $500,000,000. The Commercial Paper Program is backstopped by the Company's commitment to maintain available borrowing capacity under the Credit Facility in an amount equal to actual borrowings under the Commercial Paper Program.

At March 31, 2023, the Company had a $2,250,000,000 revolving variable rate unsecured credit facility with a syndicate of banks (the "Credit Facility") which matures in September 2026. The interest rate that would be applicable to borrowings under the Credit Facility is 5.70% at March 31, 2023 and is composed of (i) the Secured Overnight Financing Rate ("SOFR"), applicable to the period of borrowing for a particular draw of funds from the facility (e.g., one month to maturity, three months to maturity, etc.), plus (ii) the current borrowing spread to SOFR of 0.825% per annum, which consists of a 0.10% SOFR adjustment plus 0.725% per annum, assuming a one month term SOFR borrowing rate. The borrowing spread to SOFR can vary from SOFR plus 0.65% to SOFR plus 1.40% based upon the rating of the Company's unsecured and unsubordinated long-term indebtedness. There is also an annual facility commitment fee of 0.125% of the borrowing capacity under the facility, which can vary from 0.10% to 0.30% based upon the rating of the Company's unsecured and unsubordinated long-term indebtedness. The Credit Facility contains a sustainability-linked pricing component which provides for interest rate margin and commitment fee reductions or increases by meeting or missing targets related to environmental sustainability, specifically greenhouse gas emission reductions, with the adjustment determined annually beginning in July 2023.

In the aggregate, secured notes payable mature at various dates from March 2027 through July 2066, and are secured by certain apartment communities (with a net carrying value of $1,174,526,000, excluding communities classified as held for sale, as of March 31, 2023).

In addition to the Commercial Paper Program, scheduled payments and maturities of secured notes payable and unsecured notes outstanding at March 31, 2023 were as follows (dollars in thousands):

Year	Secured notes principal payments and maturities		Unsecured notes and Term Loan maturities			Stated interest rate of unsecured notes and Term Loan
2023	$	7,400	$	350,000		4.200	%
2024	9,100		300,000			3.500	%
			150,000		(1)	SOFR + 0.95%
2025	9,700		525,000			3.450	%
			300,000			3.500	%
2026	10,600		475,000			2.950	%
			300,000			2.900	%
2027	249,000		400,000			3.350	%
2028	17,600		450,000			3.200	%
			400,000			1.900	%
2029	74,750		450,000			3.300	%
2030	9,000		700,000			2.300	%
2031	9,600		600,000			2.450	%
2032	10,300		700,000			2.050	%
Thereafter	319,877		350,000			5.000	%
			350,000			3.900	%
			300,000			4.150	%
			300,000			4.350	%
	$	726,927	$	7,400,000

_________________________________

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(1)     The borrowing spread to SOFR of 0.95% per annum, consists of a 0.10% SOFR adjustment plus 0.85% per annum.

The Company was in compliance at March 31, 2023 with customary covenants under the Credit Facility and the Commercial Paper Program, the Term Loan and the indentures under which the Company's unsecured notes were issued.

4.  Equity

The following summarizes the changes in equity for the three months ended March 31, 2023 and 2022 (dollars in thousands):

	Common stock		Additional paid-in capital		Accumulated earnings less dividends		Accumulated other comprehensive income (loss)		Total stockholder's equity		Noncontrolling interests		Total equity
Balance at December 31, 2022	$	1,400	$	10,765,431	$	485,221	$	1,424	$	11,253,476	$	77	$	11,253,553
Net income attributable to common stockholders	—		—		146,902		—		146,902		—		146,902
Loss on cash flow hedges, net	—		—		—		(340)		(340)		—		(340)
Cash flow hedge losses reclassified to earnings	—		—		—		354		354		—		354
Change in redemption value of redeemable noncontrolling interest	—		—		(286)		—		(286)		—		(286)
Dividends declared to common stockholders ($1.65 per share)	—		—		(230,958)		—		(230,958)		—		(230,958)
Issuance of common stock, net of withholdings	1		(11,554)		1,590		—		(9,963)		—		(9,963)
Repurchase of common stock, including repurchase costs	—		(539)		(590)		—		(1,129)		—		(1,129)
Amortization of deferred compensation	—		11,123		—		—		11,123		—		11,123
Balance at March 31, 2023	$	1,401	$	10,764,461	$	401,879	$	1,438	$	11,169,179	$	77	$	11,169,256

	Common stock		Additional paid-in capital		Accumulated earnings less dividends		Accumulated other comprehensive income (loss)		Total stockholder's equity		Noncontrolling interests		Total equity
Balance at December 31, 2021	$	1,398	$	10,716,414	$	240,821	$	(26,106)	$	10,932,527	$	566	$	10,933,093
Net income attributable to common stockholders	—		—		262,044		—		262,044		—		262,044
Gain on cash flow hedges, net	—		—		—		10,155		10,155		—		10,155
Cash flow hedge losses reclassified to earnings	—		—		—		1,013		1,013		—		1,013
Change in redemption value of redeemable noncontrolling interest	—		—		(43)		—		(43)		—		(43)
Noncontrolling interest distribution and income allocation	—		—		—		—		—		(10)		(10)
Dividends declared to common stockholders ($1.59 per share)	—		—		(222,373)		—		(222,373)		—		(222,373)
Issuance of common stock, net of withholdings	1		(14,263)		(1,501)		—		(15,763)		—		(15,763)
Amortization of deferred compensation	—		9,176		—		—		9,176		—		9,176
Balance at March 31, 2022	$	1,399	$	10,711,327	$	278,948	$	(14,938)	$	10,976,736	$	556	$	10,977,292

As of March 31, 2023 and December 31, 2022, the Company's charter had authorized for issuance a total of 280,000,000 shares of common stock and 50,000,000 shares of preferred stock.

11

During the three months ended March 31, 2023, the Company:

i.issued 1,932 shares of common stock in connection with stock options exercised;

ii.issued 847 shares of common stock through the Company's dividend reinvestment plan;

iii.issued 151,053 shares of common stock in connection with restricted stock grants and the conversion of performance awards to shares of common stock;

iv.withheld 60,693 shares of common stock to satisfy employees' tax withholding and other liabilities;

v.canceled 147 shares of restricted common stock upon forfeiture; and

vi.repurchased 7,000 common shares through the 2020 Stock Repurchase Program.

Deferred compensation granted under the Company's Second Amended and Restated 2009 Equity Incentive Plan (the "2009 Plan") for the three months ended March 31, 2023 does not impact the Company's Condensed Consolidated Financial Statements until recognized as compensation cost.

In July 2020, the Company’s Board of Directors approved a stock repurchase program under which the Company may acquire shares of its common stock in open market or negotiated transactions up to an aggregate purchase price of $500,000,000 (the "2020 Stock Repurchase Program"). Purchases of common stock under the 2020 Stock Repurchase Program may be exercised at the Company’s discretion with the timing and number of shares repurchased depending on a variety of factors, including price, corporate and regulatory requirements and other corporate liquidity requirements and priorities. The 2020 Stock Repurchase Program does not have an expiration date and may be suspended or terminated at any time without prior notice. During the three months ended March 31, 2023, the Company repurchased 7,000 shares of common stock at an average price of $161.29 per share. As of March 31, 2023, the Company had $315,019,000 remaining authorized for purchase under this program.

In May 2019, the Company commenced a fifth continuous equity program ("CEP V") under which the Company may sell (and/or enter into forward sale agreements for the sale of) up to $1,000,000,000 of its common stock from time to time. Actual sales will depend on a variety of factors to be determined by the Company, including market conditions, the trading price of the Company's common stock and the Company's determinations of the appropriate funding sources. The Company engaged sales agents for CEP V who receive compensation of up to 1.5% of the gross sales price for shares sold. The Company expects that, if entered into, it will physically settle each forward sale agreement on one or more dates specified by the Company on or prior to the maturity date of that particular forward sale agreement, in which case the Company will receive aggregate net cash proceeds at settlement equal to the number of shares underlying the particular forward agreement multiplied by the forward sale price. However, the Company may also elect to cash settle or net share settle a forward sale agreement. In connection with each forward sale agreement, the Company will pay the forward seller, in the form of a reduced initial forward sale price, a commission of up to 1.5% of the sales prices of all borrowed shares of common stock sold. During the three months ended March 31, 2023, the Company had no sales under this program. As of March 31, 2023, the Company had $705,961,000 remaining authorized for issuance under CEP V.

In addition to CEP V, during April 2022, the Company completed an underwritten public offering of 2,000,000 shares of its common stock for an initial net forward sales price of $247.30 per share, after offering fees and discounts, offered in connection with forward contracts entered into with certain financial institutions acting as forward purchasers (the "Equity Forward") (see Note 12, "Subsequent Events" for a discussion of the settlement of the Equity Forward in April 2023).

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5.  Investments

Unconsolidated Investments

As of March 31, 2023, the Company had investments in six unconsolidated real estate entities with ownership interest percentages ranging from 20.0% to 50.0% and other unconsolidated investments including property technology and environmentally focused companies and investment management funds. The Company accounts for its unconsolidated investments under the equity method of accounting or under the measurement alternative with the carrying amount of the investment adjusted to fair value when there is an observable transaction for the same or similar investment of the same issuer indicating a change in fair value. The significant accounting policies of the Company's unconsolidated investments are consistent with those of the Company in all material respects. Certain of these investments are subject to various buy‑sell provisions or other rights which are customary in real estate joint venture agreements. The Company and its partners in these entities may initiate these provisions to either sell the Company's interest or acquire the interest from the Company's partner.

Structured Investment Program

In April 2022, the Company established its Structured Investment Program (the “SIP”), an investment platform through which the Company provides mezzanine loans or preferred equity to third-party multifamily developers in the Company's existing markets. As of March 31, 2023, the Company had commitments to fund three mezzanine loans of up to $92,375,000 in the aggregate. The mezzanine loans have a weighted average rate of return of 9.8% and mature at various dates on or before June 2026. At March 31, 2023, the Company had funded $42,074,000 of these commitments.

The Company evaluates each SIP commitment to determine the classification as a loan or an investment in a real estate development project. As of March 31, 2023, all of the SIP commitments are classified as loans. The Company includes amounts outstanding under the SIP as a component of prepaid expenses and other assets on the accompanying Condensed Consolidated Balance Sheets. The Company evaluates the credit risk for each loan on an ongoing basis, estimating the reserve for credit losses using relevant available information from internal and external sources. Market-based historical credit loss data provides the basis for the estimation of expected credit losses, with adjustments, if necessary, for differences in current loan-specific risk characteristics, such as the amount of equity capital provided by a borrower, nature of the real estate being developed or other factors.

For the three existing loans, interest is recognized as earned as interest income, and interest income and any change in the expected credit loss are included as a component of income from unconsolidated investments, on the accompanying Condensed Consolidated Statements of Comprehensive Income.

Expensed Transaction, Development and Other Pursuit Costs

The Company capitalizes costs associated with its development activities when future development is probable ("Development Rights") to the basis of land held, or if the Company has either not yet acquired the land or if the project is subject to a leasehold interest, the costs are capitalized as deferred development costs. Future development of these Development Rights is dependent upon various factors, including zoning and regulatory approval, rental market conditions, construction costs and the availability of capital. Costs incurred for pursuits for which future development is not yet considered probable are expensed as incurred. In addition, if the Company determines a Development Right is no longer probable, the Company recognizes any necessary expense to write down its basis in the Development Right. The Company expensed costs related to development pursuits not yet considered probable for development and the abandonment of Development Rights, as well as costs incurred in pursuing the acquisition or disposition of assets for which such acquisition and disposition activity did not occur, in the amounts of $2,992,000 and $987,000 for the three months ended March 31, 2023 and 2022, respectively. These costs are included in expensed transaction, development and other pursuit costs, net of recoveries on the accompanying Condensed Consolidated Statements of Comprehensive Income. These costs can vary greatly, and the costs incurred in any given period may be significantly different in future periods.

Impairment of Long-Lived Assets and Casualty Loss

The Company evaluates its real estate and other long-lived assets for impairment when potential indicators of impairment exist. Such assets are stated at cost, less accumulated depreciation and amortization, unless the carrying amount of the asset is not recoverable. If events or circumstances indicate that the carrying amount of an asset may not be recoverable, the Company assesses its recoverability by comparing the carrying amount of the asset to its estimated undiscounted future cash flows. If the carrying amount exceeds the aggregate undiscounted future cash flows, the Company recognizes an impairment loss to the extent the carrying amount exceeds the estimated fair value of the asset. Based on periodic tests of recoverability of long-lived

13

assets, for the three months ended March 31, 2023 and 2022, the Company did not recognize any material impairment losses. For the three months ended March 31, 2023, the Company recognized a charge of $5,051,000 for the property and casualty damages across certain communities in its Northeast and California regions related to severe weather, reported as casualty loss on the accompanying Condensed Consolidated Statements of Comprehensive Income.

The Company evaluates its for-sale condominium inventory for potential indicators of impairment, considering whether the fair value of the individual for-sale condominium units exceeds the carrying value of those units. For-sale condominium inventory is stated at the lower of cost or fair value. The Company determines the fair value of its for-sale condominium inventory as the estimated sales price less direct costs to sell. For the three months ended March 31, 2023 and 2022, the Company did not recognize any impairment losses on its for-sale condominium inventory.

The Company assesses its portfolio of land held for both development and investment for impairment if the intent of the Company changes with respect to either the development of, or the expected holding period for, the land. For the three months ended March 31, 2023 and 2022, the Company did not recognize any impairment charges on its investment in land.

The Company evaluates its unconsolidated investments for other than temporary impairment, considering both the extent and amount by which the carrying value of the investment exceeds the fair value, and the Company's intent and ability to hold the investment to recover its carrying value. The Company also evaluates its proportionate share of any impairment of assets held by unconsolidated investments. There were no other than temporary impairment losses recognized for any of the Company's unconsolidated investments for the three months ended March 31, 2023 and 2022.

6.  Real Estate Disposition Activities

At March 31, 2023, the Company had one real estate asset that qualified as held for sale.

The Park Loggia

The Park Loggia, located in New York, NY, contains 172 for-sale residential condominiums and 66,000 square feet of commercial space. During the three months ended March 31, 2023 and 2022, the Company sold one and 15 residential condominiums at The Park Loggia for gross proceeds of $3,907,000 and $40,336,000, respectively, resulting in a gain in accordance with GAAP of $28,000 and $1,002,000, respectively. The Company incurred $202,000 and $766,000 for the three months ended March 31, 2023 and 2022, respectively, in marketing, operating and administrative costs. All amounts are included in other real estate activity, on the accompanying Condensed Consolidated Statements of Comprehensive Income. As of March 31, 2023, there were eight residential condominiums remaining to be sold. As of March 31, 2023 and December 31, 2022, the unsold for-sale residential condominiums at The Park Loggia had an aggregate carrying value of $28,913,000 and $32,532,000, respectively, presented in prepaid expenses and other assets on the accompanying Condensed Consolidated Balance Sheets.

7. Commitments and Contingencies

Lease Obligations

The Company owns seven apartment communities and two commercial properties, located on land subject to ground leases expiring between July 2046 and April 2106. The Company has purchase options for all ground leases expiring prior to 2062. The ground leases for six of the seven apartment communities and the two commercial properties are operating leases, with rental expense recognized on a straight-line basis over the lease term. In addition, the Company is party to 13 leases for its corporate and regional offices with varying terms through 2031, all of which are operating leases.

As of March 31, 2023 and December 31, 2022, the Company had total operating lease assets of $109,976,000 and $114,977,000, respectively, and lease obligations of $137,359,000 and $142,602,000, respectively, reported as components of right of use lease assets and lease liabilities, respectively, on the accompanying Condensed Consolidated Balance Sheets. The Company incurred costs of $4,005,000 and $3,706,000 for the three months ended March 31, 2023 and 2022, respectively, related to operating leases.

14

The Company has one apartment community located on land subject to a ground lease and four leases for portions of parking garages adjacent to apartment communities, that are finance leases. As of March 31, 2023 and December 31, 2022, the Company had total finance lease assets of $28,282,000 and $28,354,000, respectively, and total finance lease obligations of $20,055,000 and $20,069,000, respectively, reported as components of right of use lease assets and lease liabilities on the accompanying Condensed Consolidated Balance Sheets.

8.  Segment Reporting

The Company's reportable operating segments include Same Store, Other Stabilized and Development/Redevelopment. Annually as of January 1, the Company determines which of its communities fall into each of these categories and generally maintains that classification throughout the year for the purpose of reporting segment operations, unless disposition or redevelopment plans regarding a community change. In addition, the Company owns land for future development and has other corporate assets that are not allocated to an operating segment.

The Company's segment disclosures present the measure(s) used by the chief operating decision maker ("CODM") for assessing each segment's performance. The Company's CODM is comprised of several members of its executive management team who use net operating income ("NOI") as the primary financial measure for Same Store communities and Other Stabilized communities. NOI is defined by the Company as total property revenue less direct property operating expenses (including property taxes), and excluding corporate-level income (including management, development and other fees), corporate-level property management and other indirect operating expenses, expensed transaction, development and other pursuit costs, net of recoveries, interest expense, net, loss on extinguishment of debt, net, general and administrative expense, income from unconsolidated investments, depreciation expense, income tax expense, casualty loss, loss (gain) on sale of communities, other real estate activity and net operating income from real estate assets sold or held for sale. The CODM evaluates the Company's financial performance on a consolidated residential and commercial basis. The commercial results attributable to the non-apartment components of the Company's mixed-use communities and other nonresidential operations represent 1.9% and 2.0% of total NOI for the three months ended March 31, 2023 and 2022, respectively. Although the Company considers NOI a useful measure of a community's or communities' operating performance, NOI should not be considered an alternative to net income or net cash flow from operating activities, as determined in accordance with GAAP. NOI excludes a number of income and expense categories as detailed in the reconciliation of NOI to net income.

A reconciliation of NOI to net income for the three months ended March 31, 2023 and 2022 is as follows (dollars in thousands):

	For the three months ended March 31,
	2023		2022
Net income	$	146,775	$	262,076
Property management and other indirect operating expenses, net of corporate income	30,784		28,113
Expensed transaction, development and other pursuit costs, net of recoveries	2,992		987
Interest expense, net	56,821		56,526
General and administrative expense	20,400		17,421
Income from unconsolidated investments	(4,845)		(317)
Depreciation expense	204,743		201,786
Income tax expense	3,560		2,471
Casualty loss	5,051		—
Loss (gain) on sale of communities	13		(148,800)
Other real estate activity	(129)		(273)
Net operating income from real estate assets sold or held for sale	(1,126)		(10,277)
Net operating income	$	465,039	$	409,713

The following is a summary of NOI from real estate assets sold or held for sale for the periods presented (dollars in thousands):

	For the three months ended March 31,
	2023		2022
Rental income from real estate assets sold or held for sale	$	1,483	$	16,264
Operating expenses from real estate assets sold or held for sale	(357)		(5,987)
Net operating income from real estate assets sold or held for sale	$	1,126	$	10,277

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The primary performance measure for communities under development or redevelopment depends on the stage of completion. While under development, management monitors actual construction costs against budgeted costs as well as lease-up pace and rent levels compared to budget.

The following table details the Company's segment information as of the dates specified (dollars in thousands). The segments are classified based on the individual community's status at January 1, 2023. Segment information for the three months ended March 31, 2023 and 2022 has been adjusted to exclude the real estate assets that were sold from January 1, 2022 through March 31, 2023, or otherwise qualify as held for sale as of March 31, 2023, as described in Note 6, "Real Estate Disposition Activities."

	For the three months ended
	Total revenue		NOI		Gross real estate (1)
For the period ended March 31, 2023
Same Store
New England	$	92,435	$	61,511	$	2,976,832
Metro NY/NJ	132,495		92,052		4,470,962
Mid-Atlantic	92,079		64,739		3,511,646
Southeast Florida	19,310		12,933		799,221
Denver, CO	6,847		4,944		321,744
Pacific Northwest	42,660		30,429		1,536,311
Northern California	105,145		74,788		3,771,728
Southern California	133,099		90,982		4,771,435
Other Expansion Regions	5,859		4,076		326,335
Total Same Store	629,929		436,454		22,486,214
Other Stabilized	31,730		22,348		1,518,856
Development / Redevelopment	10,500		6,237		1,781,207
Land Held for Development	N/A		N/A		177,889
Non-allocated (2)	1,066		N/A		126,069
Total	$	673,225	$	465,039	$	26,090,235
For the period ended March 31, 2022
Same Store
New England	$	82,806	$	53,448	$	2,939,442
Metro NY/NJ	118,641		81,495		4,437,153
Mid-Atlantic	85,300		58,495		3,477,547
Southeast Florida	16,459		10,482		793,309
Denver, CO	6,315		4,727		320,803
Pacific Northwest	38,851		27,476		1,526,324
Northern California	97,105		68,753		3,729,145
Southern California	124,968		86,447		4,717,572
Other Expansion Regions	5,199		3,603		321,265
Total Same Store	575,644		394,926		22,262,560
Other Stabilized	15,215		10,739		1,052,283
Development / Redevelopment	6,052		4,048		943,753
Land Held for Development	N/A		N/A		218,852
Non-allocated (2)	752		N/A		113,478
Total	$	597,663	$	409,713	$	24,590,926

__________________________________

(1)Does not include gross real estate assets held for sale of $35,556 as of March 31, 2023 and gross real estate either sold or classified as held for sale subsequent to March 31, 2022 of $433,495.

(2)Revenue represents third-party property management, developer fees and miscellaneous income and other ancillary items which are not allocated to a reportable segment.

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9.  Stock-Based Compensation Plans

As part of its long-term compensation plans, the Company has granted stock options, performance awards and restricted stock under the 2009 Plan. Details of the outstanding awards and activity under the 2009 Plan for the three months ended March 31, 2023 are presented below.

Stock Options:

	Options	Weighted average exercise price per option
Options Outstanding at December 31, 2022	293,813	$	181.85
Granted (1)	15,744	177.83
Exercised	(1,932)	130.23
Forfeited	—	—
Options Outstanding at March 31, 2023	307,625	$	181.97
Options Exercisable at March 31, 2023	283,735	$	180.96

__________________________________

(1)Grants are from recipient elections to receive a portion of earned restricted stock awards in the form of stock options.

Performance Awards:

	Performance awards	Weighted average grant date fair value per award (1)
Outstanding at December 31, 2022	279,067	$	225.46
Granted (2)	89,426	193.86
Change in awards based on performance (3)	(31,345)	241.49
Converted to shares of common stock	(60,016)	238.71
Forfeited	(1,936)	213.33
Outstanding at March 31, 2023	275,196	$	210.56

__________________________________

(1)Weighted average grant date fair value per award includes the impact of post grant modifications.

(2)The shares of common stock that may be earned is based on the total shareholder return metrics for the Company's common stock for 49,177 performance awards and financial metrics related to operating performance and leverage metrics of the Company for 40,249 performance awards.

(3)Represents the change in the number of performance awards earned based on performance achievement.

The Company used a Monte Carlo model to assess the compensation cost associated with the portion of the performance awards granted for which achievement will be determined by using total shareholder return measures. For the awards granted in 2023, the assumptions used are as follows:

	2023
Dividend yield	3.7%
Estimated volatility over the life of the plan (1)	22.9% - 26.1%
Risk free rate	4.35% - 4.61%
Estimated performance award value based on total shareholder return measure	$206.97

__________________________________

(1)Estimated volatility over the life of the plan is using 50% historical volatility and 50% implied volatility.

For the portion of the performance awards granted in 2023 for which achievement will be determined by using financial metrics, the compensation cost was based on an average grant date value of $177.83, and the Company's estimate of corporate achievement for the financial metrics.

17

Restricted Stock:

	Restricted stock shares	Restricted stock shares weighted average grant date fair value per share		Restricted stock shares converted from performance awards
Outstanding at December 31, 2022	161,714	$	210.97	26,370
Granted	91,037	177.75		—
Vested	(73,601)	209.34		(26,370)
Forfeited	(147)	195.71		—
Outstanding at March 31, 2023	179,003	$	194.76	—

Total employee stock-based compensation cost recognized in income was $8,018,000 and $6,887,000 for the three months ended March 31, 2023 and 2022, respectively, and total capitalized stock-based compensation cost was $3,284,000 and $2,377,000 for the three months ended March 31, 2023 and 2022, respectively. At March 31, 2023, there was a total unrecognized compensation cost of $55,569,000 for unvested restricted stock, stock options and performance awards, which is expected to be recognized over a weighted average period of 2.3 years. Forfeitures are included in compensation cost as they occur.

10.  Related Party Arrangements

Unconsolidated Entities

The Company manages unconsolidated real estate entities for which it receives asset management, property management, construction, development and redevelopment fee revenue. From these entities, the Company earned fees of $1,066,000 and $752,000 for the three months ended March 31, 2023 and 2022, respectively. In addition, the Company had outstanding receivables associated with its property and construction management roles of $3,141,000 and $2,855,000 as of March 31, 2023 and December 31, 2022, respectively.

Director Compensation

The Company recorded non-employee director compensation expense relating to restricted stock grants and deferred stock units in the amount of $615,000 and $515,000 for the three months ended March 31, 2023 and 2022, respectively, as a component of general and administrative expense. Deferred compensation relating to these restricted stock grants and deferred stock units to non-employee directors was $354,000 and $794,000 on March 31, 2023 and December 31, 2022, respectively, reported as a component of prepaid expenses and other assets on the accompanying Condensed Consolidated Balance Sheets.

11.  Fair Value

Financial Instruments Carried at Fair Value

Derivative Financial Instruments

The Company uses Hedging Derivatives to manage its interest rate risk. These instruments are carried at fair value in the Company's financial statements. The Company minimizes its credit risk on these transactions by dealing with major, creditworthy financial institutions which have an A or better credit rating by the Standard & Poor's Ratings Group, and monitors the credit ratings of counterparties and the exposure of the Company to any single entity. The Company believes the likelihood of realizing losses from counterparty nonperformance is remote. Although the Company has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, such as interest rate, term to maturity and volatility, the credit valuation adjustments associated with its derivatives use Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default by itself and its counterparties. As of March 31, 2023, the Company assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined it is not significant. As a result, the Company has determined that its derivative valuations are classified in Level 2 of the fair value hierarchy.

18

The following table summarizes the consolidated derivative positions at March 31, 2023 (dollars in thousands):

	Non-designated Hedges			Cash Flow Hedges
	Interest Rate Caps			Interest Rate Swaps
Notional balance	$	402,670		$	200,000
Weighted average interest rate (1)	5.6		%	N/A
Weighted average capped/swapped interest rate	6.1		%	3.1		%
Earliest maturity date	January 2024			June 2023
Latest maturity date	November 2026			February 2024

____________________________________

(1)For debt hedged by interest rate caps, represents the weighted average interest rate on the hedged debt prior to any impact of the associated interest rate caps.

During the three months ended March 31, 2023, the Company entered into $200,000,000 of new forward interest rate swap agreements executed to reduce the impact of variability in interest rates on a portion of the Company's anticipated future debt issuance activity. The Company expects to cash settle the swaps and either pay or receive cash for the then current fair value. Assuming that the Company issues the debt as expected, the hedging impact from these positions will then be recognized over the life of the issued debt as a yield adjustment.

The Company had five derivatives not designated as hedges at March 31, 2023 for which the fair value changes for the three months ended March 31, 2023 and 2022 were not material.

Cash flow hedge losses reclassified from accumulated other comprehensive loss into earnings were $354,000 and $1,013,000 for the three months ended March 31, 2023 and 2022, respectively.

The Company anticipates reclassifying approximately $1,415,000 of net hedging losses from accumulated other comprehensive loss into earnings within the next 12 months as an offset to the hedged item during this period.

Redeemable Noncontrolling Interests

The Company issued and has outstanding 7,500 units of limited partnership interest in a DownREIT which can be presented for cash redemption as determined by the partnership agreement. Under the DownREIT agreement, for each limited partnership unit, the limited partner is entitled to receive cash in the amount equal to the fair value of the Company's common stock on or about the date of redemption. In lieu of cash redemption, the Company may elect to exchange such units for an equal number of shares of the Company's common stock. The limited partnership units in the DownREIT are valued using the market price of the Company's common stock, a Level 1 price under the fair value hierarchy.

Equity Securities

The Company has direct equity investments in property technology and environmentally focused companies. These investments are accounted for using the measurement alternative and are valued at the market price of observable transactions, a Level 2 price under the fair value hierarchy.

Financial Instruments Not Carried at Fair Value

Cash and Cash Equivalents

Cash and cash equivalent balances are held with various financial institutions within accounts designed to preserve principal. The Company monitors credit ratings of these financial institutions and the concentration of cash and cash equivalent balances with any one financial institution and believes the likelihood of realizing material losses related to cash and cash equivalent balances is remote. Cash and cash equivalents are carried at their face amounts, which reasonably approximate their fair values and are Level 1 within the fair value hierarchy.

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Other Financial Instruments

Rents and other receivables and prepaid expenses, accounts and construction payable and accrued expenses and other liabilities are carried at their face amounts, which reasonably approximate their fair values. The Company determined that its notes receivables approximate fair value, because interest rates, yields and other terms are consistent with interest rates, yields and other terms currently available for similar instruments and are considered to be a Level 2 price within the fair value hierarchy.

Indebtedness

The Company values its fixed rate unsecured notes using quoted market prices, a Level 1 price within the fair value hierarchy. The Company values its mortgage notes payable, variable rate unsecured notes, including the Term Loan, and any outstanding amounts under the Credit Facility and Commercial Paper Program using a discounted cash flow analysis on the expected cash flows of each instrument. This analysis reflects the contractual terms of the instrument, including the period to maturity, and uses observable market-based inputs, including interest rate curves. The process also considers credit valuation adjustments to appropriately reflect the Company's nonperformance risk. The Company has concluded that the value of its mortgage notes payable, variable rate unsecured notes, Term Loan and any outstanding amounts under the Credit Facility and Commercial Paper Program are Level 2 prices as the majority of the inputs used to value its positions fall within Level 2 of the fair value hierarchy.

Financial Instruments Measured/Disclosed at Fair Value on a Recurring Basis

The following tables summarize the classification between the three levels of the fair value hierarchy of the Company's financial instruments measured/disclosed at fair value on a recurring basis (dollars in thousands):

	March 31, 2023
Description	Total Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Investments
Equity Securities	$	27,027	$	—	$	27,027	$	—
Notes Receivable, net	44,593		—		44,593		—
Non Designated Hedges
Interest Rate Caps	227		—		227		—
Interest Rate Swaps - Assets	310		—		310		—
Total Assets	$	72,157	$	—	$	72,157	$	—
Liabilities
Interest Rate Swaps - Liabilities	650		—		650		—
DownREIT units	1,261		1,261		—		—
Indebtedness
Fixed rate unsecured notes	6,535,913		6,535,913		—		—
Mortgage notes payable, Commercial Paper Program and variable rate unsecured notes	777,506		—		777,506		—
Total Liabilities	$	7,315,330	$	6,537,174	$	778,156	$	—

20

	December 31, 2022
Description	Total Fair Value		Quoted Prices in Active Markets for Identical Asset (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Investments
Equity Securities	$	27,027	$	—	$	27,027	$	—
Notes Receivable, net	28,860		—		28,860		—
Non Designated Hedges
Interest Rate Caps	455		—		455		—
Total Assets	$	56,342	—		56,342		—
Liabilities
DownREIT units	$	1,211	$	1,211	$	—	$	—
Indebtedness
Fixed rate unsecured notes	6,653,681		6,653,681		—		—
Mortgage notes payable, Commercial Paper Program and variable rate unsecured notes	768,984		—		768,984		—
Total Liabilities	$	7,423,876	$	6,654,892	$	768,984	$	—

12.  Subsequent Events

The Company has evaluated subsequent events through the date on which this Form 10-Q was filed, the date on which these financial statements were issued, and identified the items below for discussion.

In April 2023, the Company settled the Equity Forward, issuing 2,000,000 shares of common stock, net of offering fees and discounts, for $491,912,000 or $245.96 per share.

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

Management's Discussion and Analysis of Financial Condition and Results of Operations ("MD&A") is intended to help provide an understanding of our business, financial condition and results of operations. This MD&A should be read in conjunction with our Condensed Consolidated Financial Statements and the accompanying Notes to Condensed Consolidated Financial Statements included elsewhere in this report. This report, including the following MD&A, contains forward-looking statements regarding future events or trends that should be read in conjunction with the factors described under "Forward-Looking Statements" included in this report. Actual results or developments could differ materially from those projected in such statements as a result of the factors described under "Forward-Looking Statements" as well as the risk factors described in Part I, Item 1A. "Risk Factors" of our Annual Report on Form 10-K for the year ended December 31, 2022 (the "Form 10-K") and in Part II, Item 1A. "Risk Factors" in this report.

Capitalized terms used without definition have the meanings provided elsewhere in this Form 10-Q.

Executive Overview

Business Description

We develop, redevelop, acquire, own and operate multifamily apartment communities in New England, the New York/New Jersey metro area, the Mid-Atlantic, the Pacific Northwest, and Northern and Southern California, as well as in our expansion regions of Raleigh-Durham and Charlotte, North Carolina, Southeast Florida, Dallas and Austin, Texas, and Denver, Colorado. We focus on leading metropolitan areas that we believe are characterized by growing employment in high wage sectors of the economy, higher cost of home ownership and a diverse and vibrant quality of life. We believe these market characteristics have offered, and will continue to offer, the opportunity for superior risk-adjusted returns over the long-term on apartment community investments relative to other markets that do not have these characteristics. We seek to create long-term shareholder value by accessing cost effective capital; deploying that capital to develop, redevelop and acquire apartment communities in our markets; leveraging our strong operating organization, our culture, our scale and our competencies in technology and data science, to operate apartment communities; and selling communities when they no longer meet our long-term investment strategy or when pricing is attractive.

Our strategic vision is to be the leading apartment company in select U.S. markets, providing a range of distinctive living experiences that customers value. We pursue this vision by targeting what we believe are among the best markets and submarkets, leveraging our strategic capabilities in market research and consumer insight with disciplined capital allocation and balance sheet management. Our communities are predominately upscale and generally command among the highest rents in their markets. However, we also pursue the ownership and operation of apartment communities that target a variety of customer segments and price points, consistent with our goal of offering a broad range of products and services. We regularly evaluate the market allocation of our investments by current market value and share of total revenue and NOI, as well as relative asset value and submarket positioning.

First Quarter 2023 Operating Highlights

•Net income attributable to common stockholders for the three months ended March 31, 2023 was $146,902,000, a decrease of $115,142,000, or 43.9%, from the prior year period. The decrease is primarily attributable to decreases in real estate sales and related gains, partially offset by an increase in NOI from communities, over the prior year period.

•Same Store NOI attributable to our apartment rental operations, including parking and other ancillary residential revenue ("Residential"), for the three months ended March 31, 2023 was $430,430,000, an increase of $41,569,000, or 10.7%, over the prior year period. The increase over the prior year period was due to an increase in Residential rental revenues of $54,168,000, or 9.5%, partially offset by an increase in Residential property operating expenses of $12,713,000, or 7.1%.

First Quarter 2023 Development Highlights

At March 31, 2023, we owned or held a direct or indirect interest in:

•18 wholly-owned communities under construction, which are expected to contain 5,762 apartment homes with a projected total capitalized cost of $2,360,000,000, and one unconsolidated community under construction, which is expected to contain 475 apartment homes with a projected total capitalized cost of $288,000,000.

22

•Land or rights to land on which we expect to develop an additional 41 apartment communities that, if developed as expected, will contain 14,290 apartment homes and will be developed for an aggregate projected total capitalized cost of $6,415,000,000.

Communities Overview

Our real estate investments consist primarily of current operating apartment communities ("Current Communities"), consolidated and unconsolidated communities in various stages of development ("Development" communities and "Unconsolidated Development" communities) and Development Rights (as defined below). Our Current Communities are further classified as Same Store communities, Other Stabilized communities, Redevelopment communities and Unconsolidated communities. While we generally establish the classification of communities on an annual basis, we update the classification of communities during the calendar year to the extent that our plans with regard to the disposition or redevelopment of a community change. The following is a description of each category:

Current Communities are categorized as Same Store, Other Stabilized, Redevelopment, or Unconsolidated according to the following attributes:

•Same Store is composed of consolidated communities where a comparison of operating results from the prior year to the current year is meaningful as these communities were owned and had stabilized occupancy as of the beginning of the respective prior year period. For the three month periods ended March 31, 2023 and 2022, Same Store communities are consolidated for financial reporting purposes, had stabilized occupancy as of January 1, 2022, are not conducting or are not probable to conduct substantial redevelopment activities and are not held for sale as of March 31, 2023 or probable for disposition to unrelated third parties within the current year. A community is considered to have stabilized occupancy at the earlier of (i) attainment of 90% physical occupancy or (ii) the one-year anniversary of completion of development or redevelopment.

•Other Stabilized is composed of completed consolidated communities that we own and that are not Same Store but which have stabilized occupancy, as defined above, as of January 1, 2023, or which were acquired subsequent to January 1, 2022. Other Stabilized excludes communities that are conducting or are probable to conduct substantial redevelopment activities within the current year, as defined below.

•Redevelopment is composed of consolidated communities where substantial redevelopment is in progress or is probable to begin during the current year. Redevelopment is considered substantial when (i) capital invested is expected to exceed the lesser of $5,000,000 or 10% of the community's pre-redevelopment basis and (ii) physical occupancy is below or is expected to be below 90% during, or as a result of, the redevelopment activity.

•Unconsolidated is composed of communities that we have an indirect ownership interest in through our investment interest in an unconsolidated joint venture.

Development is composed of consolidated communities that are either currently under construction, were under construction and were completed during the current year or where construction has been complete for less than one year and that did not have stabilized occupancy as of January 1, 2023. These communities may be partially or fully complete and operating.

Unconsolidated Development is composed of communities that are either currently under construction, or were under construction and were completed during the current year, in which we have an indirect ownership interest through our investment interest in an unconsolidated joint venture. These communities may be partially or fully complete and operating.

Development Rights are development opportunities in the early phase of the development process where we either have an option to acquire land or enter into a leasehold interest, where we are the buyer under a long-term conditional contract to purchase land, where we control the land through a ground lease or own land to develop a new community, or where we are the designated developer in a public-private partnership. We capitalize related pre-development costs incurred in pursuit of new developments for which we currently believe future development is probable.

We currently lease our corporate headquarters located in Arlington, Virginia, as well as our other regional and administrative offices, under operating leases.

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As of March 31, 2023, communities that we owned or held a direct or indirect interest in were classified as follows:

	Number of communities	Number of apartment homes
Current Communities
Same Store:
New England	40	9,871
Metro NY/NJ	42	12,995
Mid-Atlantic	40	13,570
Southeast Florida	7	2,187
Denver, CO	4	1,086
Pacific Northwest	20	5,474
Northern California	40	12,133
Southern California	58	17,277
Other Expansion Regions	4	925
Total Same Store	255	75,518
Other Stabilized:
New England	1	350
Metro NY/NJ	—	—
Mid-Atlantic	3	1,181
Southeast Florida	1	650
Denver, CO	2	453
Pacific Northwest	—	—
Northern California	1	195
Southern California	1	653
Other Expansion Regions	2	456
Total Other Stabilized	11	3,938
Redevelopment	1	714
Unconsolidated	8	2,247
Total Current	275	82,417
Development	19	5,934
Unconsolidated Development	1	475
Total Communities	295	88,826
Development Rights	41	14,290

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Results of Operations

Our year-over-year operating performance is primarily affected by both overall and individual geographic market conditions and apartment fundamentals and is reflected in changes in Same Store NOI; NOI derived from acquisitions, development completions and development under construction and in lease-up; loss of NOI related to disposed communities; and capital market and financing activity. A comparison of our operating results for the three months ended March 31, 2023 and 2022 is as follows (unaudited, dollars in thousands).

	For the three months ended March 31,				March 31, 2023 vs. 2022
	2023		2022		$ Change		% Change
Revenue:
Rental and other income	$	673,642	$	613,175	$	60,467	9.9	%
Management, development and other fees	1,066		752		314		41.8	%
Total revenue	674,708		613,927		60,781		9.9	%
Expenses:
Direct property operating expenses, excluding property taxes	132,981		122,461		10,520		8.6	%
Property taxes	74,495		70,738		3,757		5.3	%
Total community operating expenses	207,476		193,199		14,277		7.4	%
Corporate-level property management and other indirect operating expenses	(31,851)		(28,851)		(3,000)		10.4	%
Expensed transaction, development and other pursuit costs, net of recoveries	(2,992)		(987)		(2,005)		203.1	%
Interest expense, net	(56,821)		(56,526)		(295)		0.5	%
Depreciation expense	(204,743)		(201,786)		(2,957)		1.5	%
General and administrative expense	(20,400)		(17,421)		(2,979)		17.1	%
Casualty loss	(5,051)		—		(5,051)		(100.0)	%
Income from unconsolidated investments	4,845		317		4,528		N/A (1)
(Loss) gain on sale of communities	(13)		148,800		(148,813)		N/A (1)
Other real estate activity	129		273		(144)		(52.7)	%
Income before income taxes	150,335		264,547		(114,212)		(43.2)	%
Income tax expense	(3,560)		(2,471)		(1,089)		44.1	%
Net income	146,775		262,076		(115,301)		(44.0)	%
Net loss (income) attributable to noncontrolling interests	127		(32)		159		N/A (1)
Net income attributable to common stockholders	$	146,902	$	262,044	$	(115,142)	(43.9)	%

_________________________

(1)Percent change is not meaningful.

Net income attributable to common stockholders decreased $115,142,000, or 43.9%, to $146,902,000 for the three months ended March 31, 2023, as compared to the prior year period, primarily due to decreases in real estate sales and related gains, partially offset by an increase in NOI from communities, over the prior year period.

NOI is considered by management to be an important and appropriate supplemental performance measure to net income because it helps both investors and management to understand the core operations of a community or communities prior to the allocation of any corporate-level or financing-related costs. NOI reflects the operating performance of a community and allows for an easier comparison of the operating performance of individual assets or groups of assets. In addition, because prospective buyers of real estate have different financing and overhead structures, with varying marginal impact to overhead as a result of acquiring real estate, NOI is considered by many in the real estate industry to be a useful measure for determining the value of a real estate asset or group of assets. We define NOI as total property revenue less direct property operating expenses (including property taxes), and excluding corporate-level income (including management, development and other fees), corporate-level property management and other indirect operating expenses, expensed transaction, development and other pursuit costs, net of recoveries, interest expense, net, loss on extinguishment of debt, net, general and administrative expense, income from unconsolidated investments, depreciation expense, income tax expense, casualty loss, loss (gain) on sale of communities, other real estate activity and net operating income from real estate assets sold or held for sale.

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NOI does not represent cash generated from operating activities in accordance with GAAP, and NOI should not be considered an alternative to net income as an indication of our performance. NOI should also not be considered an alternative to net cash flow from operating activities, as determined by GAAP, as a measure of liquidity, nor is NOI indicative of cash available to fund cash needs. Residential NOI represents results attributable to our apartment rental operations, including parking and other ancillary residential revenue. Reconciliations of NOI and Residential NOI for the three months ended March 31, 2023 and 2022 to net income for each period are as follows (unaudited, dollars in thousands):

	For the three months ended March 31,
	2023		2022
Net income	$	146,775	$	262,076
Property management and other indirect operating expenses, net of corporate income	30,784		28,113
Expensed transaction, development and other pursuit costs, net of recoveries	2,992		987
Interest expense, net	56,821		56,526
General and administrative expense	20,400		17,421
Income from unconsolidated investments	(4,845)		(317)
Depreciation expense	204,743		201,786
Income tax expense	3,560		2,471
Casualty loss	5,051		—
Loss (gain) on sale of communities	13		(148,800)
Other real estate activity	(129)		(273)
Net operating income from real estate assets sold or held for sale	(1,126)		(10,277)
NOI	465,039		409,713
Commercial NOI (1)	(8,753)		(8,224)
Residential NOI	$	456,286	$	401,489

_________________________

(1)Represents results attributable to the commercial and other non-residential operations at our communities ("Commercial").

The Residential NOI changes for the three months ended March 31, 2023 as compared to the three months ended March 31, 2022 consist of changes in the following categories (unaudited, dollars in thousands):

	For the three months ended
	March 31, 2023
Same Store	$	41,569
Other Stabilized	10,894
Development / Redevelopment	2,334
Total	$	54,797

The increase in our Same Store Residential NOI for the three months ended March 31, 2023 is due to an increase in Residential rental revenue of $54,168,000, or 9.5%, partially offset by an increase in Residential property operating expenses of $12,713,000, or 7.1%, over the prior year period.

Rental and other income increased $60,467,000, or 9.9%, for the three months ended March 31, 2023, compared to the prior year period, primarily due to the increased rental revenue from our stabilized wholly-owned communities, discussed below.

Consolidated Communities — The weighted average number of occupied apartment homes for consolidated communities increased to 77,482 apartment homes for the three months ended March 31, 2023, compared to 77,081 homes for the prior year period. The weighted average monthly rental revenue per occupied apartment home increased to $2,892 for the three months ended March 31, 2023 compared to $2,648 in the prior year period.

The following table presents the change in Same Store Residential rental revenue, including the attribution of the change between average rental revenue per occupied home and Economic Occupancy (as defined below) for the three months ended March 31, 2023 (unaudited, dollars in thousands).

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	For the three months ended March 31,
	Residential rental revenue										Average rental revenue per occupied home							Economic Occupancy (1)
					$ Change			% Change							% Change					% Change
	2023		2022			2023 to 2022			2023 to 2022		2023		2022			2023 to 2022		2023		2022		2023 to 2022
New England	$	92,278	$	82,737		$	9,541		11.5	%	$	3,226	$	2,880		12.0	%	96.6	%	97.1	%	(0.5)	%
Metro NY/NJ	130,852		117,161			13,691			11.7	%	3,495		3,111			12.3	%	96.0	%	96.6	%	(0.6)	%
Mid-Atlantic	91,456		84,596			6,860			8.1	%	2,356		2,179			8.1	%	95.4	%	95.4	%	—	%
Southeast Florida	18,441		15,722			2,719			17.3	%	2,887		2,477			16.6	%	97.3	%	96.6	%	0.7	%
Denver, CO	6,846		6,314			532			8.4	%	2,211		2,032			8.8	%	95.1	%	95.5	%	(0.4)	%
Pacific Northwest	41,456		37,504			3,952			10.5	%	2,646		2,383			11.0	%	95.4	%	95.9	%	(0.5)	%
Northern California	104,214		95,954			8,260			8.6	%	2,969		2,745			8.2	%	96.4	%	96.0	%	0.4	%
Southern California	131,236		123,310			7,926			6.4	%	2,632		2,471			6.5	%	96.2	%	96.3	%	(0.1)	%
Other Expansion Regions	5,670		4,983			687			13.8	%	2,143		1,907			12.4	%	95.3	%	93.9	%	1.4	%
Total Same Store	$	622,449	$	568,281		$	54,168		9.5	%	$	2,859	$	2,608		9.6	%	96.1	%	96.2	%	(0.1)	%

_________________________________

(1) Economic Occupancy considers that apartment homes of different sizes and locations within a community have different economic impacts on a community's gross revenue. Economic Occupancy is defined as gross potential revenue less vacancy loss, as a percentage of gross potential revenue. Gross potential revenue is determined by valuing occupied homes at leased rates and vacant homes at market rents. Vacancy loss is determined by valuing vacant units at current market rents.

The following table details the increase in Same Store Residential rental revenue by component, for the three months ended March 31, 2023, compared to the prior year period (unaudited):

	For the three months ended
	March 31, 2023
Residential rental revenue
Lease rates	8.0	%
Concessions and other discounts	1.2	%
Economic Occupancy	(0.1)	%
Other rental revenue	0.9	%
Uncollectible lease revenue (excluding rent relief)	(2.0)	%
Rent relief	1.5	%
Total Residential rental revenue	9.5	%

The increase for Same Store Residential rental revenue for the three months ended March 31, 2023, compared to the prior year period, was impacted by (i) uncollectible lease revenue, net of amounts received from government rent relief programs and (ii) concessions.

Same Store uncollectible lease revenue increased for the three months ended March 31, 2023 by $2,843,000. The change in uncollectible lease revenue for the three months ended March 31, 2023 was impacted by amounts received from government rent relief programs. Adjusting to remove the impact of rent relief, uncollectible lease revenue as a percentage of Same Store Residential rental revenue decreased to 3.0% in the three months ended March 31, 2023 from 4.7% in the three months ended March 31, 2022. We recognized $3,056,000 and $14,235,000 from government rent relief programs for the three months ended March 31, 2023 and 2022, respectively.

Beginning in 2020 in conjunction with the COVID-19 pandemic (the "Pandemic"), we increased our use of residential concessions relative to concessions granted prior to 2020. Concessions granted for our Same Store portfolio remained slightly elevated relative to periods prior to 2020, with an increase in concessions for our Same Store communities granted in the three months ended March 31, 2023 over the prior year period of $956,000 to $3,591,000. We amortize concessions on a straight-line basis over the life of the respective leases (generally one year), reducing the income recognized over the lease term. For the three months ended March 31, 2023, amortized concessions decreased by $6,462,000 contributing to the increase in revenue as compared to

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the prior year period. The remaining net unamortized balance of Same Store residential concessions at March 31, 2023 was $6,736,000.

For approximately 15 years, we have used a revenue management system called Lease Rent Options (“LRO”) as part of our process for determining rental rates to offer at our communities, and we have not used any other third party revenue management system during this period. We originally contracted with The Rainmaker Group to license LRO for our use, and the LRO system was subsequently acquired by RealPage, Inc. in 2017. We have been named as a defendant in cases alleging antitrust violations by RealPage, Inc. and owners and/or operators of multifamily housing which utilize systems provided by RealPage, Inc. The complaints allege a conspiracy to artificially inflate rental rates for multifamily residential real estate above competitive levels. We believe that these cases are without merit as it pertains to us and our use of LRO, and we plan to vigorously defend the lawsuits.

Direct property operating expenses, excluding property taxes, increased $10,520,000, or 8.6%, for the three months ended March 31, 2023, compared to the prior year period, primarily due to the addition of newly developed apartment communities as well as increased operating expenses at our Same Store communities as discussed below.

Same Store Residential direct property operating expenses, excluding property taxes, represents substantially all of total Same Store operating expenses for the three months ended March 31, 2023. Same Store Residential direct property operating expenses, excluding property taxes, increased $9,735,000, or 8.5%, for the three months ended March 31, 2023, compared to the prior year period, primarily due to increased utilities, maintenance costs and bad debt associated with resident expense reimbursements.

Property taxes increased $3,757,000, or 5.3%, for the three months ended March 31, 2023, compared to the prior year period, primarily due to the addition of newly developed apartment communities, increased assessments for our stabilized portfolio and the expiration of property tax incentive programs primarily at certain of our properties in New York City, partially offset by decreased property taxes from dispositions.

Same Store Residential property taxes represents substantially all of total Same Store property taxes for the three months ended March 31, 2023. Same Store Residential property taxes increased $2,978,000, or 4.5%, for the three months ended March 31, 2023, compared to the prior year period, due to increased assessments across the portfolio and the expiration of property tax incentive programs primarily at certain of our properties in New York City.

Corporate-level property management and other indirect operating expenses increased $3,000,000, or 10.4%, for the three months ended March 31, 2023, compared to the prior year period, primarily due to increased compensation related costs as well as increased costs related to investments in technology and other initiatives to improve future efficiency in services for residents and prospects.

Expensed transaction, development and other pursuit costs, net of recoveries primarily reflect costs incurred for development pursuits not yet considered probable for development, as well as write downs and abandonment of Development Rights and costs related to abandoned acquisition and disposition pursuits, offset by any recoveries of costs incurred. In periods of increased acquisition pursuit activity, periods of economic downturn or when there is limited access to capital, these costs can be volatile and may vary significantly from year to year. In addition, the timing for potential recoveries will not always align with the timing for expensing an abandoned pursuit. Expensed transaction, development and other pursuit costs, net of recoveries, increased $2,005,000 for the three months ended March 31, 2023, compared to the prior year period.

Depreciation expense increased $2,957,000, or 1.5%, for the three months ended March 31, 2023, compared to the prior year period, primarily due to the addition of newly developed apartment communities, partially offset by dispositions.

General and administrative expense increased $2,979,000, or 17.1%, for the three months ended March 31, 2023, as compared to the prior year period, primarily due to an increase in compensation related expenses, including severance, coupled with a legal recovery that was recognized in the prior year period not present in the current year period.

Casualty loss was $5,051,000 for the three months ended March 31, 2023 due to charges recognized for the damages across certain of our communities in our Northeast and California regions related to severe weather.

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Income from unconsolidated investments increased $4,528,000 for the three months ended March 31, 2023, compared to the prior year period, primarily due to unrealized gains on property technology investments recognized in the current year period.

(Loss) gain on sale of communities decreased $148,813,000 for the three months ended March 31, 2023, compared to the prior year period. The amount of gain realized in a given period depends on many factors, including the number of communities sold, the size and carrying value of the communities sold and the market conditions in the local area. The gain of $148,800,000 for the three months ended March 31, 2022 was primarily due to the sale of three wholly-owned communities.

Income tax expense for the three months ended March 31, 2023 and 2022 is an expense of $3,560,000 and $2,471,000, respectively, primarily related to The Park Loggia.

Non-GAAP Financial Measures - Reconciliation of FFO and Core FFO

FFO and FFO adjusted for non-core items, or “Core FFO,” as defined below, are generally considered by management to be appropriate supplemental measures of our operating and financial performance.

Consistent with the definition adopted by the Board of Governors of the National Association of Real Estate Investment Trusts® ("Nareit"), we calculate Funds from Operations Attributable to Common Stockholders ("FFO") as net income or loss attributable to common stockholders computed in accordance with GAAP, adjusted for:

•gains or losses on sales of previously depreciated operating communities;

•cumulative effect of change in accounting principle;

•impairment write-downs of depreciable real estate assets;

•write-downs of investments in affiliates due to a decrease in the value of depreciable real estate assets held by those affiliates;

•depreciation of real estate assets; and

•similar adjustments for unconsolidated partnerships and joint ventures, including those from a change in control.

FFO can help with the comparison of the operating and financial performance of a real estate company between periods or as compared to different companies because the adjustments such as (i) excluding gains or losses on sales of previously depreciated property or (ii) real estate depreciation may impact comparability as the amount and timing of these or similar items can vary among owners of identical assets in similar condition based on historical cost accounting and useful life estimates. By further adjusting for items that we do not consider part of our core business operations, Core FFO can help with the comparison of our core operating performance year over year. We believe that, in order to understand our operating results, FFO and Core FFO should be considered in conjunction with net income as presented in the Condensed Consolidated Statements of Comprehensive Income included elsewhere in this report.

We calculate Core FFO as FFO, adjusted for:

•joint venture gains (if not adjusted through FFO), non-core costs and promoted interests from partnerships;

•casualty and impairment losses or gains, net on non-depreciable real estate or other investments;

•gains or losses from early extinguishment of consolidated borrowings;

•expensed transaction, development and other pursuit costs, net of recoveries;

•third-party business interruption insurance proceeds and the related lost NOI that is covered by the expected third party business interruption insurance proceeds;

•property and casualty insurance proceeds and legal settlement activity;

•gains or losses on sales of assets not subject to depreciation and other investment gains or losses;

•advocacy contributions, representing payments to promote our business interests;

•hedge ineffectiveness or gains or losses from derivatives not designated as hedges for accounting purposes;

•expected credit losses associated with the lending commitments under the SIP;

•severance related costs;

•executive transition compensation costs;

•net for-sale condominium activity, including gains, marketing, operating and administrative costs and imputed carry cost; and

•income taxes.

FFO and Core FFO do not represent net income in accordance with GAAP, and therefore should not be considered an alternative to net income, which remains the primary measure, as an indication of our performance. In addition, FFO and Core FFO as calculated by other REITs may not be comparable to our calculations of FFO and Core FFO.

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The following is a reconciliation of net income attributable to common stockholders to FFO attributable to common stockholders and to Core FFO attributable to common stockholders (unaudited, dollars in thousands, except per share amounts):

	For the three months ended March 31,
	2023		2022
Net income attributable to common stockholders	$	146,902	$	262,044
Depreciation - real estate assets, including joint venture adjustments	203,280		200,652
Distributions to noncontrolling interests	12		12
Loss (gain) on sale of previously depreciated real estate	13		(148,800)
Casualty loss on real estate	5,051		—
FFO attributable to common stockholders	355,258		313,908
Adjusting items:
Unconsolidated entity gains, net (1)	(3,056)		(255)
Structured Investment Program loan reserve (2)	(19)		—
Hedge accounting activity	228		(729)
Advocacy contributions	—		150
Executive transition compensation costs	347		402
Severance related costs	1,173		41
Expensed transaction, development and other pursuit costs, net of recoveries	2,451		159
Other real estate activity	(129)		(273)
For-sale condominium imputed carry cost (3)	255		919
Legal settlements	(98)		130
Income tax expense (4)	3,560		2,471
Core FFO attributable to common stockholders	$	359,970	$	316,923
Weighted average common shares outstanding - diluted	140,023,810		139,976,082
EPS per common share - diluted	$	1.05	$	1.87
FFO per common share - diluted	$	2.54	$	2.24
Core FFO per common share - diluted	$	2.57	$	2.26

_________________________

(1)Amounts consist primarily of net unrealized gains on technology investments.

(2)Amounts are the expected credit losses associated with the lending commitments under our SIP. The timing and amount of actual losses that will be incurred, if any, is to be determined.

(3)Represents the imputed carry cost of for-sale residential condominiums at The Park Loggia. We computed this adjustment by multiplying the total capitalized cost of completed and unsold for-sale residential condominiums by our weighted average unsecured debt rate.

(4)Amounts are primarily for the recognition of taxes associated with The Park Loggia.

FFO and Core FFO also do not represent cash generated from operating activities in accordance with GAAP, and therefore should not be considered an alternative to net cash flows from operating activities, as determined by GAAP, as a measure of liquidity. Additionally, it is not necessarily indicative of cash available to fund cash needs.

Liquidity and Capital Resources

We employ a disciplined approach to our liquidity and capital management. When we source capital, we take into account both our view of the most cost effective alternative available and our desire to maintain a balance sheet that provides us with flexibility. Our principal focus on near-term and intermediate-term liquidity is to ensure we have adequate capital to fund:

•development and redevelopment activity in which we are currently engaged or in which we plan to engage;

•the minimum dividend payments on our common stock required to maintain our REIT qualification under the Code;

•debt service and principal payments either at maturity or opportunistically before maturity;

•normal recurring operating and corporate overhead expenses; and

•investment in our operating platform, including strategic investments.

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Factors affecting our liquidity and capital resources are our cash flows from operations, financing activities and investing activities (including dispositions) as well as general economic and market conditions. Cash flows from operations are determined by operating activities and factors including but not limited to (i) the number of apartment homes currently owned, (ii) rental rates, (iii) occupancy levels, (iv) uncollectible lease revenue levels or interruptions in collections caused by market conditions and (v) operating expenses with respect to apartment homes. The timing and type of capital markets activity in which we engage is affected by changes in the capital markets environment, such as changes in interest rates or the availability of cost-effective capital. Our plans for development, redevelopment, non-routine capital expenditure, acquisition and disposition activity are affected by market conditions and capital availability. We frequently review our liquidity needs, especially in periods with volatile market conditions, as well as the adequacy of cash flows from operations and other expected liquidity sources to meet these needs.

We had cash, cash equivalents and cash in escrow of $376,064,000 at March 31, 2023, a decrease of $358,181,000 from $734,245,000 at December 31, 2022. The following discussion relates to changes in cash, cash equivalents and cash in escrow due to operating, investing and financing activities.

A presentation of GAAP based cash flow metrics is as follows (unaudited, dollars in thousands):

	For the three months ended March 31,				March 31, 2023 vs. 2022
	2023		2022
Net cash provided by operating activities	$	396,118	$	343,680	$	52,438
Net cash used in investing activities	$	(267,339)	$	(90,200)	$	(177,139)
Net cash used in financing activities	$	(486,960)	$	(339,857)	$	(147,103)

•Net cash provided by operating activities increased primarily due to increases in rental income.

•Net cash used in investing activities was primarily due to (i) investment of $229,361,000 in the development and redevelopment of communities and (ii) capital expenditures of $34,482,000 for our wholly-owned communities and non-real estate assets.

•Net cash used in financing activities was primarily due to (i) the repayment of the $250,000,000 fixed rate unsecured notes and (ii) payment of cash dividends in the amount of $223,465,000.

Commercial Paper Program

In March 2022, we established the Commercial Paper Program. Under the terms of the Commercial Paper Program, we may issue, from time to time, unsecured commercial paper notes with varying maturities of less than one year. Amounts available under the Commercial Paper Program may be issued, repaid and re-issued from time to time, with the maximum aggregate face or principal amount outstanding at any one time not to exceed $500,000,000. The Commercial Paper Program is backstopped by our commitment to maintain available borrowing capacity under the Credit Facility in an amount equal to actual borrowings under the Commercial Paper Program. As of April 28, 2023, we did not have any amounts outstanding under the Commercial Paper Program.

Variable Rate Unsecured Credit Facility

The $2,250,000,000 Credit Facility matures in September 2026. The interest rate that would be applicable to borrowings under the Credit Facility is 5.64% at April 28, 2023 and is composed of (i) SOFR, applicable to the period of borrowing for a particular draw of funds from the facility (e.g., one month to maturity, three months to maturity, etc.), plus (ii) the current borrowing spread to SOFR of 0.825% per annum, which consists of a 0.10% SOFR adjustment plus 0.725% per annum, assuming a one month term SOFR borrowing rate. The borrowing spread to SOFR can vary from SOFR plus 0.65% to SOFR plus 1.40% based upon the rating of our unsecured and unsubordinated long-term indebtedness. There is also an annual facility commitment fee of 0.125% of the borrowing capacity under the facility, which can vary from 0.10% to 0.30% based upon the rating of our unsecured and unsubordinated long-term indebtedness. The Credit Facility contains a sustainability-linked pricing component which provides for interest rate margin and commitment fee reductions or increases by meeting or missing targets related to environmental sustainability, specifically greenhouse gas emission reductions, with the adjustment determined annually beginning in July 2023.

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We did not have any borrowings outstanding under the Credit Facility and, after taking into account the $1,914,000 outstanding in letters of credit, we had $2,248,086,000 available under the Credit Facility as of April 28, 2023. We had $51,132,000 outstanding in additional letters of credit unrelated to the Credit Facility as of April 28, 2023.

Financial Covenants

We are subject to financial covenants contained in the Credit Facility and the Commercial Paper Program, Term Loan and the indentures under which our unsecured notes were issued. The principal financial covenants include the following:

•limitations on the amount of total and secured debt in relation to our overall capital structure;

•limitations on the amount of our unsecured debt relative to the undepreciated basis of real estate assets that are not encumbered by property-specific financing; and

•minimum levels of debt service coverage.

We were in compliance with these covenants at March 31, 2023.

In addition, some of our secured borrowings include yield maintenance, defeasance, or prepayment penalty provisions, which would result in us incurring an additional charge in the event of a full or partial prepayment of outstanding principal before the scheduled maturity. These provisions in our secured borrowings are generally consistent with other similar types of debt instruments issued during the same time period in which our borrowings were secured.

Continuous Equity Offering Program

In May 2019, we commenced CEP V under which we may sell (and/or enter into forward sale agreements for the sale of) up to $1,000,000,000 of our common stock from time to time. Actual sales will depend on a variety of factors to be determined, including market conditions, the trading price of our common stock and our determinations of the appropriate funding sources. We engaged sales agents for CEP V who receive compensation of up to 1.5% of the gross sales price for shares sold. We expect that, if entered into, we will physically settle each forward sale agreement on one or more dates prior to the maturity date of that particular forward sale agreement and to receive aggregate net cash proceeds at settlement equal to the number of shares underlying the particular forward agreement multiplied by the forward sale price. However, we may also elect to cash settle or net share settle a forward sale agreement. In connection with each forward sale agreement, we will pay the forward seller, in the form of a reduced initial forward sale price, a commission of up to 1.5% of the sales prices of all borrowed shares of common stock sold. During the three months ended March 31, 2023 and through April 28, 2023, we did not have any sales under this program. As of April 28, 2023, we had $705,961,000 remaining authorized for issuance under this program.

Forward Equity Offering

In addition to CEP V, during April 2023, we settled the Equity Forward, issuing 2,000,000 shares of common stock, net of offering fees and discounts, for $491,912,000 or $245.96 per share.

Interest Rate Swap Agreements

During the three months ended March 31, 2023, we entered into $200,000,000 of new forward interest rate swap agreements executed to reduce the impact of variability in interest rates on a portion of our anticipated future debt issuance activity. In April 2023, we entered into an additional $50,000,000 of new forward interest rate swap agreements executed to reduce the impact of variability in interest rates on a portion of our anticipated future debt issuance activity. We expect to cash settle the swaps and either pay or receive cash for the then current fair value. Assuming that we issue the debt as expected, the hedging impact from these positions will then be recognized over the life of the issued debt as a yield adjustment.

Stock Repurchase Program

In July 2020, our Board of Directors approved the 2020 Stock Repurchase Program. Purchases of common stock under the 2020 Stock Repurchase Program may be exercised at our discretion with the timing and number of shares repurchased depending on a variety of factors including price, corporate and regulatory requirements and other corporate liquidity requirements and priorities. The 2020 Stock Repurchase Program does not have an expiration date and may be suspended or terminated at any time without prior notice. During the three months ended March 31, 2023, we repurchased 7,000 shares of common stock at an average price of $161.29 per share. In April 2023 through April 28, 2023, we repurchased 4,800 additional shares of common stock at an average price of $162.93 per share. As of April 28, 2023, we had $314,237,000 remaining authorized for purchase under this program.

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Future Financing and Capital Needs — Debt Maturities and Material Obligations

One of our principal long-term liquidity needs is the repayment of long-term debt at maturity. For both our unsecured and secured notes, a portion of the principal of these notes may be repaid prior to maturity. Early retirement of our unsecured or secured notes could result in gains or losses on extinguishment. If we do not have funds on hand sufficient to repay our indebtedness as it becomes due, it will be necessary for us to refinance or otherwise provide liquidity to satisfy the debt at maturity. This refinancing may be accomplished by uncollateralized private or public debt offerings, equity issuances, additional debt financing that is secured by mortgages on individual communities or groups of communities or borrowings under our Credit Facility or Commercial Paper Program. In addition, to the extent we have amounts outstanding under the Commercial Paper Program, we are obligated to repay the short-term indebtedness at maturity through either current cash on hand or by incurring other indebtedness, including by way of borrowing under our Credit Facility. Although we believe we will have the capacity to meet our currently anticipated liquidity needs, we cannot assure you that capital from additional debt financing or debt or equity offerings will be available or, if available, that they will be on terms we consider satisfactory.

During the three months ended March 31, 2023, we repaid $250,000,000 principal amount of our 2.85% unsecured notes upon maturity.

The following table details our consolidated debt obligations, including the effective interest rate and contractual maturity dates, and principal payments for periodic amortization and maturities for the next five years, excluding our Credit Facility and Commercial Paper Program and amounts outstanding related to communities classified as held for sale, for debt outstanding at March 31, 2023 and December 31, 2022 (dollars in thousands). We are not directly or indirectly (as borrower or guarantor) obligated in any material respect to pay principal or interest on the indebtedness of any unconsolidated entities in which we have an equity or other interest other than as disclosed related to the AVA Arts District construction loan (see "Unconsolidated Investments - Development Communities" for further discussion of the construction loan).

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	All-In interest rate (1)		Principal maturity date		Balance Outstanding (2)				Scheduled Maturities
					12/31/2022		3/31/2023		2023		2024		2025		2026		2027		Thereafter
Tax-exempt bonds
Variable rate
Avalon Acton	5.01	%	Jul-2040	(3)	$	45,000	$	45,000	$	—	$	—	$	—	$	—	$	—	$	45,000
Avalon Clinton North	5.66	%	Nov-2038	(3)	147,000		147,000		—		—		—		—		700		146,300
Avalon Clinton South	5.66	%	Nov-2038	(3)	121,500		121,500		—		—		—		—		600		120,900
Avalon Midtown West	5.60	%	May-2029	(3)	82,700		82,700		6,100		6,800		7,300		8,100		8,800		45,600
Avalon San Bruno I	5.55	%	Dec-2037	(3)	60,950		60,050		1,300		2,300		2,400		2,500		2,800		48,750
					457,150		456,250		7,400		9,100		9,700		10,600		12,900		406,550
Conventional loans
Fixed rate
$250 million unsecured notes	—	%	Mar-2023	(4)	250,000		—		—		—		—		—		—		—
$350 million unsecured notes	4.30	%	Dec-2023		350,000		350,000		350,000		—		—		—		—		—
$300 million unsecured notes	3.66	%	Nov-2024		300,000		300,000		—		300,000		—		—		—		—
$525 million unsecured notes	3.55	%	Jun-2025		525,000		525,000		—		—		525,000		—		—		—
$300 million unsecured notes	3.62	%	Nov-2025		300,000		300,000		—		—		300,000		—		—		—
$475 million unsecured notes	3.35	%	May-2026		475,000		475,000		—		—		—		475,000		—		—
$300 million unsecured notes	3.01	%	Oct-2026		300,000		300,000		—		—		—		300,000		—		—
$350 million unsecured notes	3.95	%	Oct-2046		350,000		350,000		—		—		—		—		—		350,000
$400 million unsecured notes	3.50	%	May-2027		400,000		400,000		—		—		—		—		400,000		—
$300 million unsecured notes	4.09	%	Jul-2047		300,000		300,000		—		—		—		—		—		300,000
$450 million unsecured notes	3.32	%	Jan-2028		450,000		450,000		—		—		—		—		—		450,000
$300 million unsecured notes	3.97	%	Apr-2048		300,000		300,000		—		—		—		—		—		300,000
$450 million unsecured notes	3.66	%	Jun-2029		450,000		450,000		—		—		—		—		—		450,000
$700 million unsecured notes	2.69	%	Mar-2030		700,000		700,000		—		—		—		—		—		700,000
$600 million unsecured notes	2.65	%	Jan-2031		600,000		600,000		—		—		—		—		—		600,000
$700 million unsecured notes	2.16	%	Jan-2032		700,000		700,000		—		—		—		—		—		700,000
$400 million unsecured notes	2.03	%	Dec-2028		400,000		400,000		—		—		—		—		—		400,000
$350 million unsecured notes	4.38	%	Feb-2033		350,000		350,000		—		—		—		—		—		350,000
Avalon Walnut Creek	4.00	%	Jul-2066		4,327		4,327		—		—		—		—		—		4,327
eaves Los Feliz	3.68	%	Jun-2027		41,400		41,400		—		—		—		—		41,400		—
eaves Woodland Hills	3.67	%	Jun-2027		111,500		111,500		—		—		—		—		111,500		—
Avalon Russett	3.77	%	Jun-2027		32,200		32,200		—		—		—		—		32,200		—
Avalon San Bruno III	2.38	%	Mar-2027		51,000		51,000		—		—		—		—		51,000		—
Avalon Cerritos	3.35	%	Aug-2029		30,250		30,250		—		—		—		—		—		30,250
					7,770,677		7,520,677		350,000		300,000		825,000		775,000		636,100		4,634,577
Variable rate
Term Loan - $150 million	5.91	%	Feb-2024		150,000		150,000		—		150,000		—		—		—		—
Total indebtedness - excluding Credit Facility and Commercial Paper					$	8,377,827	$	8,126,927	$	357,400	$	459,100	$	834,700	$	785,600	$	649,000	$	5,041,127

_________________________

(1)Rates are as of March 31, 2023 and include credit enhancement fees, facility fees, trustees' fees, the impact of interest rate hedges, offering costs, mark-to-market amortization and other fees.

(2)Balances outstanding represent total amounts due at maturity, and exclude deferred financing costs and debt discount for the unsecured notes of $46,279 and $47,695 as of March 31, 2023 and December 31, 2022, respectively, and deferred financing costs and debt discount associated with secured notes of $13,753 and $14,087 as of March 31, 2023 and December 31, 2022, respectively, as reflected on our Condensed Consolidated Balance Sheets included elsewhere in this report.

(3)Financed by variable rate debt, but interest rate is capped through an interest rate protection agreement.

(4)During 2023, we repaid this borrowing at its scheduled maturity date.

In addition to consolidated debt, we have scheduled contractual obligations associated with (i) ground leases for land underlying current operating or development communities and commercial and parking facilities and (ii) office leases for our corporate headquarters and regional offices. As of March 31, 2023, other than as discussed in this Form 10-Q, there have been no other material changes in our scheduled contractual obligations as disclosed in our Form 10-K.

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Future Financing and Capital Needs — Portfolio and Capital Markets Activity

We invest in various real estate and real estate related investments, which include (i) the acquisition, development and redevelopment of communities both wholly-owned and through the formation of joint ventures, (ii) other indirect investments in real estate through the SIP, all as discussed further below and (iii) investments in other real estate-related ventures through direct and indirect investments in property technology and environmentally focused companies and investment management funds.

In 2023, in addition to the settlement of the Equity Forward, we expect to continue to meet our liquidity needs from one or more of a variety of internal and external sources, which may include (i) real estate dispositions, (ii) cash balances on hand as well as cash generated from our operating activities, (iii) borrowing capacity under the Credit Facility, (iv) borrowings under the Commercial Paper Program and (v) secured and unsecured debt financings. Additional sources of liquidity in 2023 may include the issuance of common and preferred equity, including the issuance of shares of our common stock under CEP V. Our ability to obtain additional financing will depend on a variety of factors, such as market conditions, the general availability of credit, the overall availability of credit to the real estate industry, our credit ratings and credit capacity, as well as the perception of lenders regarding our long or short-term financial prospects.

Before beginning new construction or reconstruction activity, including activity related to communities owned by unconsolidated joint ventures, we plan to source sufficient capital to complete these undertakings, although we cannot assure you that we will be able to obtain such financing. In the event that financing cannot be obtained, we may abandon Development Rights, write-off associated pre-development costs that were capitalized and/or forego reconstruction activity. In such instances, we will not realize the increased revenues and earnings that we expected from such Development Rights or reconstruction activity and significant losses could be incurred.

From time to time we use joint ventures to hold or develop individual real estate assets. We generally employ joint ventures to mitigate asset concentration or market risk and secondarily as a source of liquidity. We may also use joint ventures related to mixed-use land development opportunities and new markets where our partners bring development and operational expertise and/or experience to the venture. Each joint venture or partnership agreement has been individually negotiated, and our ability to operate and/or dispose of a community in our sole discretion may be limited to varying degrees depending on the terms of the joint venture or partnership agreement. We cannot assure you that we will achieve our objectives through joint ventures.

In addition, we may invest, through mezzanine loans or other preferred equity investments, in multifamily development projects being undertaken by third parties. In these cases, we do not expect to acquire the underlying real estate but rather to earn a return on our investment (through interest or fixed rate preferred equity returns) and a return of the invested capital generally following completion of construction either on or before a set due date.

In evaluating our allocation of capital within our markets, we sell assets that do not meet our long-term investment criteria or when capital and real estate markets allow us to realize a portion of the value created over our ownership periods and redeploy the proceeds from those sales to develop and redevelop communities. Because the proceeds from the sale of communities may not be immediately redeployed into revenue generating assets that we develop, redevelop or acquire, the immediate effect of a sale of a community for a gain is to increase net income, but reduce future total revenues, total expenses and NOI until such time as the proceeds have been redeployed into revenue generating assets. We believe that the temporary absence of future cash flows from communities sold will not have a material impact on our ability to fund future liquidity and capital resource needs.

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Unconsolidated Real Estate Investments and Off-Balance Sheet Arrangements

Unconsolidated Investments - Operating Communities

As of March 31, 2023, we had investments in the following unconsolidated real estate entities accounted for under the equity method of accounting, excluding development joint ventures. See Note 5, "Investments," of the Condensed Consolidated Financial Statements included elsewhere in this report. For joint ventures holding operating apartment communities as of March 31, 2023, detail of the real estate and associated indebtedness underlying our unconsolidated investments is presented in the following table (dollars in thousands).

	Company  ownership percentage		# of apartment homes	Total capitalized cost		Debt (1)
						Principal Amount			Interest rate		Maturity date
Unconsolidated Real Estate Investments								Type
NYTA MF Investors, LLC
1. Avalon Bowery Place I - New York, NY			206	$	214,476	$	93,800	Fixed	4.01	%	Jan 2029
2. Avalon Bowery Place II - New York, NY			90	91,298		39,639		Fixed	4.01	%	Jan 2029
3. Avalon Morningside - New York, NY (2)			295	211,586		111,750		Fixed	3.55	%	Jan 2029/May 2046
4. Avalon West Chelsea - New York, NY (3)			305	128,938		66,000		Fixed	4.01	%	Jan 2029
5. AVA High Line - New York, NY (3)			405	122,213		84,000		Fixed	4.01	%	Jan 2029
Total NYTA MF Investors, LLC	20.0	%	1,301	768,511		395,189			3.88	%
Other Operating Joint Ventures
1. MVP I, LLC - Avalon at Mission Bay II -     San Francisco, CA	25.0	%	313	129,404		103,000		Fixed	3.24	%	Jul 2025
2. Brandywine Apartments of Maryland, LLC -     Brandywine - Washington, D.C.	28.7	%	305	19,670		19,566		Fixed	3.40	%	Jun 2028
3. Avalon Alderwood MF Member, LLC -     Avalon Alderwood Place - Lynnwood, WA	50.0	%	328	108,727		—		N/A	N/A		N/A
Total Other Joint Ventures			946	257,801		122,566			3.27	%
Total Unconsolidated Investments (4)			2,247	$	1,026,312	$	517,755		3.73	%

_____________________________

(1)We have not guaranteed the debt of these unconsolidated investees and bear no responsibility for the repayment unless otherwise disclosed.

(2)Borrowing on this community is comprised of two mortgage loans. The interest rate is the weighted average interest rate as of March 31, 2023.

(3)Borrowing on this dual-branded community is comprised of a single mortgage loan. This dual-branded community is subject to a leasehold interest which is not included in the total capitalized cost.

(4)In addition to leasehold assets, there were net other assets of $54,295 as of March 31, 2023 associated with our unconsolidated real estate investments which are primarily cash and cash equivalents.

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Unconsolidated Investments - Development Communities

The following table presents a summary of the Unconsolidated Development Communities.

Unconsolidated  Development Community		Company  ownership percentage		# of apartment homes	Projected total capitalized cost (1) ($ millions)		Construction start	Initial projected occupancy	Estimated completion
1.	AVA Arts District (2)(3) Los Angeles, CA	25.0	%	475	$	288	Q3 2020	Q3 2023	Q4 2023

_____________________________

(1)Projected total capitalized cost includes all capitalized costs projected to be incurred to develop the respective Unconsolidated Development Community, determined in accordance with GAAP, including land acquisition costs, construction costs, real estate taxes, capitalized interest and loan fees, permits, professional fees and other regulatory fees, as well as costs incurred for first generation commercial tenants such as tenant improvements and leasing commissions. Projected total capitalized cost is the total projected joint venture amount.

(2)AVA Arts District is expected to contain 56,000 square feet of commercial space.

(3)As of March 31, 2023, we had contributed our full expected equity investment in AVA Arts District of $31,139. The remaining development costs are expected to be funded by the venture's variable rate construction loan. The venture had drawn $99,130 of the $167,147 maximum borrowing capacity of the construction loan as of March 31, 2023. While we guarantee the construction loan on behalf of the venture, any amounts under the guarantee are obligations of the venture partners in proportion to ownership interest.

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Development Communities

As of March 31, 2023, we owned or held a direct interest in 18 Development Communities under construction. We expect these Development Communities, when completed, to add a total of 5,762 apartment homes and 56,000 square feet of commercial space to our portfolio for a total capitalized cost, including land acquisition costs, of approximately $2,360,000,000. We cannot assure you that we will meet our schedule for construction completion or that we will meet our budgeted costs, either individually, or in the aggregate.

The following table presents a summary of the Development Communities.

		Number of apartment homes	Projected total capitalized cost (1) ($ millions)		Construction start	Initial projected or actual occupancy	Estimated completion	Estimated stabilized operations (2)
1.	Avalon Harrison (3) Harrison, NY	143	$	94	Q4 2018	Q3 2021	Q2 2023	Q4 2023
2.	Avalon Somerville Station Somerville, NJ	374	122		Q4 2020	Q2 2022	Q3 2023	Q1 2024
3.	Avalon North Andover North Andover, MA	221	78		Q2 2021	Q4 2022	Q3 2023	Q4 2023
4.	Avalon Brighton Boston, MA	180	89		Q2 2021	Q1 2023	Q2 2023	Q4 2023
5.	Avalon Merrick Park (4) Miami, FL	254	102		Q2 2021	Q2 2023	Q3 2023	Q2 2024
6.	Avalon Amityville Amityville, NY	338	135		Q2 2021	Q2 2023	Q2 2024	Q4 2024
7.	Avalon Bothell Commons I Bothell, WA	467	236		Q2 2021	Q3 2023	Q3 2024	Q2 2025
8.	Avalon Westminster Promenade Westminster, CO	312	110		Q3 2021	Q1 2024	Q2 2024	Q1 2025
9.	Avalon West Dublin Dublin, CA	499	270		Q3 2021	Q4 2023	Q1 2025	Q2 2025
10.	Avalon Princeton Circle Princeton, NJ	221	88		Q4 2021	Q2 2023	Q1 2024	Q3 2024
11.	Avalon Montville Montville, NJ	349	127		Q4 2021	Q4 2023	Q3 2024	Q4 2024
12.	Avalon Redmond Campus (5) Redmond, WA	214	80		Q4 2021	Q4 2023	Q2 2024	Q4 2024
13.	Avalon Governor's Park Denver, CO	304	135		Q1 2022	Q2 2024	Q3 2024	Q2 2025
14.	Avalon West Windsor (3) West Windsor, NJ	535	201		Q2 2022	Q2 2025	Q3 2026	Q1 2027
15.	Avalon Durham (4) Durham, NC	336	125		Q2 2022	Q2 2024	Q3 2024	Q2 2025
16.	Avalon Annapolis Annapolis, MD	508	202		Q3 2022	Q3 2024	Q3 2025	Q2 2026
17.	Kanso Milford Milford, MA	162	65		Q4 2022	Q1 2024	Q3 2024	Q1 2025
18.	Avalon Lake Norman (4) Mooresville, NC	345	101		Q1 2023	Q4 2024	Q4 2025	Q2 2026
	Total	5,762	$	2,360

_________________________________

(1)Projected total capitalized cost includes all capitalized costs projected to be or actually incurred to develop the respective Development Community, determined in accordance with GAAP, including land acquisition costs, construction costs, real estate taxes, capitalized interest and loan fees, permits, professional fees, allocated development overhead and other regulatory fees, as well as costs incurred for first generation commercial tenants such as tenant improvements and leasing commissions.

(2)Stabilized operations is defined as the earlier of (i) attainment of 90% or greater physical occupancy or (ii) the one-year anniversary of completion of development.

(3)Development Communities containing at least 10,000 square feet of commercial space include Avalon Harrison (27,000 square feet) and Avalon West Windsor (19,000 square feet).

(4)Communities being developed through the Developer Funding Program. We use the DFP to accelerate wholly-owned development in our expansion regions, by utilizing third-party multifamily developers to source and construct communities which we own and operate.

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(5)Avalon Redmond Campus is a densification of the existing eaves Redmond Campus wholly-owned community, replacing 48 existing older apartment homes that were demolished.

During the three months ended March 31, 2023, we did not complete any developments.

Development Rights

At March 31, 2023, we had $177,889,000 in acquisition and related capitalized costs for direct interests in seven land parcels we own. In addition, we had $64,348,000 in capitalized costs (including legal fees, design fees and related overhead costs) related to (i) 30 Development Rights for which we control the land parcel, typically through a conditional agreement or option to purchase or lease the land, as well as (ii) costs incurred for four Development Rights that we expect to construct as additional phases of our existing stabilized operating communities on land we own. Collectively, the land held for development and associated costs for deferred development rights relate to 41 Development Rights for which we expect to develop new apartment communities in the future. The Development Rights range from those beginning design and architectural planning to those that have completed site plans and drawings and can begin construction almost immediately. We estimate that the successful completion of all of these communities would ultimately add approximately 14,290 apartment homes to our portfolio. Substantially all of these apartment homes will offer features like those offered by the communities we currently own.

The Development Rights are in different stages of the due diligence and regulatory approval process. The decisions as to which of the Development Rights to invest in, if any, or to continue to pursue once an investment in a Development Right is made, are business judgments that we make after we perform financial, demographic and other analyses. In the event that we do not proceed with a Development Right, we generally would not recover any of the capitalized costs incurred in the pursuit of those communities, unless we were to recover amounts in connection with the sale of land; however, we cannot guarantee a recovery. Pre-development costs incurred in the pursuit of Development Rights for which future development is not yet considered probable are expensed as incurred. In addition, if the status of a Development Right changes, making future development no longer probable, any unrecoverable capitalized pre-development costs are charged to expense. For the three months ended March 31, 2023, we incurred a charge of $2,992,000, for expensed transaction, development and other pursuit costs, net of recoveries, which include development pursuits that were not yet probable of future development at the time incurred, or for pursuits that we determined were no longer probable of being developed.

Structured Investment Program

As of March 31, 2023, we had commitments to fund three mezzanine loans of up to $92,375,000 in the aggregate under the SIP in our existing markets. The mezzanine loans have a weighted average rate of return of 9.8% and mature at various dates on or before June 2026. As of April 28, 2023, we had funded $46,840,000 of these commitments. See Note 5, "Investments," of the Condensed Consolidated Financial Statements included elsewhere in this report.

You should carefully review Part I, Item 1A. "Risk Factors" of our Form 10-K, as well as the discussion under Part II, Item 1A. "Risk Factors" in this report, for a discussion of the risks associated with our investment activity.

Insurance and Risk of Uninsured Losses

We maintain commercial general liability insurance and property insurance with respect to all of our communities, with insurance policies issued by a combination of third party insurers as well as a wholly-owned captive insurance company. These policies, along with other insurance policies we maintain, have policy specifications, insured and self-insured limits, exclusions and deductibles that we consider commercially reasonable. We utilize a wholly-owned captive insurance company to insure certain types and amounts of risks, which include property damage and resulting business interruption losses, general liability insurance and other construction related liability risks. The captive is utilized to insure other limited levels of risk, which may be in part reinsured by third party insurance. There are, however, certain types of losses (including, but not limited to, losses arising from nuclear liability, pandemic or acts of war) that are not insured, in full or in part, because they are either uninsurable or the cost of insurance makes it, in management’s view, economically impractical. You should carefully review the discussion under Part I, Item 1A. “Risk Factors” of our Form 10-K for a discussion of risks associated with an uninsured property or casualty loss.

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Our communities are insured for certain property damage and business interruption losses through a combination of community specific insurance policies and/or a master property insurance program which covers the majority of our communities. This master property program provides a $400,000,000 limit for any single occurrence and annually in the aggregate, subject to certain sub-limits and exclusions. Under the master property program, we are subject to various deductibles per occurrence, as well as additional self-insured retentions. In addition to our potential liability for the various policy self-insured retentions and deductibles, our captive insurance company is directly responsible for 100% of the first $25,000,000 of losses (per occurrence) and 10% of the second $25,000,000 of losses (per occurrence) incurred by the master property insurance policy. Our master property insurance program includes coverage for losses resulting from customary perils, including but not limited to wildfires and windstorms. Limits, deductibles, self-insured retentions and coverages may increase or decrease annually during the insurance renewal process, which occurs on different dates throughout the calendar year.

Many of our West Coast communities are located within the general vicinity of active earthquake faults. Many of our communities are near, and thus susceptible to, the major fault lines in California, including the San Andreas Fault, the Hayward Fault or other geological faults that are known or unknown. We cannot assure you that an earthquake would not cause damage or losses greater than our current insured levels. We procure property damage and resulting business interruption insurance coverage with a loss limit of $175,000,000 for any single occurrence and in the annual aggregate for losses resulting from earthquakes, subject to deductibles and self-insured retentions. However, for any losses resulting from earthquakes at communities located in California or Washington, the loss limit is $200,000,000 for any single occurrence and in the annual aggregate, subject to deductibles and self-insured retentions.

Our Southeast Florida communities could be impacted by significant storm events like hurricanes. We include coverage for losses arising from these types of weather events within our master property insurance program. We cannot assure you that a significant storm event would not cause damage or losses greater than our current insured levels.

Our communities and construction sites are insured for third-party liability losses through a combination of community specific insurance policies and/or coverage provided under a master commercial general liability and umbrella/excess insurance program. The master commercial general liability and umbrella/excess insurance policies cover the majority of our communities and construction sites and are subject to certain coverage limitations and exclusions, which we believe are commercially reasonable. After applicable self-insured retentions borne by us, our captive insurance company is directly responsible for the first $2,000,000 of losses (per occurrence) covered by the master general liability insurance policy.

Just as with office buildings, transportation systems and government buildings, apartment communities could become targets of terrorism. Our communities are insured for terrorism related losses through the Terrorism Risk Insurance Program Reauthorization Act (“TRIPRA”) program. This coverage extends to most of our casualty exposures (subject to deductibles and insured limits) and certain property insurance policies. We have also purchased private-market insurance for property damage due to terrorism with limits of $600,000,000 per occurrence and in the annual aggregate that includes certain coverages (not covered under TRIPRA) such as domestic-based terrorism. This insurance, often referred to as “non-certified” terrorism insurance, is subject to deductibles, limits and exclusions.

An additional consideration for insurance coverage and potential uninsured losses is mold growth or other environmental contamination. Mold growth may occur when excessive moisture accumulates in buildings or on building materials, particularly if the moisture problem remains undiscovered or is not addressed over a period of time. If a significant mold problem arises at one of our communities, we could be required to undertake a costly remediation program to contain or remove the mold from the affected community and could be exposed to other liabilities. For further discussion of the risks and our related prevention and remediation activities, please refer to the discussion under Part I, Item 1A. “Risk Factors - We may incur costs due to environmental contamination or non-compliance” of our Form 10-K. We cannot provide assurance that we will have coverage under our existing policies for property damage or liability to third parties arising as a result of exposure to mold or a claim of exposure to mold at one of our communities.

We also maintain other insurance programs that provide coverage for events including but not limited to employee dishonesty, loss of data, and liability associated with management of certain employee benefit plans. These policies are subject to maximum loss limits and include coverage limitations or exclusion that may preclude us from fully recovering.

The amount or types of insurance we maintain may not be sufficient to cover all losses and we may change our policy limits, coverages, and self-insured retentions or deductibles at any time.

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Forward-Looking Statements

This Form 10-Q contains "forward-looking statements" as that term is defined under the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by our use of the words "believe," "expect," "anticipate," "intend," "estimate," "assume," "project," "plan," "may," "shall," "will," "pursue" and other similar expressions in this Form 10-Q, that predict or indicate future events and trends and that do not report historical matters. These statements include, among other things, statements regarding our intent, belief or expectations with respect to:

•the impact of the Pandemic on our business, results of operations and financial condition;

•our potential development, redevelopment, acquisition or disposition of communities;

•the timing and cost of completion of apartment communities under construction, reconstruction, development or redevelopment;

•the timing of lease-up, occupancy and stabilization of apartment communities;

•the pursuit of land on which we are considering future development;

•the anticipated operating performance of our communities;

•cost, yield, revenue, NOI and earnings estimates;

•the impact of landlord-tenant laws and rent regulations;

•our expansion into new markets;

•our declaration or payment of dividends;

•our joint venture and discretionary fund activities;

•our policies regarding investments, indebtedness, acquisitions, dispositions, financings and other matters;

•our qualification as a REIT under the Code;

•the real estate markets in Metro New York/New Jersey, Northern and Southern California, Denver, Colorado, Southeast Florida, Dallas and Austin, Texas and Charlotte and Raleigh-Durham, North Carolina, and markets in selected states in the Mid-Atlantic, New England and Pacific Northwest regions of the United States and in general;

•the availability of debt and equity financing;

•interest rates;

•general economic conditions, including the potential impacts from current economic conditions, including rising interest rates and general price inflation;

•trends affecting our financial condition or results of operations;

•regulatory changes that may affect us; and

•the impact of legal proceedings.

We cannot assure the future results or outcome of the matters described in these statements; rather, these statements merely reflect our current expectations of the approximate outcomes of the matters discussed. We do not undertake a duty to update these forward-looking statements, and therefore they may not represent our estimates and assumptions after the date of this report. You should not rely on forward-looking statements because they involve known and unknown risks, uncertainties and other factors, some of which are beyond our control. These risks, uncertainties and other factors may cause our actual results, performance or achievements to differ materially from the anticipated future results, performance or achievements expressed or implied by these forward-looking statements. You should carefully review the discussion under Part I, Item 1A. "Risk Factors"

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of our Form 10-K and Part II, Item 1A. "Risk Factors" in this report, for further discussion of risks associated with forward-looking statements.

Risks and uncertainties that might cause such differences include those related to the Pandemic, including, among other factors, (i) the Pandemic's effect on the multifamily industry and the general economy, including from measures taken by businesses and the government, such as governmental limitations on the ability of multifamily owners to evict residents who are delinquent in the payment of their rent and (ii) the preferences of consumers and businesses for living and working arrangements both during and after the Pandemic. In addition, the effects of the Pandemic are likely to heighten the following risks, which we routinely face in our business.

Some of the factors that could cause our actual results, performance or achievements to differ materially from those expressed or implied by these forward-looking statements include, but are not limited to, the following:

•we may fail to secure development opportunities due to an inability to reach agreements with third parties to obtain land at attractive prices or to obtain desired zoning and other local approvals;

•we may abandon or defer development opportunities for a number of reasons, including changes in local market conditions which make development less desirable, increases in costs of development, increases in the cost of capital or lack of capital availability, resulting in losses;

•construction costs of a community may exceed our original estimates;

•we may not complete construction and lease-up of communities under development or redevelopment on schedule, resulting in increased interest costs and construction costs and a decrease in our expected rental revenues;

•occupancy rates and market rents may be adversely affected by competition and local economic and market conditions which are beyond our control;

•financing may not be available on favorable terms or at all, and our cash flows from operations and access to cost effective capital may be insufficient for the development of our pipeline, which could limit our pursuit of opportunities;

•the impact of new landlord-tenant laws and rent regulations may be greater than we expect;

•our cash flows may be insufficient to meet required payments of principal and interest, and we may be unable to refinance existing indebtedness or the terms of such refinancing may not be as favorable as the terms of existing indebtedness;

•we may be unsuccessful in our management of joint ventures and the REIT vehicles that are used with certain joint ventures;

•laws and regulations implementing rent control or rent stabilization, or otherwise limiting our ability to increase rents, charge fees or evict tenants, may impact our revenue or increase our costs;

•our expectations, estimates and assumptions as of the date of this filing regarding legal proceedings are subject to change;

•the possibility that we may choose to pay dividends in our stock instead of cash, which may result in stockholders having to pay taxes with respect to such dividends in excess of the cash received, if any; and

•investments made under the SIP in either mezzanine debt or preferred equity of third-party multifamily development may not be repaid as expected or the development may not be completed on schedule, which could require us to engage in litigation, foreclosure actions, and/or first party project completion to recover our investment, which may not be recovered in full or at all in such event.

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Critical Accounting Policies and Estimates

The preparation of financial statements in conformity with GAAP requires management to use judgment in the application of accounting policies, including making estimates and assumptions. If our judgment or interpretation of the facts and circumstances relating to various transactions had been different, or different assumptions were made, it is possible that different accounting policies would have been applied, resulting in different financial results or a different presentation of our financial statements. Our critical accounting policies consist of the following: (i) cost capitalization and (ii) abandoned pursuit costs and asset impairment. Our critical accounting policies and estimates have not changed materially from the discussion of our significant accounting policies found in Part II, Item 7. "Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Form 10-K.

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ITEM 3.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

There have been no material changes to our exposures to market risk as disclosed in Part II, Item 7A. "Quantitative and Qualitative Disclosures About Market Risk" in our Annual Report on Form 10-K for the year ended December 31, 2022.

ITEM 4.    CONTROLS AND PROCEDURES

(a)Evaluation of disclosure controls and procedures.

The Company carried out an evaluation under the supervision and with the participation of the Company's management, including the Company's Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the Company's disclosure controls and procedures as of March 31, 2023. Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the Company's disclosure controls and procedures are effective to ensure that information required to be disclosed by the Company in the reports it files or submits under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported, within the time periods specified in the Securities and Exchange Commission's rules and forms.

We continue to review and document our disclosure controls and procedures, including our internal controls and procedures for financial reporting, and may from time to time make changes aimed at enhancing their effectiveness and to ensure that our systems evolve with our business.

(b)Changes in internal controls over financial reporting.

None.

PART II.    OTHER INFORMATION

ITEM 1.    LEGAL PROCEEDINGS

The Company is involved in various legal proceedings that arise in the ordinary course of its business. While the resolutions of these matters cannot be predicted with certainty, the Company does not currently believe that any of these outstanding litigation matters, individually or in the aggregate, will have a material adverse effect on its financial condition or results of operations.

ITEM 1A.     RISK FACTORS

In addition to the other information set forth in this report, you should carefully consider the risk factors that could materially affect our business, financial condition or future results discussed in our Annual Report on Form 10-K for the year ended December 31, 2022 in Part I, Item 1A. "Risk Factors." The risks described in our Form 10-K are not the only risks that could affect the Company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial may also materially adversely affect our business, financial condition and/or operating results in the future. There have been no material changes to our risk factors since December 31, 2022.

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

(a) None.

(b) Not applicable.

(c) Issuer Purchases of Equity Securities

Period	(a) Total Number of Shares Purchased (1)	(b) Average Price Paid  Per Share		(c) Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	(d) Maximum Number (or Approximate Dollar Value) of Shares that May Yet be Purchased Under the Plans or Programs (in thousands) (2)
January 1 - January 31, 2023	—	$	—	—	$	316,148
February 1 - February 28, 2023	3,380	$	178.02	—	$	316,148
March 1 - March 31, 2023	64,313	$	167.46	7,000	$	315,019
Total	67,693	$	167.98	7,000

___________________________________

(1)Consists of shares surrendered to the Company in connection with exercise of stock options as payment of exercise price and activity under the 2020 Stock Repurchase Program, as well as for taxes associated with the vesting of restricted share grants and the conversion of performance awards to shares of common stock.

(2)In July 2020, the Board of Directors approved the 2020 Stock Repurchase Program, under which the Company may acquire shares of its common stock in open market or negotiated transactions up to an aggregate purchase price of $500,000,000. Purchases of common stock under the 2020 Stock Repurchase Program may be exercised from time to time in the Company’s discretion and in such amounts as market conditions warrant. The timing and actual number of shares repurchased will depend on a variety of factors including price, corporate and regulatory requirements, market conditions and other corporate liquidity requirements and priorities. The 2020 Stock Repurchase Program does not have an expiration date and may be suspended or terminated at any time without prior notice.

ITEM 3.    DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4.        MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5.        OTHER INFORMATION

None.

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ITEM 6.        EXHIBITS

Exhibit No.		Description
3(i).1	—	Articles of Amendment and Restatement of Articles of Incorporation of the Company, dated as of June 4, 1998. (Incorporated by reference to Exhibit 3(i).1 to Form 10-K of the Company filed March 1, 2007.)
3(i).2	—	Articles of Amendment, dated as of October 2, 1998. (Incorporated by reference to Exhibit 3(i).2 to Form 10-K of the Company filed March 1, 2007.)
3(i).3	—	Articles of Amendment, dated as of May 22, 2013. (Incorporated by reference to Exhibit 3(i).3 to Form 8-K of the Company filed May 22, 2013.)
3(i).4	—	Articles of Amendment, dated as of May 14, 2020. (Incorporated by reference to Exhibit 3(i).4 to Form 8-K of the Company filed May 15, 2020.)
3(ii).1	—	Amended and Restated Bylaws of the Company, as adopted by the Board of Directors on November 12, 2015, and as further amended on February 16, 2017, November 9, 2017, and May 6, 2019. (Incorporated by reference to Exhibit 3(ii).1 to Form 10-Q of the Company filed August 6, 2019.)
3(ii).2	—	Fourth Amendment to the Amended and Restated Bylaws of the Company, as adopted by the Board of Directors on November 10, 2022. (Incorporated by reference to Exhibit 3.1 to Form 8-K of the Company filed November 10, 2022.)
10.1+	—	AvalonBay Communities, Inc. Second Amended and Restated 2009 Equity Incentive Plan, as restated to reflect the First Amendment, Second Amendment, Third Amendment and Fourth Amendment thereto. (Incorporated by reference to Exhibit 10.1 to Form 10-K of the Company filed February 24, 2023.)
10.2+	—	Form of Agreement for Grant of Performance-Based Restricted Stock Units with attached Award Terms (subject to changes in the following: weightings; target, threshold and maximum levels of achievement; and metrics used.) (Incorporated by reference to Exhibit 10.7 to Form 10-K of the Company filed February 24, 2023.)
31.1	—	Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (Chief Executive Officer). (Filed herewith.)
31.2	—	Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (Chief Financial Officer). (Filed herewith.)
32	—	Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Chief Executive Officer and Chief Financial Officer). (Furnished herewith.)
101	—	The following financial materials from AvalonBay Communities, Inc.'s Quarterly Report on Form 10-Q for the period ended March 31, 2023 formatted in Inline XBRL (Extensible Business Reporting Language) includes: (i) the Condensed Consolidated Balance Sheets, (ii) the Condensed Consolidated Statements of Comprehensive Income, (iii) the Condensed Consolidated Statements of Cash Flows and (iv) Notes to the Condensed Consolidated Financial Statements. (Filed herewith.)
104	—	Cover Page Interactive Data File (embedded within the Inline XBRL document). (Filed herewith.)

_______________________________________________________________________________

+    Management contract or compensatory plan or arrangement required to be filed or incorporated by reference as an exhibit to this Form 10-Q.

46

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.

	AVALONBAY COMMUNITIES, INC.
Date:	May 5, 2023	/s/ Benjamin W. Schall
		Benjamin W. Schall
		Chief Executive Officer and President
		(Principal Executive Officer)
Date:	May 5, 2023	/s/ Kevin P. O'Shea
		Kevin P. O'Shea
		Chief Financial Officer
		(Principal Financial Officer)

47

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Benjamin W. Schall, certify that:

1.I have reviewed this quarterly report on Form 10-Q of AvalonBay Communities, Inc.;

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 officers 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 officers 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.

 Date: May 5, 2023

/s/ BENJAMIN W. SCHALL

Benjamin W. Schall

Chief Executive Officer and President

(Principal Executive Officer)

1

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Kevin P. O'Shea, certify that:

1.I have reviewed this quarterly report on Form 10-Q of AvalonBay Communities, Inc.;

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 officers 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 officers 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.

Date: May 5, 2023

/s/ KEVIN P. O'SHEA

Kevin P. O'Shea

Chief Financial Officer

(Principal Financial Officer)

1

EX-32

Exhibit 32

CERTIFICATION

The undersigned officers of AvalonBay Communities, Inc. (the “Company”) hereby certify that the Company’s quarterly report on Form 10-Q to which this certification is attached (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 5, 2023

/s/ BENJAMIN W. SCHALL

Benjamin W. Schall

Chief Executive Officer and President

(Principal Executive Officer)

/s/ KEVIN P. O'SHEA

Kevin P. O'Shea

Chief Financial Officer

(Principal Financial Officer)

This certification is being furnished and not filed, and shall not be incorporated into any document for any purpose, under the Securities Exchange Act of 1934 or the Securities Act of 1933.

1

XML

Cover Page - shares	3 Months Ended
	Mar. 31, 2023	Apr. 28, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	1-12672
Entity Registrant Name	AVALONBAY COMMUNITIES, INC.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	77-0404318
Entity Address, Address Line One	4040 Wilson Blvd., Suite 1000
Entity Address, Address City or Town	Arlington
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	22203
City Area Code	703
Local Phone Number	329-6300
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	AVB
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		141,999,068
Entity Central Index Key	0000915912
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Amendment Flag	false

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Real estate:
Land and improvements	$ 4,645,240	$ 4,640,971
Buildings and improvements	18,852,853	18,804,510
Furniture, fixtures and equipment	1,202,848	1,174,135
Gross operating real estate	24,700,941	24,619,616
Less accumulated depreciation	(7,058,327)	(6,878,556)
Net operating real estate	17,642,614	17,741,060
Construction in progress, including land	1,211,405	1,072,543
Land held for development	177,889	179,204
Real estate assets held for sale, net	11,832	0
Total real estate, net	19,043,740	18,992,807
Cash and cash equivalents	254,466	613,189
Cash in escrow	121,598	121,056
Resident security deposits	36,347	36,815
Unconsolidated investments	219,143	212,084
Deferred development costs	64,348	58,489
Prepaid expenses and other assets	296,995	279,993
Right of use lease assets	138,258	143,331
Total assets	20,174,895	20,457,764
LIABILITIES AND EQUITY
Unsecured notes, net	7,353,721	7,602,305
Variable rate unsecured credit facility and commercial paper	0	0
Mortgage notes payable, net	713,174	713,740
Dividends payable	233,375	226,022
Payables for construction	84,978	72,802
Accrued expenses and other liabilities	322,851	306,186
Lease liabilities	157,414	162,671
Accrued interest payable	73,295	54,100
Resident security deposits	64,097	63,700
Total liabilities	9,002,905	9,201,526
Commitments and contingencies
Redeemable noncontrolling interests	2,734	2,685
Equity:
Preferred stock, $0.01 par value; $25 liquidation preference; 50,000,000 shares authorized at March 31, 2023 and December 31, 2022; zero shares issued and outstanding at March 31, 2023 and December 31, 2022	0	0
Common stock, $0.01 par value; 280,000,000 shares authorized at March 31, 2023 and December 31, 2022; 140,002,856 and 139,916,864 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively	1,401	1,400
Additional paid-in capital	10,764,461	10,765,431
Accumulated earnings less dividends	401,879	485,221
Accumulated other comprehensive income (loss)	1,438	1,424
Total stockholders' equity	11,169,179	11,253,476
Noncontrolling interests	77	77
Total equity	11,169,256	11,253,553
Total liabilities and equity	$ 20,174,895	$ 20,457,764

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, liquidation preference (in dollars per share)	$ 25	$ 25
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	280,000,000	280,000,000
Common stock, shares issued (in shares)	140,002,856	139,916,864
Common stock, shares outstanding (in shares)	140,002,856	139,916,864

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue:
Rental and other income	$ 673,642	$ 613,175
Management, development and other fees	1,066	752
Total revenue	674,708	613,927
Expenses:
Operating expenses, excluding property taxes	164,832	151,312
Property taxes	74,495	70,738
Expensed transaction, development and other pursuit costs, net of recoveries	2,992	987
Interest expense, net	56,821	56,526
Depreciation expense	204,743	201,786
General and administrative expense	20,400	17,421
Casualty loss	5,051	0
Total expenses	529,334	498,770
Income from unconsolidated investments	4,845	317
(Loss) gain on sale of communities	(13)	148,800
Other real estate activity	129	273
Income before income taxes	150,335	264,547
Income tax expense	(3,560)	(2,471)
Net income	146,775	262,076
Net loss (income) attributable to noncontrolling interests	127	(32)
Net income attributable to common stockholders	146,902	262,044
Other comprehensive income:
(Loss) gain on cash flow hedges	(340)	10,155
Cash flow hedge losses reclassified to earnings	354	1,013
Comprehensive income	$ 146,916	$ 273,212
Earnings per common share - basic:
Net income attributable to common stockholders (in dollars per share)	$ 1.05	$ 1.87
Earnings per common share - diluted:
Net income attributable to common stockholders (in dollars per share)	$ 1.05	$ 1.87

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net income	$ 146,775	$ 262,076
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	204,743	201,786
Amortization of deferred financing costs and debt discount	3,231	2,691
Amortization of stock-based compensation	7,921	6,970
Equity in (income) loss of, and return on, unconsolidated investments and noncontrolling interests, net of eliminations	(1,457)	913
Casualty loss	2,407	0
Abandonment of development pursuits	2,992	8
Cash flow hedge losses reclassified to earnings	354	1,013
Gain on sale of real estate assets	(318)	(149,839)
Decrease in resident security deposits, prepaid expenses and other assets	(1,439)	(1,233)
Increase in accrued expenses, other liabilities and accrued interest payable	30,909	19,295
Net cash provided by operating activities	396,118	343,680
Cash flows from investing activities:
Development/redevelopment of real estate assets including land acquisitions and deferred development costs	(229,361)	(232,038)
Acquisition of real estate assets	0	(95,426)
Capital expenditures - existing real estate assets	(31,281)	(29,472)
Capital expenditures - non-real estate assets	(3,201)	(2,472)
Proceeds from (Payments to) Construction Payables	12,176	3,124
Proceeds from sale of real estate and for-sale condominiums, net of selling costs	3,964	267,736
Note receivable lending	(14,034)	0
Note receivable payments	0	1,946
Unconsolidated investments	(5,602)	(3,598)
Net cash used in investing activities	(267,339)	(90,200)
Cash flows from financing activities:
Issuance of common stock, net	135	459
Repurchase of common stock, net	(1,129)	0
Dividends paid	(223,465)	(223,063)
Repayments of mortgage notes payable, including prepayment penalties	(899)	(362)
Repayment of unsecured notes	(250,000)	(100,000)
Payment of deferred financing costs	(662)	(421)
Acquisition of/payments to noncontrolling interest	0	(16)
Payments related to tax withholding for share-based compensation	(10,310)	(16,353)
Distributions to DownREIT partnership unitholders	(12)	(12)
Distributions to joint venture and profit-sharing partners	(98)	(89)
Preferred interest obligation redemption and dividends	(520)	0
Net cash used in financing activities	(486,960)	(339,857)
Net decrease in cash, cash equivalents and cash in escrow	(358,181)	(86,377)
Cash, cash equivalents and cash in escrow, beginning of period	734,245	543,788
Cash, cash equivalents and cash in escrow, end of period	376,064	457,411
Cash paid during the period for interest, net of amount capitalized	33,814	36,290
Supplemental Cash Flow Information [Abstract]
Cash and cash equivalents	254,466	343,457
Cash in escrow	121,598	113,954
Cash, cash equivalents and cash in escrow reported in the Condensed Consolidated Statements of Cash Flows	$ 376,064	$ 457,411

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Supplemental disclosures of non-cash investing and financing activities
Common stock issued through the dividend reinvestment plan (in shares)	847	605
Common stock issued through the dividend reinvestment plan	$ 144	$ 150
Number of shares withheld to satisfy employees' tax withholding and other liabilities (in shares)	60,693	69,721
Shares withheld to satisfy employees' tax withholding and other liabilities	$ 10,242	$ 16,365
Stock issued during period, value, share-based compensation, forfeited	29	255
Dividends declared but not paid	233,375
Change in redemption value of redeemable noncontrolling interest	(286)	(43)
Increase in derivative liabilities	(650)
Increase in derivative assets	310	10,155
(Loss) gain on cash flow hedges	(340)	10,155
Cash flow hedge losses reclassified to earnings	$ 354	1,013
Interest Expense
Supplemental disclosures of non-cash investing and financing activities
Cash flow hedge losses reclassified to earnings		$ 1,013
Restricted Stock and Common Stock Converted from Performance Shares
Supplemental disclosures of non-cash investing and financing activities
Equity instruments granted (in shares)	151,053	132,135
Performance Shares
Supplemental disclosures of non-cash investing and financing activities
Equity instruments granted (in shares)	89,426
Converted to restricted stock (in shares)	60,016	54,053
Restricted stock
Supplemental disclosures of non-cash investing and financing activities
Equity instruments granted (in shares)	91,037	78,082
Fair value of shares issued	$ 16,182	$ 18,441
Stock issued during period, shares, share-based compensation, forfeited (in shares)	147	1,181
Common stock
Supplemental disclosures of non-cash investing and financing activities
Dividends declared but not paid	$ 231,438	$ 222,754
Accumulated earnings less dividends
Supplemental disclosures of non-cash investing and financing activities
Change in redemption value of redeemable noncontrolling interest	$ (286)	$ (43)

XML

Organization, Basis of Presentation and Significant Accounting Policies

3 Months Ended

Mar. 31, 2023

Accounting Policies [Abstract]

Organization, Basis of Presentation and Significant Accounting Policies

Organization, Basis of Presentation and Significant Accounting Policies

Organization and Basis of Presentation

AvalonBay Communities, Inc. (the "Company," which term, unless the context otherwise requires, refers to AvalonBay Communities, Inc. together with its subsidiaries) is a Maryland corporation that has elected to be treated as a real estate investment trust ("REIT") for federal income tax purposes under the Internal Revenue Code of 1986, as amended (the "Code"). The Company focuses on the development, redevelopment, acquisition, ownership and operation of multifamily communities in New England, the New York/New Jersey metro area, the Mid-Atlantic, the Pacific Northwest, and Northern and Southern California, as well as in the Company's expansion regions of Raleigh-Durham and Charlotte, North Carolina, Southeast Florida, Dallas and Austin, Texas, and Denver, Colorado.

At March 31, 2023, the Company owned or held a direct or indirect ownership interest in 295 operating apartment communities containing 88,826 apartment homes in 12 states and the District of Columbia, of which 19 communities were under development and one was under redevelopment. The Company also owned or held a direct or indirect ownership interest in land or rights to land on which the Company expects to develop an additional 41 communities that, if developed as expected, will contain an estimated 14,290 apartment homes.

The interim unaudited financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and in conjunction with the rules and regulations of the Securities and Exchange Commission ("SEC"). Certain information and footnote disclosures normally included in financial statements required by GAAP have been condensed or omitted pursuant to such rules and regulations. These unaudited financial statements should be read in conjunction with the financial statements and notes included in the Company's Annual Report on Form 10-K for the year ended December 31, 2022. The results of operations for the three months ended March 31, 2023 are not necessarily indicative of the operating results for the full year. Management believes the disclosures are adequate to ensure the information presented is not misleading. In the opinion of management, all adjustments and eliminations, consisting only of normal, recurring adjustments necessary for a fair presentation of the financial statements for the interim periods, have been included.

Capitalized terms used without definition have meanings provided elsewhere in this Form 10-Q.

Cash, Cash Equivalents and Cash in Escrow

Cash and cash equivalents includes all cash and liquid investments with an original maturity of three months or less from the date acquired. Cash in escrow includes principal reserve funds that are restricted for the repayment of specified secured financing and amounts the Company has designated for planned 1031 exchange activity. The majority of the Company's cash, cash equivalents and cash in escrow are held at major commercial banks.

Earnings per Common Share

Basic earnings per share is computed by dividing net income attributable to common stockholders by the weighted average number of shares outstanding during the period. All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with common shareholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per share ("EPS"). Both the unvested restricted shares and other potentially dilutive common shares, and the related impact to earnings, are considered when calculating earnings per share on a diluted basis. The Company's earnings per common share are determined as follows (dollars in thousands, except per share data):

	For the three months ended March 31,
	2023		2022
Basic and diluted shares outstanding
Weighted average common shares - basic	139,766,727		139,559,904
Weighted average DownREIT units outstanding	7,500		7,500
Effect of dilutive securities	249,583		408,678
Weighted average common shares - diluted	140,023,810		139,976,082
Calculation of Earnings per Share - basic
Net income attributable to common stockholders	$	146,902	$	262,044
Net income allocated to unvested restricted shares	(267)		(523)
Net income attributable to common stockholders - basic	$	146,635	$	261,521
Weighted average common shares - basic	139,766,727		139,559,904
Earnings per common share - basic	$	1.05	$	1.87
Calculation of Earnings per Share - diluted
Net income attributable to common stockholders	$	146,902	$	262,044
Add: noncontrolling interests of DownREIT unitholders in consolidated partnerships, including discontinued operations	12		12
Net income attributable to common stockholders - diluted	$	146,914	$	262,056
Weighted average common shares - diluted	140,023,810		139,976,082
Earnings per common share - diluted	$	1.05	$	1.87

Certain options to purchase shares of common stock in the amounts of 307,625 and 9,793 were outstanding as of March 31, 2023 and 2022, respectively, but were not included in the computation of diluted earnings per share because such options were anti-dilutive for the period.

Derivative Instruments and Hedging Activities

The Company enters into interest rate swap and interest rate cap agreements (collectively, "Hedging Derivatives") for interest rate risk management purposes and in conjunction with certain variable rate secured debt to satisfy lender requirements. The Company does not enter into Hedging Derivatives for trading or other speculative purposes. The Company assesses the effectiveness of qualifying cash flow and fair value hedges, both at inception and on an ongoing basis. The fair values of Hedging Derivatives that are in an asset position are recorded in prepaid expenses and other assets. The fair values of Hedging Derivatives that are in a liability position are included in accrued expenses and other liabilities. The Company does not present or disclose the fair value of Hedging Derivatives on a net basis. Fair value changes for derivatives that are not in qualifying hedge relationships are reported as a component of interest expense, net. For the Hedging Derivatives that qualify as effective cash flow hedges, the Company has recorded the cumulative changes in the fair value of Hedging Derivatives in accumulated other comprehensive income (loss). Amounts recorded in accumulated other comprehensive loss will be reclassified into earnings in the periods in which earnings are affected by the hedged cash flow. The effective portion of the change in fair value of the Hedging Derivatives that qualify as effective fair value hedges is reported as an adjustment to the carrying amount of the corresponding hedged item. See Note 11, “Fair Value,” for further discussion of derivative financial instruments.

Legal and Other Contingencies

The Company is involved in various claims and/or administrative proceedings that arise in the ordinary course of its business. The Company recognizes a loss associated with contingent legal matters when the loss is probable and estimable. While no assurances can be given, the Company does not currently believe that any of these outstanding litigation matters, individually or in the aggregate, will have a material adverse effect on its financial condition or results of operations.

Acquisitions of Investments in Real Estate

The Company accounts for real estate acquisitions, by first determining if the real estate investment is the acquisition of an asset or a business combination. Under either model, the Company identifies and determines the fair value of any assets acquired, liabilities assumed and any noncontrolling interest in the acquiree. Typical assets acquired and liabilities assumed include land, building, furniture, fixtures and equipment, debt and identified intangible assets and liabilities, consisting of the value of above or below market leases and in-place leases. The Company utilizes various sources to determine fair value, including its own analysis of recently acquired and existing comparable properties in its portfolio and other market data. Consideration for acquisitions is typically in the form of cash unless otherwise disclosed. For a business combination, the Company records the assets acquired and liabilities assumed based on the fair value of each respective item. For an asset acquisition, the purchase price is allocated based on the relative fair value of the net assets. The Company expenses all applicable acquisition costs for a business combination and capitalizes all applicable acquisition costs for an asset acquisition. The Company expects that acquisitions of individual operating communities will generally be asset acquisitions.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates.

Reclassifications

Certain reclassifications have been made to amounts in prior years' notes to financial statements to conform to current year presentations as a result of changes in held for sale classification, disposition activity, segment classification and classification of for-sale condominium inventory and activity.

For-Sale Condominium Inventory

The Company presents for-sale condominium inventory at historical cost and evaluates the condominiums for impairment when potential indicators exist, as further discussed in Note 5, "Investments." For-sale condominium inventory is included as a component of prepaid expenses and other assets on the accompanying Condensed Consolidated Balance Sheets.

Income Taxes

During the three months ended March 31, 2023 and 2022, the Company recognized income tax expense of $3,560,000 and $2,471,000, respectively, primarily related to The Park Loggia.

Leases

The Company is party to leases as both a lessor and a lessee, primarily as follows:

•lessor of residential and commercial space within its apartment communities; and

•lessee under (i) ground leases for land underlying current operating or development communities and certain commercial and parking facilities and (ii) office leases for its corporate headquarters and regional offices.

Lessee Considerations

The Company assesses whether a contract is or contains a lease based on whether the contract conveys the right to control the use of an identified asset, including specified portions of larger assets, for a period of time in exchange for consideration.

The Company’s leases include both fixed and variable lease payments that are based on an index or rate such as the consumer price index (CPI) or percentage rents based on total sales. Variable lease payments that are not based on an index or rate are not included in the measurement of the lease liability, but will be recognized as variable lease expense in the period in which they are incurred.

For leases that have options to extend the term or terminate the lease early, the Company only factored the impact of such options into the lease term if the option was considered reasonably certain to be exercised. The Company determined the discount rate associated with its ground and office leases on a lease by lease basis using the Company’s actual borrowing rates

as well as indicative market pricing for longer term rates and taking into consideration the remaining term of the lease agreements. For leases that are 12 months or less, the Company has elected the practical expedient to not assess these leases under Accounting Standards Codification ("ASC") 842, Leases, and recognize the lease payments on a straight line basis.

Lessor Considerations

The Company has determined that the residential and commercial leases at its apartment communities are operating leases. For leases that include rent concessions and/or fixed and determinable rent increases, rental income is recognized on a straight-line basis over the noncancellable term of the lease, which, for residential leases, is generally one year. Some of the Company’s commercial leases have renewal options which the Company will only include in the lease term if, at the commencement of the lease, it is reasonably certain that the lessee will exercise this option.

For the Company’s leases, which are comprised of a lease component and common area maintenance as a non-lease component, the Company determined that (i) the leases are operating leases, (ii) the lease component is the predominant component and (iii) all components of its operating leases share the same timing and pattern of transfer.

Revenue and Gain Recognition

Under ASC 606, Revenue from Contracts with Customers, the Company recognizes revenue for the transfer of goods and services to customers for consideration that the Company expects to receive. The majority of the Company’s revenue is derived from residential and commercial rental and other lease income, which are accounted for as discussed above, under "Leases". The Company's revenue streams that are not accounted for under ASC 842, Leases, include (i) management, development and other fees, (ii) non-lease related revenue and (iii) gains or losses on the sale of real estate.

The following table details the Company’s revenue disaggregated by reportable operating segment, further discussed in Note 8, “Segment Reporting,” for the three months ended March 31, 2023 and 2022. Segment information for total revenue excludes real estate assets that were sold from January 1, 2022 through March 31, 2023, or otherwise qualify as held for sale as of March 31, 2023, as described in Note 6, "Real Estate Disposition Activities" (dollars in thousands):

	Same Store		Other Stabilized		Development/ Redevelopment		Non- allocated (1)		Total
For the three months ended March 31, 2023
Management, development and other fees and other ancillary items	$	—	$	—	$	—	$	1,066	$	1,066
Non-lease related revenue (2)	2,604		1,141		36		—		3,781
Total non-lease revenue (3)	2,604		1,141		36		1,066		4,847
Lease income (4)	627,325		30,589		10,464		—		668,378
Total revenue	$	629,929	$	31,730	$	10,500	$	1,066	$	673,225
For the three months ended March 31, 2022
Management, development and other fees and other ancillary items	$	—	$	—	$	—	$	752	$	752
Non-lease related revenue (2)	2,258		410		13		—		2,681
Total non-lease revenue (3)	2,258		410		13		752		3,433
Lease income (4)	573,386		14,805		6,039		—		594,230
Total revenue	$	575,644	$	15,215	$	6,052	$	752	$	597,663

__________________________________

(1)Represents third-party property management, developer fees and miscellaneous income and other ancillary items which are not allocated to a reportable segment.

(2)Amounts include revenue streams related to leasing activities that are not considered components of a lease, and revenue streams not related to leasing activities including, but not limited to, application fees, renters insurance fees and vendor revenue sharing.

(3)Represents revenue accounted for under ASC 606.

(4)Represents residential and commercial rental and other lease income, accounted for under ASC 842.

Due to the nature and timing of the Company’s identified revenue streams, there were no material amounts of outstanding or unsatisfied performance obligations as of March 31, 2023.

Uncollectible Lease Revenue Reserves

The Company assesses the collectability of its lease revenue and receivables on an ongoing basis by (i) assessing the probability of receiving all lease amounts due on a lease by lease basis, (ii) reserving all amounts for those leases where collection of substantially all of the remaining lease payments is not probable and (iii) subsequently, will only recognize revenue to the extent cash is received. If the Company determines that collection of the remaining lease payments becomes probable at a future date, the Company will recognize the cumulative revenue that would have been recorded under the original lease agreement.

In addition to the specific reserves recognized under ASC 842, the Company also evaluates its lease receivables for collectability at a portfolio level under ASC 450, Contingencies – Loss Contingencies. The Company recognizes a reserve under ASC 450 when the uncollectible revenue is probable and reasonably estimable. The Company applies this reserve to the population of the Company’s revenue and receivables not specifically addressed as part of the specific ASC 842 reserve.

The Company recorded an aggregate offset to income for uncollectible lease revenue, net of amounts received from government rent relief programs, for its residential and commercial portfolios of $16,971,000 and $13,600,000 for the three months ended March 31, 2023 and 2022, respectively, under ASC 842 and ASC 450.

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Interest Capitalized	3 Months Ended
	Mar. 31, 2023
Interest Capitalized
Interest Capitalized	Interest CapitalizedThe Company capitalizes interest during the development and redevelopment of real estate assets. Capitalized interest associated with the Company's development or redevelopment activities totaled $11,018,000 and $7,100,000 for the three months ended March 31, 2023 and 2022, respectively.

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Debt

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Debt

Debt

The Company's debt, which consists of unsecured notes, the variable rate unsecured term loan (the "Term Loan"), mortgage notes payable, the Credit Facility and the Commercial Paper Program, each as defined below, as of March 31, 2023 and December 31, 2022 are summarized below. The following amounts and discussion do not include the mortgage notes related to the communities classified as held for sale, if any, as of March 31, 2023 and December 31, 2022, as shown in the accompanying Condensed Consolidated Balance Sheets (dollars in thousands) (see Note 6, "Real Estate Disposition Activities"). The weighted average interest rates in the following table for secured and unsecured notes include costs of financing such as credit enhancement fees, trustees' fees, the impact of interest rate hedges and mark-to-market adjustments.

	March 31, 2023				December 31, 2022
Fixed rate unsecured notes	$	7,250,000	3.3	%	$	7,500,000	3.3	%
Term Loan	150,000		5.9	%	150,000		5.4	%
Fixed rate mortgage notes payable - conventional and tax-exempt	270,677		3.4	%	270,677		3.4	%
Variable rate mortgage notes payable - conventional and tax-exempt	456,250		5.6	%	457,150		5.3	%
Total mortgage notes payable and unsecured notes and Term Loan	8,126,927		3.5	%	8,377,827		3.4	%
Credit Facility	—		—	%	—		—	%
Commercial paper	—		—	%	—		—	%
Total principal outstanding	8,126,927		3.5	%	8,377,827		3.4	%
Less deferred financing costs and debt discount (1)	(60,032)				(61,782)
Total	$	8,066,895			$	8,316,045

_____________________________________

(1)Excludes deferred financing costs and debt discount associated with the Credit Facility and the Commercial Paper Program which are included in prepaid expenses and other assets on the accompanying Condensed Consolidated Balance Sheets.

The borrowing capacity under the Credit Facility is impacted by the Commercial Paper Program and outstanding letters of credit, which as of March 31, 2023 and December 31, 2022, were $1,914,000.

After taking into account its letters of credit, the Company had $2,248,086,000 available under the Credit Facility as of March 31, 2023. In addition, the Company had $50,682,000 and $48,740,000 outstanding in additional letters of credit unrelated to the Credit Facility as of March 31, 2023 and December 31, 2022, respectively.

During the three months ended March 31, 2023, the Company repaid $250,000,000 principal amount of its 2.85% unsecured notes at its maturity.

In March 2022, the Company established an unsecured commercial paper note program (the “Commercial Paper Program”). Under the terms of the Commercial Paper Program, the Company may issue, from time to time, unsecured commercial paper notes with varying maturities of less than one year. Amounts available under the Commercial Paper Program may be issued, repaid and re-issued from time to time, with the maximum aggregate face or principal amount outstanding at any one time not to exceed $500,000,000. The Commercial Paper Program is backstopped by the Company's commitment to maintain available borrowing capacity under the Credit Facility in an amount equal to actual borrowings under the Commercial Paper Program.

At March 31, 2023, the Company had a $2,250,000,000 revolving variable rate unsecured credit facility with a syndicate of banks (the "Credit Facility") which matures in September 2026. The interest rate that would be applicable to borrowings under the Credit Facility is 5.70% at March 31, 2023 and is composed of (i) the Secured Overnight Financing Rate ("SOFR"), applicable to the period of borrowing for a particular draw of funds from the facility (e.g., one month to maturity, three months to maturity, etc.), plus (ii) the current borrowing spread to SOFR of 0.825% per annum, which consists of a 0.10% SOFR adjustment plus 0.725% per annum, assuming a one month term SOFR borrowing rate. The borrowing spread to SOFR can vary from SOFR plus 0.65% to SOFR plus 1.40% based upon the rating of the Company's unsecured and unsubordinated long-term indebtedness. There is also an annual facility commitment fee of 0.125% of the borrowing capacity under the facility, which can vary from 0.10% to 0.30% based upon the rating of the Company's unsecured and unsubordinated long-term indebtedness. The Credit Facility contains a sustainability-linked pricing component which provides for interest rate margin and commitment fee reductions or increases by meeting or missing targets related to environmental sustainability, specifically greenhouse gas emission reductions, with the adjustment determined annually beginning in July 2023.

In the aggregate, secured notes payable mature at various dates from March 2027 through July 2066, and are secured by certain apartment communities (with a net carrying value of $1,174,526,000, excluding communities classified as held for sale, as of March 31, 2023).

In addition to the Commercial Paper Program, scheduled payments and maturities of secured notes payable and unsecured notes outstanding at March 31, 2023 were as follows (dollars in thousands):

Year	Secured notes principal payments and maturities		Unsecured notes and Term Loan maturities			Stated interest rate of unsecured notes and Term Loan
2023	$	7,400	$	350,000		4.200	%
2024	9,100		300,000			3.500	%
			150,000		(1)	SOFR + 0.95%
2025	9,700		525,000			3.450	%
			300,000			3.500	%
2026	10,600		475,000			2.950	%
			300,000			2.900	%
2027	249,000		400,000			3.350	%
2028	17,600		450,000			3.200	%
			400,000			1.900	%
2029	74,750		450,000			3.300	%
2030	9,000		700,000			2.300	%
2031	9,600		600,000			2.450	%
2032	10,300		700,000			2.050	%
Thereafter	319,877		350,000			5.000	%
			350,000			3.900	%
			300,000			4.150	%
			300,000			4.350	%
	$	726,927	$	7,400,000

_________________________________

(1)     The borrowing spread to SOFR of 0.95% per annum, consists of a 0.10% SOFR adjustment plus 0.85% per annum.

The Company was in compliance at March 31, 2023 with customary covenants under the Credit Facility and the Commercial Paper Program, the Term Loan and the indentures under which the Company's unsecured notes were issued.

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Equity

3 Months Ended

Mar. 31, 2023

Stockholders' Equity Note [Abstract]

Equity

Equity

The following summarizes the changes in equity for the three months ended March 31, 2023 and 2022 (dollars in thousands):

	Common stock		Additional paid-in capital		Accumulated earnings less dividends		Accumulated other comprehensive income (loss)		Total stockholder's equity		Noncontrolling interests		Total equity
Balance at December 31, 2022	$	1,400	$	10,765,431	$	485,221	$	1,424	$	11,253,476	$	77	$	11,253,553
Net income attributable to common stockholders	—		—		146,902		—		146,902		—		146,902
Loss on cash flow hedges, net	—		—		—		(340)		(340)		—		(340)
Cash flow hedge losses reclassified to earnings	—		—		—		354		354		—		354
Change in redemption value of redeemable noncontrolling interest	—		—		(286)		—		(286)		—		(286)
Dividends declared to common stockholders ($1.65 per share)	—		—		(230,958)		—		(230,958)		—		(230,958)
Issuance of common stock, net of withholdings	1		(11,554)		1,590		—		(9,963)		—		(9,963)
Repurchase of common stock, including repurchase costs	—		(539)		(590)		—		(1,129)		—		(1,129)
Amortization of deferred compensation	—		11,123		—		—		11,123		—		11,123
Balance at March 31, 2023	$	1,401	$	10,764,461	$	401,879	$	1,438	$	11,169,179	$	77	$	11,169,256

	Common stock		Additional paid-in capital		Accumulated earnings less dividends		Accumulated other comprehensive income (loss)		Total stockholder's equity		Noncontrolling interests		Total equity
Balance at December 31, 2021	$	1,398	$	10,716,414	$	240,821	$	(26,106)	$	10,932,527	$	566	$	10,933,093
Net income attributable to common stockholders	—		—		262,044		—		262,044		—		262,044
Gain on cash flow hedges, net	—		—		—		10,155		10,155		—		10,155
Cash flow hedge losses reclassified to earnings	—		—		—		1,013		1,013		—		1,013
Change in redemption value of redeemable noncontrolling interest	—		—		(43)		—		(43)		—		(43)
Noncontrolling interest distribution and income allocation	—		—		—		—		—		(10)		(10)
Dividends declared to common stockholders ($1.59 per share)	—		—		(222,373)		—		(222,373)		—		(222,373)
Issuance of common stock, net of withholdings	1		(14,263)		(1,501)		—		(15,763)		—		(15,763)
Amortization of deferred compensation	—		9,176		—		—		9,176		—		9,176
Balance at March 31, 2022	$	1,399	$	10,711,327	$	278,948	$	(14,938)	$	10,976,736	$	556	$	10,977,292

As of March 31, 2023 and December 31, 2022, the Company's charter had authorized for issuance a total of 280,000,000 shares of common stock and 50,000,000 shares of preferred stock.

During the three months ended March 31, 2023, the Company:

i.issued 1,932 shares of common stock in connection with stock options exercised;

ii.issued 847 shares of common stock through the Company's dividend reinvestment plan;

iii.issued 151,053 shares of common stock in connection with restricted stock grants and the conversion of performance awards to shares of common stock;

iv.withheld 60,693 shares of common stock to satisfy employees' tax withholding and other liabilities;

v.canceled 147 shares of restricted common stock upon forfeiture; and

vi.repurchased 7,000 common shares through the 2020 Stock Repurchase Program.

Deferred compensation granted under the Company's Second Amended and Restated 2009 Equity Incentive Plan (the "2009 Plan") for the three months ended March 31, 2023 does not impact the Company's Condensed Consolidated Financial Statements until recognized as compensation cost.

In July 2020, the Company’s Board of Directors approved a stock repurchase program under which the Company may acquire shares of its common stock in open market or negotiated transactions up to an aggregate purchase price of $500,000,000 (the "2020 Stock Repurchase Program"). Purchases of common stock under the 2020 Stock Repurchase Program may be exercised at the Company’s discretion with the timing and number of shares repurchased depending on a variety of factors, including price, corporate and regulatory requirements and other corporate liquidity requirements and priorities. The 2020 Stock Repurchase Program does not have an expiration date and may be suspended or terminated at any time without prior notice. During the three months ended March 31, 2023, the Company repurchased 7,000 shares of common stock at an average price of $161.29 per share. As of March 31, 2023, the Company had $315,019,000 remaining authorized for purchase under this program.

In May 2019, the Company commenced a fifth continuous equity program ("CEP V") under which the Company may sell (and/or enter into forward sale agreements for the sale of) up to $1,000,000,000 of its common stock from time to time. Actual sales will depend on a variety of factors to be determined by the Company, including market conditions, the trading price of the Company's common stock and the Company's determinations of the appropriate funding sources. The Company engaged sales agents for CEP V who receive compensation of up to 1.5% of the gross sales price for shares sold. The Company expects that, if entered into, it will physically settle each forward sale agreement on one or more dates specified by the Company on or prior to the maturity date of that particular forward sale agreement, in which case the Company will receive aggregate net cash proceeds at settlement equal to the number of shares underlying the particular forward agreement multiplied by the forward sale price. However, the Company may also elect to cash settle or net share settle a forward sale agreement. In connection with each forward sale agreement, the Company will pay the forward seller, in the form of a reduced initial forward sale price, a commission of up to 1.5% of the sales prices of all borrowed shares of common stock sold. During the three months ended March 31, 2023, the Company had no sales under this program. As of March 31, 2023, the Company had $705,961,000 remaining authorized for issuance under CEP V.

In addition to CEP V, during April 2022, the Company completed an underwritten public offering of 2,000,000 shares of its common stock for an initial net forward sales price of $247.30 per share, after offering fees and discounts, offered in connection with forward contracts entered into with certain financial institutions acting as forward purchasers (the "Equity Forward") (see Note 12, "Subsequent Events" for a discussion of the settlement of the Equity Forward in April 2023).

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Investments

3 Months Ended

Mar. 31, 2023

Equity Method Investments and Joint Ventures [Abstract]

Investments

Investments

Unconsolidated Investments

As of March 31, 2023, the Company had investments in six unconsolidated real estate entities with ownership interest percentages ranging from 20.0% to 50.0% and other unconsolidated investments including property technology and environmentally focused companies and investment management funds. The Company accounts for its unconsolidated investments under the equity method of accounting or under the measurement alternative with the carrying amount of the investment adjusted to fair value when there is an observable transaction for the same or similar investment of the same issuer indicating a change in fair value. The significant accounting policies of the Company's unconsolidated investments are consistent with those of the Company in all material respects. Certain of these investments are subject to various buy‑sell provisions or other rights which are customary in real estate joint venture agreements. The Company and its partners in these entities may initiate these provisions to either sell the Company's interest or acquire the interest from the Company's partner.

Structured Investment Program

In April 2022, the Company established its Structured Investment Program (the “SIP”), an investment platform through which the Company provides mezzanine loans or preferred equity to third-party multifamily developers in the Company's existing markets. As of March 31, 2023, the Company had commitments to fund three mezzanine loans of up to $92,375,000 in the aggregate. The mezzanine loans have a weighted average rate of return of 9.8% and mature at various dates on or before June 2026. At March 31, 2023, the Company had funded $42,074,000 of these commitments.

The Company evaluates each SIP commitment to determine the classification as a loan or an investment in a real estate development project. As of March 31, 2023, all of the SIP commitments are classified as loans. The Company includes amounts outstanding under the SIP as a component of prepaid expenses and other assets on the accompanying Condensed Consolidated Balance Sheets. The Company evaluates the credit risk for each loan on an ongoing basis, estimating the reserve for credit losses using relevant available information from internal and external sources. Market-based historical credit loss data provides the basis for the estimation of expected credit losses, with adjustments, if necessary, for differences in current loan-specific risk characteristics, such as the amount of equity capital provided by a borrower, nature of the real estate being developed or other factors.

For the three existing loans, interest is recognized as earned as interest income, and interest income and any change in the expected credit loss are included as a component of income from unconsolidated investments, on the accompanying Condensed Consolidated Statements of Comprehensive Income.

Expensed Transaction, Development and Other Pursuit Costs

The Company capitalizes costs associated with its development activities when future development is probable ("Development Rights") to the basis of land held, or if the Company has either not yet acquired the land or if the project is subject to a leasehold interest, the costs are capitalized as deferred development costs. Future development of these Development Rights is dependent upon various factors, including zoning and regulatory approval, rental market conditions, construction costs and the availability of capital. Costs incurred for pursuits for which future development is not yet considered probable are expensed as incurred. In addition, if the Company determines a Development Right is no longer probable, the Company recognizes any necessary expense to write down its basis in the Development Right. The Company expensed costs related to development pursuits not yet considered probable for development and the abandonment of Development Rights, as well as costs incurred in pursuing the acquisition or disposition of assets for which such acquisition and disposition activity did not occur, in the amounts of $2,992,000 and $987,000 for the three months ended March 31, 2023 and 2022, respectively. These costs are included in expensed transaction, development and other pursuit costs, net of recoveries on the accompanying Condensed Consolidated Statements of Comprehensive Income. These costs can vary greatly, and the costs incurred in any given period may be significantly different in future periods.

Impairment of Long-Lived Assets and Casualty Loss

The Company evaluates its real estate and other long-lived assets for impairment when potential indicators of impairment exist. Such assets are stated at cost, less accumulated depreciation and amortization, unless the carrying amount of the asset is not recoverable. If events or circumstances indicate that the carrying amount of an asset may not be recoverable, the Company assesses its recoverability by comparing the carrying amount of the asset to its estimated undiscounted future cash flows. If the carrying amount exceeds the aggregate undiscounted future cash flows, the Company recognizes an impairment loss to the extent the carrying amount exceeds the estimated fair value of the asset. Based on periodic tests of recoverability of long-lived

assets, for the three months ended March 31, 2023 and 2022, the Company did not recognize any material impairment losses. For the three months ended March 31, 2023, the Company recognized a charge of $5,051,000 for the property and casualty damages across certain communities in its Northeast and California regions related to severe weather, reported as casualty loss on the accompanying Condensed Consolidated Statements of Comprehensive Income.

The Company evaluates its for-sale condominium inventory for potential indicators of impairment, considering whether the fair value of the individual for-sale condominium units exceeds the carrying value of those units. For-sale condominium inventory is stated at the lower of cost or fair value. The Company determines the fair value of its for-sale condominium inventory as the estimated sales price less direct costs to sell. For the three months ended March 31, 2023 and 2022, the Company did not recognize any impairment losses on its for-sale condominium inventory.

The Company assesses its portfolio of land held for both development and investment for impairment if the intent of the Company changes with respect to either the development of, or the expected holding period for, the land. For the three months ended March 31, 2023 and 2022, the Company did not recognize any impairment charges on its investment in land.

The Company evaluates its unconsolidated investments for other than temporary impairment, considering both the extent and amount by which the carrying value of the investment exceeds the fair value, and the Company's intent and ability to hold the investment to recover its carrying value. The Company also evaluates its proportionate share of any impairment of assets held by unconsolidated investments. There were no other than temporary impairment losses recognized for any of the Company's unconsolidated investments for the three months ended March 31, 2023 and 2022.

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Real Estate Disposition Activities

3 Months Ended

Mar. 31, 2023

Discontinued Operations and Disposal Groups [Abstract]

Real Estate Disposition Activities

Real Estate Disposition Activities

At March 31, 2023, the Company had one real estate asset that qualified as held for sale.

The Park Loggia

The Park Loggia, located in New York, NY, contains 172 for-sale residential condominiums and 66,000 square feet of commercial space. During the three months ended March 31, 2023 and 2022, the Company sold one and 15 residential condominiums at The Park Loggia for gross proceeds of $3,907,000 and $40,336,000, respectively, resulting in a gain in accordance with GAAP of $28,000 and $1,002,000, respectively. The Company incurred $202,000 and $766,000 for the three months ended March 31, 2023 and 2022, respectively, in marketing, operating and administrative costs. All amounts are included in other real estate activity, on the accompanying Condensed Consolidated Statements of Comprehensive Income. As of March 31, 2023, there were eight residential condominiums remaining to be sold. As of March 31, 2023 and December 31, 2022, the unsold for-sale residential condominiums at The Park Loggia had an aggregate carrying value of $28,913,000 and $32,532,000, respectively, presented in prepaid expenses and other assets on the accompanying Condensed Consolidated Balance Sheets.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2023

Leases [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Lease Obligations

The Company owns seven apartment communities and two commercial properties, located on land subject to ground leases expiring between July 2046 and April 2106. The Company has purchase options for all ground leases expiring prior to 2062. The ground leases for six of the seven apartment communities and the two commercial properties are operating leases, with rental expense recognized on a straight-line basis over the lease term. In addition, the Company is party to 13 leases for its corporate and regional offices with varying terms through 2031, all of which are operating leases.

As of March 31, 2023 and December 31, 2022, the Company had total operating lease assets of $109,976,000 and $114,977,000, respectively, and lease obligations of $137,359,000 and $142,602,000, respectively, reported as components of right of use lease assets and lease liabilities, respectively, on the accompanying Condensed Consolidated Balance Sheets. The Company incurred costs of $4,005,000 and $3,706,000 for the three months ended March 31, 2023 and 2022, respectively, related to operating leases.

The Company has one apartment community located on land subject to a ground lease and four leases for portions of parking garages adjacent to apartment communities, that are finance leases. As of March 31, 2023 and December 31, 2022, the Company had total finance lease assets of $28,282,000 and $28,354,000, respectively, and total finance lease obligations of $20,055,000 and $20,069,000, respectively, reported as components of right of use lease assets and lease liabilities on the accompanying Condensed Consolidated Balance Sheets.

Commitments and Contingencies

Commitments and Contingencies

Lease Obligations

The Company owns seven apartment communities and two commercial properties, located on land subject to ground leases expiring between July 2046 and April 2106. The Company has purchase options for all ground leases expiring prior to 2062. The ground leases for six of the seven apartment communities and the two commercial properties are operating leases, with rental expense recognized on a straight-line basis over the lease term. In addition, the Company is party to 13 leases for its corporate and regional offices with varying terms through 2031, all of which are operating leases.

As of March 31, 2023 and December 31, 2022, the Company had total operating lease assets of $109,976,000 and $114,977,000, respectively, and lease obligations of $137,359,000 and $142,602,000, respectively, reported as components of right of use lease assets and lease liabilities, respectively, on the accompanying Condensed Consolidated Balance Sheets. The Company incurred costs of $4,005,000 and $3,706,000 for the three months ended March 31, 2023 and 2022, respectively, related to operating leases.

The Company has one apartment community located on land subject to a ground lease and four leases for portions of parking garages adjacent to apartment communities, that are finance leases. As of March 31, 2023 and December 31, 2022, the Company had total finance lease assets of $28,282,000 and $28,354,000, respectively, and total finance lease obligations of $20,055,000 and $20,069,000, respectively, reported as components of right of use lease assets and lease liabilities on the accompanying Condensed Consolidated Balance Sheets.

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Segment Reporting

3 Months Ended

Mar. 31, 2023

Segment Reporting [Abstract]

Segment Reporting

Segment Reporting

The Company's reportable operating segments include Same Store, Other Stabilized and Development/Redevelopment. Annually as of January 1, the Company determines which of its communities fall into each of these categories and generally maintains that classification throughout the year for the purpose of reporting segment operations, unless disposition or redevelopment plans regarding a community change. In addition, the Company owns land for future development and has other corporate assets that are not allocated to an operating segment.

The Company's segment disclosures present the measure(s) used by the chief operating decision maker ("CODM") for assessing each segment's performance. The Company's CODM is comprised of several members of its executive management team who use net operating income ("NOI") as the primary financial measure for Same Store communities and Other Stabilized communities. NOI is defined by the Company as total property revenue less direct property operating expenses (including property taxes), and excluding corporate-level income (including management, development and other fees), corporate-level property management and other indirect operating expenses, expensed transaction, development and other pursuit costs, net of recoveries, interest expense, net, loss on extinguishment of debt, net, general and administrative expense, income from unconsolidated investments, depreciation expense, income tax expense, casualty loss, loss (gain) on sale of communities, other real estate activity and net operating income from real estate assets sold or held for sale. The CODM evaluates the Company's financial performance on a consolidated residential and commercial basis. The commercial results attributable to the non-apartment components of the Company's mixed-use communities and other nonresidential operations represent 1.9% and 2.0% of total NOI for the three months ended March 31, 2023 and 2022, respectively. Although the Company considers NOI a useful measure of a community's or communities' operating performance, NOI should not be considered an alternative to net income or net cash flow from operating activities, as determined in accordance with GAAP. NOI excludes a number of income and expense categories as detailed in the reconciliation of NOI to net income.

A reconciliation of NOI to net income for the three months ended March 31, 2023 and 2022 is as follows (dollars in thousands):

	For the three months ended March 31,
	2023		2022
Net income	$	146,775	$	262,076
Property management and other indirect operating expenses, net of corporate income	30,784		28,113
Expensed transaction, development and other pursuit costs, net of recoveries	2,992		987
Interest expense, net	56,821		56,526
General and administrative expense	20,400		17,421
Income from unconsolidated investments	(4,845)		(317)
Depreciation expense	204,743		201,786
Income tax expense	3,560		2,471
Casualty loss	5,051		—
Loss (gain) on sale of communities	13		(148,800)
Other real estate activity	(129)		(273)
Net operating income from real estate assets sold or held for sale	(1,126)		(10,277)
Net operating income	$	465,039	$	409,713

The following is a summary of NOI from real estate assets sold or held for sale for the periods presented (dollars in thousands):

	For the three months ended March 31,
	2023		2022
Rental income from real estate assets sold or held for sale	$	1,483	$	16,264
Operating expenses from real estate assets sold or held for sale	(357)		(5,987)
Net operating income from real estate assets sold or held for sale	$	1,126	$	10,277

The primary performance measure for communities under development or redevelopment depends on the stage of completion. While under development, management monitors actual construction costs against budgeted costs as well as lease-up pace and rent levels compared to budget.

The following table details the Company's segment information as of the dates specified (dollars in thousands). The segments are classified based on the individual community's status at January 1, 2023. Segment information for the three months ended March 31, 2023 and 2022 has been adjusted to exclude the real estate assets that were sold from January 1, 2022 through March 31, 2023, or otherwise qualify as held for sale as of March 31, 2023, as described in Note 6, "Real Estate Disposition Activities."

	For the three months ended
	Total revenue		NOI		Gross real estate (1)
For the period ended March 31, 2023
Same Store
New England	$	92,435	$	61,511	$	2,976,832
Metro NY/NJ	132,495		92,052		4,470,962
Mid-Atlantic	92,079		64,739		3,511,646
Southeast Florida	19,310		12,933		799,221
Denver, CO	6,847		4,944		321,744
Pacific Northwest	42,660		30,429		1,536,311
Northern California	105,145		74,788		3,771,728
Southern California	133,099		90,982		4,771,435
Other Expansion Regions	5,859		4,076		326,335
Total Same Store	629,929		436,454		22,486,214
Other Stabilized	31,730		22,348		1,518,856
Development / Redevelopment	10,500		6,237		1,781,207
Land Held for Development	N/A		N/A		177,889
Non-allocated (2)	1,066		N/A		126,069
Total	$	673,225	$	465,039	$	26,090,235
For the period ended March 31, 2022
Same Store
New England	$	82,806	$	53,448	$	2,939,442
Metro NY/NJ	118,641		81,495		4,437,153
Mid-Atlantic	85,300		58,495		3,477,547
Southeast Florida	16,459		10,482		793,309
Denver, CO	6,315		4,727		320,803
Pacific Northwest	38,851		27,476		1,526,324
Northern California	97,105		68,753		3,729,145
Southern California	124,968		86,447		4,717,572
Other Expansion Regions	5,199		3,603		321,265
Total Same Store	575,644		394,926		22,262,560
Other Stabilized	15,215		10,739		1,052,283
Development / Redevelopment	6,052		4,048		943,753
Land Held for Development	N/A		N/A		218,852
Non-allocated (2)	752		N/A		113,478
Total	$	597,663	$	409,713	$	24,590,926

__________________________________

(1)Does not include gross real estate assets held for sale of $35,556 as of March 31, 2023 and gross real estate either sold or classified as held for sale subsequent to March 31, 2022 of $433,495.

(2)Revenue represents third-party property management, developer fees and miscellaneous income and other ancillary items which are not allocated to a reportable segment.

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Stock-Based Compensation Plans

3 Months Ended

Mar. 31, 2023

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation Plans

Stock-Based Compensation Plans

As part of its long-term compensation plans, the Company has granted stock options, performance awards and restricted stock under the 2009 Plan. Details of the outstanding awards and activity under the 2009 Plan for the three months ended March 31, 2023 are presented below.

Stock Options:

	Options	Weighted average exercise price per option
Options Outstanding at December 31, 2022	293,813	$	181.85
Granted (1)	15,744	177.83
Exercised	(1,932)	130.23
Forfeited	—	—
Options Outstanding at March 31, 2023	307,625	$	181.97
Options Exercisable at March 31, 2023	283,735	$	180.96

__________________________________

(1)Grants are from recipient elections to receive a portion of earned restricted stock awards in the form of stock options.

Performance Awards:

	Performance awards	Weighted average grant date fair value per award (1)
Outstanding at December 31, 2022	279,067	$	225.46
Granted (2)	89,426	193.86
Change in awards based on performance (3)	(31,345)	241.49
Converted to shares of common stock	(60,016)	238.71
Forfeited	(1,936)	213.33
Outstanding at March 31, 2023	275,196	$	210.56

__________________________________

(1)Weighted average grant date fair value per award includes the impact of post grant modifications.

(2)The shares of common stock that may be earned is based on the total shareholder return metrics for the Company's common stock for 49,177 performance awards and financial metrics related to operating performance and leverage metrics of the Company for 40,249 performance awards.

(3)Represents the change in the number of performance awards earned based on performance achievement.

The Company used a Monte Carlo model to assess the compensation cost associated with the portion of the performance awards granted for which achievement will be determined by using total shareholder return measures. For the awards granted in 2023, the assumptions used are as follows:

	2023
Dividend yield	3.7%
Estimated volatility over the life of the plan (1)	22.9% - 26.1%
Risk free rate	4.35% - 4.61%
Estimated performance award value based on total shareholder return measure	$206.97

__________________________________

(1)Estimated volatility over the life of the plan is using 50% historical volatility and 50% implied volatility.

For the portion of the performance awards granted in 2023 for which achievement will be determined by using financial metrics, the compensation cost was based on an average grant date value of $177.83, and the Company's estimate of corporate achievement for the financial metrics.

Restricted Stock:

	Restricted stock shares	Restricted stock shares weighted average grant date fair value per share		Restricted stock shares converted from performance awards
Outstanding at December 31, 2022	161,714	$	210.97	26,370
Granted	91,037	177.75		—
Vested	(73,601)	209.34		(26,370)
Forfeited	(147)	195.71		—
Outstanding at March 31, 2023	179,003	$	194.76	—

Total employee stock-based compensation cost recognized in income was $8,018,000 and $6,887,000 for the three months ended March 31, 2023 and 2022, respectively, and total capitalized stock-based compensation cost was $3,284,000 and $2,377,000 for the three months ended March 31, 2023 and 2022, respectively. At March 31, 2023, there was a total unrecognized compensation cost of $55,569,000 for unvested restricted stock, stock options and performance awards, which is expected to be recognized over a weighted average period of 2.3 years. Forfeitures are included in compensation cost as they occur.

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Related Party Arrangements

3 Months Ended

Mar. 31, 2023

Related Party Transactions [Abstract]

Related Party Arrangements

Related Party Arrangements

Unconsolidated Entities

The Company manages unconsolidated real estate entities for which it receives asset management, property management, construction, development and redevelopment fee revenue. From these entities, the Company earned fees of $1,066,000 and $752,000 for the three months ended March 31, 2023 and 2022, respectively. In addition, the Company had outstanding receivables associated with its property and construction management roles of $3,141,000 and $2,855,000 as of March 31, 2023 and December 31, 2022, respectively.

Director Compensation

The Company recorded non-employee director compensation expense relating to restricted stock grants and deferred stock units in the amount of $615,000 and $515,000 for the three months ended March 31, 2023 and 2022, respectively, as a component of general and administrative expense. Deferred compensation relating to these restricted stock grants and deferred stock units to non-employee directors was $354,000 and $794,000 on March 31, 2023 and December 31, 2022, respectively, reported as a component of prepaid expenses and other assets on the accompanying Condensed Consolidated Balance Sheets.

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Fair Value

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Fair Value

Fair Value

Financial Instruments Carried at Fair Value

Derivative Financial Instruments

The Company uses Hedging Derivatives to manage its interest rate risk. These instruments are carried at fair value in the Company's financial statements. The Company minimizes its credit risk on these transactions by dealing with major, creditworthy financial institutions which have an A or better credit rating by the Standard & Poor's Ratings Group, and monitors the credit ratings of counterparties and the exposure of the Company to any single entity. The Company believes the likelihood of realizing losses from counterparty nonperformance is remote. Although the Company has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, such as interest rate, term to maturity and volatility, the credit valuation adjustments associated with its derivatives use Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default by itself and its counterparties. As of March 31, 2023, the Company assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined it is not significant. As a result, the Company has determined that its derivative valuations are classified in Level 2 of the fair value hierarchy.

The following table summarizes the consolidated derivative positions at March 31, 2023 (dollars in thousands):

	Non-designated Hedges			Cash Flow Hedges
	Interest Rate Caps			Interest Rate Swaps
Notional balance	$	402,670		$	200,000
Weighted average interest rate (1)	5.6		%	N/A
Weighted average capped/swapped interest rate	6.1		%	3.1		%
Earliest maturity date	January 2024			June 2023
Latest maturity date	November 2026			February 2024

____________________________________

(1)For debt hedged by interest rate caps, represents the weighted average interest rate on the hedged debt prior to any impact of the associated interest rate caps.

During the three months ended March 31, 2023, the Company entered into $200,000,000 of new forward interest rate swap agreements executed to reduce the impact of variability in interest rates on a portion of the Company's anticipated future debt issuance activity. The Company expects to cash settle the swaps and either pay or receive cash for the then current fair value. Assuming that the Company issues the debt as expected, the hedging impact from these positions will then be recognized over the life of the issued debt as a yield adjustment.

The Company had five derivatives not designated as hedges at March 31, 2023 for which the fair value changes for the three months ended March 31, 2023 and 2022 were not material.

Cash flow hedge losses reclassified from accumulated other comprehensive loss into earnings were $354,000 and $1,013,000 for the three months ended March 31, 2023 and 2022, respectively.

The Company anticipates reclassifying approximately $1,415,000 of net hedging losses from accumulated other comprehensive loss into earnings within the next 12 months as an offset to the hedged item during this period.

Redeemable Noncontrolling Interests

The Company issued and has outstanding 7,500 units of limited partnership interest in a DownREIT which can be presented for cash redemption as determined by the partnership agreement. Under the DownREIT agreement, for each limited partnership unit, the limited partner is entitled to receive cash in the amount equal to the fair value of the Company's common stock on or about the date of redemption. In lieu of cash redemption, the Company may elect to exchange such units for an equal number of shares of the Company's common stock. The limited partnership units in the DownREIT are valued using the market price of the Company's common stock, a Level 1 price under the fair value hierarchy.

Equity Securities

The Company has direct equity investments in property technology and environmentally focused companies. These investments are accounted for using the measurement alternative and are valued at the market price of observable transactions, a Level 2 price under the fair value hierarchy.

Financial Instruments Not Carried at Fair Value

Cash and Cash Equivalents

Cash and cash equivalent balances are held with various financial institutions within accounts designed to preserve principal. The Company monitors credit ratings of these financial institutions and the concentration of cash and cash equivalent balances with any one financial institution and believes the likelihood of realizing material losses related to cash and cash equivalent balances is remote. Cash and cash equivalents are carried at their face amounts, which reasonably approximate their fair values and are Level 1 within the fair value hierarchy.

Other Financial Instruments

Rents and other receivables and prepaid expenses, accounts and construction payable and accrued expenses and other liabilities are carried at their face amounts, which reasonably approximate their fair values. The Company determined that its notes receivables approximate fair value, because interest rates, yields and other terms are consistent with interest rates, yields and other terms currently available for similar instruments and are considered to be a Level 2 price within the fair value hierarchy.

Indebtedness

The Company values its fixed rate unsecured notes using quoted market prices, a Level 1 price within the fair value hierarchy. The Company values its mortgage notes payable, variable rate unsecured notes, including the Term Loan, and any outstanding amounts under the Credit Facility and Commercial Paper Program using a discounted cash flow analysis on the expected cash flows of each instrument. This analysis reflects the contractual terms of the instrument, including the period to maturity, and uses observable market-based inputs, including interest rate curves. The process also considers credit valuation adjustments to appropriately reflect the Company's nonperformance risk. The Company has concluded that the value of its mortgage notes payable, variable rate unsecured notes, Term Loan and any outstanding amounts under the Credit Facility and Commercial Paper Program are Level 2 prices as the majority of the inputs used to value its positions fall within Level 2 of the fair value hierarchy.

Financial Instruments Measured/Disclosed at Fair Value on a Recurring Basis

The following tables summarize the classification between the three levels of the fair value hierarchy of the Company's financial instruments measured/disclosed at fair value on a recurring basis (dollars in thousands):

	March 31, 2023
Description	Total Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Investments
Equity Securities	$	27,027	$	—	$	27,027	$	—
Notes Receivable, net	44,593		—		44,593		—
Non Designated Hedges
Interest Rate Caps	227		—		227		—
Interest Rate Swaps - Assets	310		—		310		—
Total Assets	$	72,157	$	—	$	72,157	$	—
Liabilities
Interest Rate Swaps - Liabilities	650		—		650		—
DownREIT units	1,261		1,261		—		—
Indebtedness
Fixed rate unsecured notes	6,535,913		6,535,913		—		—
Mortgage notes payable, Commercial Paper Program and variable rate unsecured notes	777,506		—		777,506		—
Total Liabilities	$	7,315,330	$	6,537,174	$	778,156	$	—

	December 31, 2022
Description	Total Fair Value		Quoted Prices in Active Markets for Identical Asset (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Investments
Equity Securities	$	27,027	$	—	$	27,027	$	—
Notes Receivable, net	28,860		—		28,860		—
Non Designated Hedges
Interest Rate Caps	455		—		455		—
Total Assets	$	56,342	—		56,342		—
Liabilities
DownREIT units	$	1,211	$	1,211	$	—	$	—
Indebtedness
Fixed rate unsecured notes	6,653,681		6,653,681		—		—
Mortgage notes payable, Commercial Paper Program and variable rate unsecured notes	768,984		—		768,984		—
Total Liabilities	$	7,423,876	$	6,654,892	$	768,984	$	—

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Subsequent Events

3 Months Ended

Mar. 31, 2023

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

The Company has evaluated subsequent events through the date on which this Form 10-Q was filed, the date on which these financial statements were issued, and identified the items below for discussion.

In April 2023, the Company settled the Equity Forward, issuing 2,000,000 shares of common stock, net of offering fees and discounts, for $491,912,000 or $245.96 per share.

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Organization, Basis of Presentation and Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2023

Accounting Policies [Abstract]

Organization and Basis of Presentation

Organization and Basis of Presentation

AvalonBay Communities, Inc. (the "Company," which term, unless the context otherwise requires, refers to AvalonBay Communities, Inc. together with its subsidiaries) is a Maryland corporation that has elected to be treated as a real estate investment trust ("REIT") for federal income tax purposes under the Internal Revenue Code of 1986, as amended (the "Code"). The Company focuses on the development, redevelopment, acquisition, ownership and operation of multifamily communities in New England, the New York/New Jersey metro area, the Mid-Atlantic, the Pacific Northwest, and Northern and Southern California, as well as in the Company's expansion regions of Raleigh-Durham and Charlotte, North Carolina, Southeast Florida, Dallas and Austin, Texas, and Denver, Colorado.

At March 31, 2023, the Company owned or held a direct or indirect ownership interest in 295 operating apartment communities containing 88,826 apartment homes in 12 states and the District of Columbia, of which 19 communities were under development and one was under redevelopment. The Company also owned or held a direct or indirect ownership interest in land or rights to land on which the Company expects to develop an additional 41 communities that, if developed as expected, will contain an estimated 14,290 apartment homes.

The interim unaudited financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and in conjunction with the rules and regulations of the Securities and Exchange Commission ("SEC"). Certain information and footnote disclosures normally included in financial statements required by GAAP have been condensed or omitted pursuant to such rules and regulations. These unaudited financial statements should be read in conjunction with the financial statements and notes included in the Company's Annual Report on Form 10-K for the year ended December 31, 2022. The results of operations for the three months ended March 31, 2023 are not necessarily indicative of the operating results for the full year. Management believes the disclosures are adequate to ensure the information presented is not misleading. In the opinion of management, all adjustments and eliminations, consisting only of normal, recurring adjustments necessary for a fair presentation of the financial statements for the interim periods, have been included.

Capitalized terms used without definition have meanings provided elsewhere in this Form 10-Q.

Cash, Cash Equivalents and Cash in Escrow

Cash, Cash Equivalents and Cash in Escrow

Cash and cash equivalents includes all cash and liquid investments with an original maturity of three months or less from the date acquired. Cash in escrow includes principal reserve funds that are restricted for the repayment of specified secured financing and amounts the Company has designated for planned 1031 exchange activity. The majority of the Company's cash, cash equivalents and cash in escrow are held at major commercial banks.

Earnings per Common Share

Earnings per Common Share

Basic earnings per share is computed by dividing net income attributable to common stockholders by the weighted average number of shares outstanding during the period. All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with common shareholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per share ("EPS"). Both the unvested restricted shares and other potentially dilutive common shares, and the related impact to earnings, are considered when calculating earnings per share on a diluted basis. The Company's earnings per common share are determined as follows (dollars in thousands, except per share data):

	For the three months ended March 31,
	2023		2022
Basic and diluted shares outstanding
Weighted average common shares - basic	139,766,727		139,559,904
Weighted average DownREIT units outstanding	7,500		7,500
Effect of dilutive securities	249,583		408,678
Weighted average common shares - diluted	140,023,810		139,976,082
Calculation of Earnings per Share - basic
Net income attributable to common stockholders	$	146,902	$	262,044
Net income allocated to unvested restricted shares	(267)		(523)
Net income attributable to common stockholders - basic	$	146,635	$	261,521
Weighted average common shares - basic	139,766,727		139,559,904
Earnings per common share - basic	$	1.05	$	1.87
Calculation of Earnings per Share - diluted
Net income attributable to common stockholders	$	146,902	$	262,044
Add: noncontrolling interests of DownREIT unitholders in consolidated partnerships, including discontinued operations	12		12
Net income attributable to common stockholders - diluted	$	146,914	$	262,056
Weighted average common shares - diluted	140,023,810		139,976,082
Earnings per common share - diluted	$	1.05	$	1.87

Certain options to purchase shares of common stock in the amounts of 307,625 and 9,793 were outstanding as of March 31, 2023 and 2022, respectively, but were not included in the computation of diluted earnings per share because such options were anti-dilutive for the period.

Derivative Instruments and Hedging Activities

Derivative Instruments and Hedging Activities

The Company enters into interest rate swap and interest rate cap agreements (collectively, "Hedging Derivatives") for interest rate risk management purposes and in conjunction with certain variable rate secured debt to satisfy lender requirements. The Company does not enter into Hedging Derivatives for trading or other speculative purposes. The Company assesses the effectiveness of qualifying cash flow and fair value hedges, both at inception and on an ongoing basis. The fair values of Hedging Derivatives that are in an asset position are recorded in prepaid expenses and other assets. The fair values of Hedging Derivatives that are in a liability position are included in accrued expenses and other liabilities. The Company does not present or disclose the fair value of Hedging Derivatives on a net basis. Fair value changes for derivatives that are not in qualifying hedge relationships are reported as a component of interest expense, net. For the Hedging Derivatives that qualify as effective cash flow hedges, the Company has recorded the cumulative changes in the fair value of Hedging Derivatives in accumulated other comprehensive income (loss). Amounts recorded in accumulated other comprehensive loss will be reclassified into earnings in the periods in which earnings are affected by the hedged cash flow. The effective portion of the change in fair value of the Hedging Derivatives that qualify as effective fair value hedges is reported as an adjustment to the carrying amount of the corresponding hedged item. See Note 11, “Fair Value,” for further discussion of derivative financial instruments.

Legal and Other Contingencies

Legal and Other Contingencies

The Company is involved in various claims and/or administrative proceedings that arise in the ordinary course of its business. The Company recognizes a loss associated with contingent legal matters when the loss is probable and estimable. While no assurances can be given, the Company does not currently believe that any of these outstanding litigation matters, individually or in the aggregate, will have a material adverse effect on its financial condition or results of operations.

Acquisitions of Investments in Real Estate

Acquisitions of Investments in Real Estate

The Company accounts for real estate acquisitions, by first determining if the real estate investment is the acquisition of an asset or a business combination. Under either model, the Company identifies and determines the fair value of any assets acquired, liabilities assumed and any noncontrolling interest in the acquiree. Typical assets acquired and liabilities assumed include land, building, furniture, fixtures and equipment, debt and identified intangible assets and liabilities, consisting of the value of above or below market leases and in-place leases. The Company utilizes various sources to determine fair value, including its own analysis of recently acquired and existing comparable properties in its portfolio and other market data. Consideration for acquisitions is typically in the form of cash unless otherwise disclosed. For a business combination, the Company records the assets acquired and liabilities assumed based on the fair value of each respective item. For an asset acquisition, the purchase price is allocated based on the relative fair value of the net assets. The Company expenses all applicable acquisition costs for a business combination and capitalizes all applicable acquisition costs for an asset acquisition. The Company expects that acquisitions of individual operating communities will generally be asset acquisitions.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates.

Reclassifications

Reclassifications

Certain reclassifications have been made to amounts in prior years' notes to financial statements to conform to current year presentations as a result of changes in held for sale classification, disposition activity, segment classification and classification of for-sale condominium inventory and activity.

For-Sale Condominium Inventory

For-Sale Condominium Inventory

The Company presents for-sale condominium inventory at historical cost and evaluates the condominiums for impairment when potential indicators exist, as further discussed in Note 5, "Investments." For-sale condominium inventory is included as a component of prepaid expenses and other assets on the accompanying Condensed Consolidated Balance Sheets.

Income Taxes

Income Taxes

During the three months ended March 31, 2023 and 2022, the Company recognized income tax expense of $3,560,000 and $2,471,000, respectively, primarily related to The Park Loggia.

Lessee Considerations

Lessee Considerations

The Company assesses whether a contract is or contains a lease based on whether the contract conveys the right to control the use of an identified asset, including specified portions of larger assets, for a period of time in exchange for consideration.

The Company’s leases include both fixed and variable lease payments that are based on an index or rate such as the consumer price index (CPI) or percentage rents based on total sales. Variable lease payments that are not based on an index or rate are not included in the measurement of the lease liability, but will be recognized as variable lease expense in the period in which they are incurred.

For leases that have options to extend the term or terminate the lease early, the Company only factored the impact of such options into the lease term if the option was considered reasonably certain to be exercised. The Company determined the discount rate associated with its ground and office leases on a lease by lease basis using the Company’s actual borrowing rates

as well as indicative market pricing for longer term rates and taking into consideration the remaining term of the lease agreements. For leases that are 12 months or less, the Company has elected the practical expedient to not assess these leases under Accounting Standards Codification ("ASC") 842, Leases, and recognize the lease payments on a straight line basis.

Lessor Considerations

Lessor Considerations

The Company has determined that the residential and commercial leases at its apartment communities are operating leases. For leases that include rent concessions and/or fixed and determinable rent increases, rental income is recognized on a straight-line basis over the noncancellable term of the lease, which, for residential leases, is generally one year. Some of the Company’s commercial leases have renewal options which the Company will only include in the lease term if, at the commencement of the lease, it is reasonably certain that the lessee will exercise this option.

For the Company’s leases, which are comprised of a lease component and common area maintenance as a non-lease component, the Company determined that (i) the leases are operating leases, (ii) the lease component is the predominant component and (iii) all components of its operating leases share the same timing and pattern of transfer.

Revenue and Gain Recognition

Revenue and Gain Recognition

Under ASC 606, Revenue from Contracts with Customers, the Company recognizes revenue for the transfer of goods and services to customers for consideration that the Company expects to receive. The majority of the Company’s revenue is derived from residential and commercial rental and other lease income, which are accounted for as discussed above, under "Leases". The Company's revenue streams that are not accounted for under ASC 842, Leases, include (i) management, development and other fees, (ii) non-lease related revenue and (iii) gains or losses on the sale of real estate.

The following table details the Company’s revenue disaggregated by reportable operating segment, further discussed in Note 8, “Segment Reporting,” for the three months ended March 31, 2023 and 2022. Segment information for total revenue excludes real estate assets that were sold from January 1, 2022 through March 31, 2023, or otherwise qualify as held for sale as of March 31, 2023, as described in Note 6, "Real Estate Disposition Activities" (dollars in thousands):

	Same Store		Other Stabilized		Development/ Redevelopment		Non- allocated (1)		Total
For the three months ended March 31, 2023
Management, development and other fees and other ancillary items	$	—	$	—	$	—	$	1,066	$	1,066
Non-lease related revenue (2)	2,604		1,141		36		—		3,781
Total non-lease revenue (3)	2,604		1,141		36		1,066		4,847
Lease income (4)	627,325		30,589		10,464		—		668,378
Total revenue	$	629,929	$	31,730	$	10,500	$	1,066	$	673,225
For the three months ended March 31, 2022
Management, development and other fees and other ancillary items	$	—	$	—	$	—	$	752	$	752
Non-lease related revenue (2)	2,258		410		13		—		2,681
Total non-lease revenue (3)	2,258		410		13		752		3,433
Lease income (4)	573,386		14,805		6,039		—		594,230
Total revenue	$	575,644	$	15,215	$	6,052	$	752	$	597,663

__________________________________

(1)Represents third-party property management, developer fees and miscellaneous income and other ancillary items which are not allocated to a reportable segment.

(2)Amounts include revenue streams related to leasing activities that are not considered components of a lease, and revenue streams not related to leasing activities including, but not limited to, application fees, renters insurance fees and vendor revenue sharing.

(3)Represents revenue accounted for under ASC 606.

(4)Represents residential and commercial rental and other lease income, accounted for under ASC 842.

Due to the nature and timing of the Company’s identified revenue streams, there were no material amounts of outstanding or unsatisfied performance obligations as of March 31, 2023.

Uncollectible Lease Revenue Reserves

Uncollectible Lease Revenue Reserves

The Company assesses the collectability of its lease revenue and receivables on an ongoing basis by (i) assessing the probability of receiving all lease amounts due on a lease by lease basis, (ii) reserving all amounts for those leases where collection of substantially all of the remaining lease payments is not probable and (iii) subsequently, will only recognize revenue to the extent cash is received. If the Company determines that collection of the remaining lease payments becomes probable at a future date, the Company will recognize the cumulative revenue that would have been recorded under the original lease agreement.

In addition to the specific reserves recognized under ASC 842, the Company also evaluates its lease receivables for collectability at a portfolio level under ASC 450, Contingencies – Loss Contingencies. The Company recognizes a reserve under ASC 450 when the uncollectible revenue is probable and reasonably estimable. The Company applies this reserve to the population of the Company’s revenue and receivables not specifically addressed as part of the specific ASC 842 reserve.

The Company recorded an aggregate offset to income for uncollectible lease revenue, net of amounts received from government rent relief programs, for its residential and commercial portfolios of $16,971,000 and $13,600,000 for the three months ended March 31, 2023 and 2022, respectively, under ASC 842 and ASC 450.

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Organization, Basis of Presentation and Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2023

Accounting Policies [Abstract]

Schedule of earnings per common share

The Company's earnings per common share are determined as follows (dollars in thousands, except per share data):

	For the three months ended March 31,
	2023		2022
Basic and diluted shares outstanding
Weighted average common shares - basic	139,766,727		139,559,904
Weighted average DownREIT units outstanding	7,500		7,500
Effect of dilutive securities	249,583		408,678
Weighted average common shares - diluted	140,023,810		139,976,082
Calculation of Earnings per Share - basic
Net income attributable to common stockholders	$	146,902	$	262,044
Net income allocated to unvested restricted shares	(267)		(523)
Net income attributable to common stockholders - basic	$	146,635	$	261,521
Weighted average common shares - basic	139,766,727		139,559,904
Earnings per common share - basic	$	1.05	$	1.87
Calculation of Earnings per Share - diluted
Net income attributable to common stockholders	$	146,902	$	262,044
Add: noncontrolling interests of DownREIT unitholders in consolidated partnerships, including discontinued operations	12		12
Net income attributable to common stockholders - diluted	$	146,914	$	262,056
Weighted average common shares - diluted	140,023,810		139,976,082
Earnings per common share - diluted	$	1.05	$	1.87

Disaggregation of revenue

The following table details the Company’s revenue disaggregated by reportable operating segment, further discussed in Note 8, “Segment Reporting,” for the three months ended March 31, 2023 and 2022. Segment information for total revenue excludes real estate assets that were sold from January 1, 2022 through March 31, 2023, or otherwise qualify as held for sale as of March 31, 2023, as described in Note 6, "Real Estate Disposition Activities" (dollars in thousands):

	Same Store		Other Stabilized		Development/ Redevelopment		Non- allocated (1)		Total
For the three months ended March 31, 2023
Management, development and other fees and other ancillary items	$	—	$	—	$	—	$	1,066	$	1,066
Non-lease related revenue (2)	2,604		1,141		36		—		3,781
Total non-lease revenue (3)	2,604		1,141		36		1,066		4,847
Lease income (4)	627,325		30,589		10,464		—		668,378
Total revenue	$	629,929	$	31,730	$	10,500	$	1,066	$	673,225
For the three months ended March 31, 2022
Management, development and other fees and other ancillary items	$	—	$	—	$	—	$	752	$	752
Non-lease related revenue (2)	2,258		410		13		—		2,681
Total non-lease revenue (3)	2,258		410		13		752		3,433
Lease income (4)	573,386		14,805		6,039		—		594,230
Total revenue	$	575,644	$	15,215	$	6,052	$	752	$	597,663

__________________________________

(1)Represents third-party property management, developer fees and miscellaneous income and other ancillary items which are not allocated to a reportable segment.

(2)Amounts include revenue streams related to leasing activities that are not considered components of a lease, and revenue streams not related to leasing activities including, but not limited to, application fees, renters insurance fees and vendor revenue sharing.

(3)Represents revenue accounted for under ASC 606.

(4)Represents residential and commercial rental and other lease income, accounted for under ASC 842.

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Debt (Tables)

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Summary of company's mortgage notes payable, unsecured notes and Credit Facility excluding mortgage notes secured by communities classified as held for sale

The following amounts and discussion do not include the mortgage notes related to the communities classified as held for sale, if any, as of March 31, 2023 and December 31, 2022, as shown in the accompanying Condensed Consolidated Balance Sheets (dollars in thousands) (see Note 6, "Real Estate Disposition Activities"). The weighted average interest rates in the following table for secured and unsecured notes include costs of financing such as credit enhancement fees, trustees' fees, the impact of interest rate hedges and mark-to-market adjustments.

	March 31, 2023				December 31, 2022
Fixed rate unsecured notes	$	7,250,000	3.3	%	$	7,500,000	3.3	%
Term Loan	150,000		5.9	%	150,000		5.4	%
Fixed rate mortgage notes payable - conventional and tax-exempt	270,677		3.4	%	270,677		3.4	%
Variable rate mortgage notes payable - conventional and tax-exempt	456,250		5.6	%	457,150		5.3	%
Total mortgage notes payable and unsecured notes and Term Loan	8,126,927		3.5	%	8,377,827		3.4	%
Credit Facility	—		—	%	—		—	%
Commercial paper	—		—	%	—		—	%
Total principal outstanding	8,126,927		3.5	%	8,377,827		3.4	%
Less deferred financing costs and debt discount (1)	(60,032)				(61,782)
Total	$	8,066,895			$	8,316,045

_____________________________________

(1)Excludes deferred financing costs and debt discount associated with the Credit Facility and the Commercial Paper Program which are included in prepaid expenses and other assets on the accompanying Condensed Consolidated Balance Sheets.

Scheduled payments and maturities of mortgage notes payable and unsecured notes outstanding

In addition to the Commercial Paper Program, scheduled payments and maturities of secured notes payable and unsecured notes outstanding at March 31, 2023 were as follows (dollars in thousands):

Year	Secured notes principal payments and maturities		Unsecured notes and Term Loan maturities			Stated interest rate of unsecured notes and Term Loan
2023	$	7,400	$	350,000		4.200	%
2024	9,100		300,000			3.500	%
			150,000		(1)	SOFR + 0.95%
2025	9,700		525,000			3.450	%
			300,000			3.500	%
2026	10,600		475,000			2.950	%
			300,000			2.900	%
2027	249,000		400,000			3.350	%
2028	17,600		450,000			3.200	%
			400,000			1.900	%
2029	74,750		450,000			3.300	%
2030	9,000		700,000			2.300	%
2031	9,600		600,000			2.450	%
2032	10,300		700,000			2.050	%
Thereafter	319,877		350,000			5.000	%
			350,000			3.900	%
			300,000			4.150	%
			300,000			4.350	%
	$	726,927	$	7,400,000

_________________________________

(1)     The borrowing spread to SOFR of 0.95% per annum, consists of a 0.10% SOFR adjustment plus 0.85% per annum.

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Equity (Tables)

3 Months Ended

Mar. 31, 2023

Stockholders' Equity Note [Abstract]

Summary of changes in equity

The following summarizes the changes in equity for the three months ended March 31, 2023 and 2022 (dollars in thousands):

	Common stock		Additional paid-in capital		Accumulated earnings less dividends		Accumulated other comprehensive income (loss)		Total stockholder's equity		Noncontrolling interests		Total equity
Balance at December 31, 2022	$	1,400	$	10,765,431	$	485,221	$	1,424	$	11,253,476	$	77	$	11,253,553
Net income attributable to common stockholders	—		—		146,902		—		146,902		—		146,902
Loss on cash flow hedges, net	—		—		—		(340)		(340)		—		(340)
Cash flow hedge losses reclassified to earnings	—		—		—		354		354		—		354
Change in redemption value of redeemable noncontrolling interest	—		—		(286)		—		(286)		—		(286)
Dividends declared to common stockholders ($1.65 per share)	—		—		(230,958)		—		(230,958)		—		(230,958)
Issuance of common stock, net of withholdings	1		(11,554)		1,590		—		(9,963)		—		(9,963)
Repurchase of common stock, including repurchase costs	—		(539)		(590)		—		(1,129)		—		(1,129)
Amortization of deferred compensation	—		11,123		—		—		11,123		—		11,123
Balance at March 31, 2023	$	1,401	$	10,764,461	$	401,879	$	1,438	$	11,169,179	$	77	$	11,169,256

	Common stock		Additional paid-in capital		Accumulated earnings less dividends		Accumulated other comprehensive income (loss)		Total stockholder's equity		Noncontrolling interests		Total equity
Balance at December 31, 2021	$	1,398	$	10,716,414	$	240,821	$	(26,106)	$	10,932,527	$	566	$	10,933,093
Net income attributable to common stockholders	—		—		262,044		—		262,044		—		262,044
Gain on cash flow hedges, net	—		—		—		10,155		10,155		—		10,155
Cash flow hedge losses reclassified to earnings	—		—		—		1,013		1,013		—		1,013
Change in redemption value of redeemable noncontrolling interest	—		—		(43)		—		(43)		—		(43)
Noncontrolling interest distribution and income allocation	—		—		—		—		—		(10)		(10)
Dividends declared to common stockholders ($1.59 per share)	—		—		(222,373)		—		(222,373)		—		(222,373)
Issuance of common stock, net of withholdings	1		(14,263)		(1,501)		—		(15,763)		—		(15,763)
Amortization of deferred compensation	—		9,176		—		—		9,176		—		9,176
Balance at March 31, 2022	$	1,399	$	10,711,327	$	278,948	$	(14,938)	$	10,976,736	$	556	$	10,977,292

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Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2023

Segment Reporting [Abstract]

Schedule of reconciliation of NOI to net income

A reconciliation of NOI to net income for the three months ended March 31, 2023 and 2022 is as follows (dollars in thousands):

	For the three months ended March 31,
	2023		2022
Net income	$	146,775	$	262,076
Property management and other indirect operating expenses, net of corporate income	30,784		28,113
Expensed transaction, development and other pursuit costs, net of recoveries	2,992		987
Interest expense, net	56,821		56,526
General and administrative expense	20,400		17,421
Income from unconsolidated investments	(4,845)		(317)
Depreciation expense	204,743		201,786
Income tax expense	3,560		2,471
Casualty loss	5,051		—
Loss (gain) on sale of communities	13		(148,800)
Other real estate activity	(129)		(273)
Net operating income from real estate assets sold or held for sale	(1,126)		(10,277)
Net operating income	$	465,039	$	409,713

Schedule of net operating income from real estate assets sold or held for sale, not classified as discontinued operations

The following is a summary of NOI from real estate assets sold or held for sale for the periods presented (dollars in thousands):

	For the three months ended March 31,
	2023		2022
Rental income from real estate assets sold or held for sale	$	1,483	$	16,264
Operating expenses from real estate assets sold or held for sale	(357)		(5,987)
Net operating income from real estate assets sold or held for sale	$	1,126	$	10,277

Schedule of details of segment information

The following table details the Company's segment information as of the dates specified (dollars in thousands). The segments are classified based on the individual community's status at January 1, 2023. Segment information for the three months ended March 31, 2023 and 2022 has been adjusted to exclude the real estate assets that were sold from January 1, 2022 through March 31, 2023, or otherwise qualify as held for sale as of March 31, 2023, as described in Note 6, "Real Estate Disposition Activities."

	For the three months ended
	Total revenue		NOI		Gross real estate (1)
For the period ended March 31, 2023
Same Store
New England	$	92,435	$	61,511	$	2,976,832
Metro NY/NJ	132,495		92,052		4,470,962
Mid-Atlantic	92,079		64,739		3,511,646
Southeast Florida	19,310		12,933		799,221
Denver, CO	6,847		4,944		321,744
Pacific Northwest	42,660		30,429		1,536,311
Northern California	105,145		74,788		3,771,728
Southern California	133,099		90,982		4,771,435
Other Expansion Regions	5,859		4,076		326,335
Total Same Store	629,929		436,454		22,486,214
Other Stabilized	31,730		22,348		1,518,856
Development / Redevelopment	10,500		6,237		1,781,207
Land Held for Development	N/A		N/A		177,889
Non-allocated (2)	1,066		N/A		126,069
Total	$	673,225	$	465,039	$	26,090,235
For the period ended March 31, 2022
Same Store
New England	$	82,806	$	53,448	$	2,939,442
Metro NY/NJ	118,641		81,495		4,437,153
Mid-Atlantic	85,300		58,495		3,477,547
Southeast Florida	16,459		10,482		793,309
Denver, CO	6,315		4,727		320,803
Pacific Northwest	38,851		27,476		1,526,324
Northern California	97,105		68,753		3,729,145
Southern California	124,968		86,447		4,717,572
Other Expansion Regions	5,199		3,603		321,265
Total Same Store	575,644		394,926		22,262,560
Other Stabilized	15,215		10,739		1,052,283
Development / Redevelopment	6,052		4,048		943,753
Land Held for Development	N/A		N/A		218,852
Non-allocated (2)	752		N/A		113,478
Total	$	597,663	$	409,713	$	24,590,926

__________________________________

(1)Does not include gross real estate assets held for sale of $35,556 as of March 31, 2023 and gross real estate either sold or classified as held for sale subsequent to March 31, 2022 of $433,495.

(2)Revenue represents third-party property management, developer fees and miscellaneous income and other ancillary items which are not allocated to a reportable segment.

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Stock-Based Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of stock options

Details of the outstanding awards and activity under the 2009 Plan for the three months ended March 31, 2023 are presented below.

Stock Options:

	Options	Weighted average exercise price per option
Options Outstanding at December 31, 2022	293,813	$	181.85
Granted (1)	15,744	177.83
Exercised	(1,932)	130.23
Forfeited	—	—
Options Outstanding at March 31, 2023	307,625	$	181.97
Options Exercisable at March 31, 2023	283,735	$	180.96

__________________________________

(1)Grants are from recipient elections to receive a portion of earned restricted stock awards in the form of stock options.

Schedule of nonvested performance awards granted

Performance Awards:

	Performance awards	Weighted average grant date fair value per award (1)
Outstanding at December 31, 2022	279,067	$	225.46
Granted (2)	89,426	193.86
Change in awards based on performance (3)	(31,345)	241.49
Converted to shares of common stock	(60,016)	238.71
Forfeited	(1,936)	213.33
Outstanding at March 31, 2023	275,196	$	210.56

__________________________________

(1)Weighted average grant date fair value per award includes the impact of post grant modifications.

(2)The shares of common stock that may be earned is based on the total shareholder return metrics for the Company's common stock for 49,177 performance awards and financial metrics related to operating performance and leverage metrics of the Company for 40,249 performance awards.

(3)Represents the change in the number of performance awards earned based on performance achievement.

Summary of valuation options

The Company used a Monte Carlo model to assess the compensation cost associated with the portion of the performance awards granted for which achievement will be determined by using total shareholder return measures. For the awards granted in 2023, the assumptions used are as follows:

	2023
Dividend yield	3.7%
Estimated volatility over the life of the plan (1)	22.9% - 26.1%
Risk free rate	4.35% - 4.61%
Estimated performance award value based on total shareholder return measure	$206.97

__________________________________

(1)Estimated volatility over the life of the plan is using 50% historical volatility and 50% implied volatility.

Schedule of restricted stock granted

Restricted Stock:

	Restricted stock shares	Restricted stock shares weighted average grant date fair value per share		Restricted stock shares converted from performance awards
Outstanding at December 31, 2022	161,714	$	210.97	26,370
Granted	91,037	177.75		—
Vested	(73,601)	209.34		(26,370)
Forfeited	(147)	195.71		—
Outstanding at March 31, 2023	179,003	$	194.76	—

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Fair Value (Tables)

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of summary of consolidated Hedging Derivatives, excluding derivatives executed to hedge debt on communities classified as held for sale

The following table summarizes the consolidated derivative positions at March 31, 2023 (dollars in thousands):

	Non-designated Hedges			Cash Flow Hedges
	Interest Rate Caps			Interest Rate Swaps
Notional balance	$	402,670		$	200,000
Weighted average interest rate (1)	5.6		%	N/A
Weighted average capped/swapped interest rate	6.1		%	3.1		%
Earliest maturity date	January 2024			June 2023
Latest maturity date	November 2026			February 2024

____________________________________

(1)For debt hedged by interest rate caps, represents the weighted average interest rate on the hedged debt prior to any impact of the associated interest rate caps.

Schedule of summary of classification between the three levels of the fair value hierarchy of the Company's financial instruments measured at fair value on a recurring basis

The following tables summarize the classification between the three levels of the fair value hierarchy of the Company's financial instruments measured/disclosed at fair value on a recurring basis (dollars in thousands):

	March 31, 2023
Description	Total Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Investments
Equity Securities	$	27,027	$	—	$	27,027	$	—
Notes Receivable, net	44,593		—		44,593		—
Non Designated Hedges
Interest Rate Caps	227		—		227		—
Interest Rate Swaps - Assets	310		—		310		—
Total Assets	$	72,157	$	—	$	72,157	$	—
Liabilities
Interest Rate Swaps - Liabilities	650		—		650		—
DownREIT units	1,261		1,261		—		—
Indebtedness
Fixed rate unsecured notes	6,535,913		6,535,913		—		—
Mortgage notes payable, Commercial Paper Program and variable rate unsecured notes	777,506		—		777,506		—
Total Liabilities	$	7,315,330	$	6,537,174	$	778,156	$	—

	December 31, 2022
Description	Total Fair Value		Quoted Prices in Active Markets for Identical Asset (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Investments
Equity Securities	$	27,027	$	—	$	27,027	$	—
Notes Receivable, net	28,860		—		28,860		—
Non Designated Hedges
Interest Rate Caps	455		—		455		—
Total Assets	$	56,342	—		56,342		—
Liabilities
DownREIT units	$	1,211	$	1,211	$	—	$	—
Indebtedness
Fixed rate unsecured notes	6,653,681		6,653,681		—		—
Mortgage notes payable, Commercial Paper Program and variable rate unsecured notes	768,984		—		768,984		—
Total Liabilities	$	7,423,876	$	6,654,892	$	768,984	$	—

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Organization, Basis of Presentation and Significant Accounting Policies - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) community home state	Mar. 31, 2022 USD ($)
Accounting Policies [Abstract]
Number of operating apartment communities	295
Number of apartment homes included in operating apartment communities owned | home	88,826
Number of states where operating apartment communities owned are located | state	12
Number of owned communities under construction	19
Number of owned communities under reconstruction	1
Communities under development rights	41
Estimated number of apartment homes in communities to be developed | home	14,290
Income tax expense | $	$ 3,560	$ 2,471
Uncollectible lease revenue | $	$ 16,971	$ 13,600

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Organization, Basis of Presentation and Significant Accounting Policies - Earnings per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Basic and diluted shares outstanding
Weighted average common shares - basic (in shares)	139,766,727	139,559,904
Weighted average DownREIT units outstanding (in shares)	7,500	7,500
Effect of dilutive securities (in shares)	249,583	408,678
Weighted average common shares - diluted (in shares)	140,023,810	139,976,082
Calculation of Earnings per Share - basic
Net income attributable to common stockholders	$ 146,902	$ 262,044
Net income allocated to unvested restricted shares	(267)	(523)
Net income attributable to common stockholders - basic	$ 146,635	$ 261,521
Weighted average common shares - basic (in shares)	139,766,727	139,559,904
Earnings per common share - basic (in dollars per share)	$ 1.05	$ 1.87
Calculation of Earnings per Share - diluted
Net income attributable to common stockholders	$ 146,902	$ 262,044
Add: noncontrolling interests of DownREIT unitholders in consolidated partnerships, including discontinued operations	12	12
Net income attributable to common stockholders - diluted	$ 146,914	$ 262,056
Weighted average common shares - diluted (in shares)	140,023,810	139,976,082
Earnings per common share - diluted (in dollars per share)	$ 1.05	$ 1.87
Antidilutive securities excluded from the computation of earnings per share (in shares)	307,625	9,793

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Organization, Basis of Presentation and Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Management, development and other fees	$ 1,066	$ 752
Rental and other income	673,642	613,175
Total revenue	674,708	613,927
Operating Segments | Same Store
Disaggregation of Revenue [Line Items]
Total revenue	629,929	575,644
Operating Segments | Other Stabilized
Disaggregation of Revenue [Line Items]
Total revenue	31,730	15,215
Non-allocated
Disaggregation of Revenue [Line Items]
Total revenue	1,066	752
Continuing Operations
Disaggregation of Revenue [Line Items]
Management, development and other fees	4,847	3,433
Rental and other income	668,378	594,230
Total revenue	673,225	597,663
Continuing Operations | Management, development and other fees and other ancillary items
Disaggregation of Revenue [Line Items]
Management, development and other fees	1,066	752
Continuing Operations | Non-lease related revenue
Disaggregation of Revenue [Line Items]
Management, development and other fees	3,781	2,681
Continuing Operations | Operating Segments | Same Store
Disaggregation of Revenue [Line Items]
Management, development and other fees	2,604	2,258
Rental and other income	627,325	573,386
Total revenue	629,929	575,644
Continuing Operations | Operating Segments | Other Stabilized
Disaggregation of Revenue [Line Items]
Management, development and other fees	1,141	410
Rental and other income	30,589	14,805
Total revenue	31,730	15,215
Continuing Operations | Operating Segments | Development/ Redevelopment
Disaggregation of Revenue [Line Items]
Management, development and other fees	36	13
Rental and other income	10,464	6,039
Total revenue	10,500	6,052
Continuing Operations | Operating Segments | Management, development and other fees and other ancillary items | Same Store
Disaggregation of Revenue [Line Items]
Management, development and other fees	0	0
Continuing Operations | Operating Segments | Management, development and other fees and other ancillary items | Other Stabilized
Disaggregation of Revenue [Line Items]
Management, development and other fees	0	0
Continuing Operations | Operating Segments | Management, development and other fees and other ancillary items | Development/ Redevelopment
Disaggregation of Revenue [Line Items]
Management, development and other fees	0	0
Continuing Operations | Operating Segments | Non-lease related revenue | Same Store
Disaggregation of Revenue [Line Items]
Management, development and other fees	2,604	2,258
Continuing Operations | Operating Segments | Non-lease related revenue | Other Stabilized
Disaggregation of Revenue [Line Items]
Management, development and other fees	1,141	410
Continuing Operations | Operating Segments | Non-lease related revenue | Development/ Redevelopment
Disaggregation of Revenue [Line Items]
Management, development and other fees	36	13
Continuing Operations | Non-allocated
Disaggregation of Revenue [Line Items]
Management, development and other fees	1,066	752
Rental and other income	0	0
Total revenue	1,066	752
Continuing Operations | Non-allocated | Management, development and other fees and other ancillary items
Disaggregation of Revenue [Line Items]
Management, development and other fees	1,066	752
Continuing Operations | Non-allocated | Non-lease related revenue
Disaggregation of Revenue [Line Items]
Management, development and other fees	$ 0	$ 0

XML

Interest Capitalized (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Interest Capitalized
Capitalized interest during the development and redevelopment of real estate assets	$ 11,018	$ 7,100

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Debt - Summary of Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Notes Payable, Unsecured Notes and Credit Facility
Credit Facility	$ 0	$ 0
Commercial paper	0	0
Long-Term Debt, Gross	8,126,927	8,377,827
Deferred financing costs and debt discount	(60,032)	(61,782)
Total	$ 8,066,895	$ 8,316,045
Weighted average interest rate, debt (as a percent)	3.50%	3.40%
Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 7,400,000
Secured Debt
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	726,927
Mortgage Notes Payable, Unsecured Notes, and Term Loans
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 8,126,927	$ 8,377,827
Weighted average interest rate, debt (as a percent)	3.50%	3.40%
Fixed rate unsecured notes | Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Fixed rate notes	$ 7,250,000	$ 7,500,000
Weighted average interest rate, debt (as a percent)	3.30%	3.30%
Term Loan | Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Variable rate notes	$ 150,000	$ 150,000
Weighted average interest rate, debt (as a percent)	5.90%	5.40%
Fixed rate mortgage notes payable - conventional and tax-exempt | Secured Debt
Notes Payable, Unsecured Notes and Credit Facility
Fixed rate notes	$ 270,677	$ 270,677
Weighted average interest rate, debt (as a percent)	3.40%	3.40%
Variable rate mortgage notes payable - conventional and tax-exempt | Secured Debt
Notes Payable, Unsecured Notes and Credit Facility
Variable rate notes	$ 456,250	$ 457,150
Weighted average interest rate, debt (as a percent)	5.60%	5.30%
Credit Facility
Notes Payable, Unsecured Notes and Credit Facility
Weighted average interest rate, debt (as a percent)	0.00%	0.00%
Commercial paper
Notes Payable, Unsecured Notes and Credit Facility
Weighted average interest rate, debt (as a percent)	0.00%	0.00%

XML

Debt - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Notes Payable, Unsecured Notes and Credit Facility
Repayments of unsecured debt	$ 250,000,000	$ 100,000,000
Commercial paper, maximum borrowing capacity	500,000,000
Net carrying value of apartment communities and improved land parcels securing debt	19,043,740,000		$ 18,992,807,000
Asset Pledged as Collateral | Notes Payable, Other Payables
Notes Payable, Unsecured Notes and Credit Facility
Net carrying value of apartment communities and improved land parcels securing debt	1,174,526,000
Notes Payable 2.850 Maturities 2023 | Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Repayments of unsecured debt	250,000,000
Credit Facility
Notes Payable, Unsecured Notes and Credit Facility
Outstanding balance of letters of credit	1,914,000		1,914,000
Amount available under commercial paper program and letters of credit	2,248,086,000
Available borrowing capacity	$ 2,250,000,000
Annual facility fee, percentage	0.125%
Credit Facility | Minimum
Notes Payable, Unsecured Notes and Credit Facility
Annual facility fee, percentage	0.10%
Credit Facility | Maximum
Notes Payable, Unsecured Notes and Credit Facility
Annual facility fee, percentage	0.30%
Credit Facility | Secured Overnight Financing Rate (SOFR)
Notes Payable, Unsecured Notes and Credit Facility
Current interest rate (as a percent)	5.70%
Debt instrument, basis spread on variable rate (as a percent)	0.825%
Credit Facility | Secured Overnight Financing Rate (SOFR) | Minimum
Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)	0.65%
Credit Facility | Secured Overnight Financing Rate (SOFR) | Maximum
Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)	1.40%
Credit Facility | SOFR Adjustment
Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)	0.10%
Credit Facility | SOFR Base Rate
Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)	0.725%
Other Letter of Credit
Notes Payable, Unsecured Notes and Credit Facility
Outstanding balance of letters of credit	$ 50,682,000		$ 48,740,000

XML

Debt - Scheduled Payments and Maturities of Debt (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Secured notes
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 726,927
Secured notes | Notes Payable Maturities 2023
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	7,400
Secured notes | Notes Payable Maturities 2024
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	9,100
Secured notes | Notes Payable Maturities 2025
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	9,700
Secured notes | Notes Payable Maturities 2026
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	10,600
Secured notes | Notes Payable Maturities 2027
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	249,000
Secured notes | Notes Payable Maturities 2028
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	17,600
Secured notes | Notes Payable Maturities 2029
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	74,750
Secured notes | Notes Payable Maturities 2030
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	9,000
Secured notes | Notes Payable Maturities 2031
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	9,600
Secured notes | Notes Payable Maturities 2032
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	10,300
Secured notes | Notes Payable Maturities Thereafter
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	319,877
Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 7,400,000
Unsecured notes | Notes Payable Maturities 2023
Notes Payable, Unsecured Notes and Credit Facility
Stated interest rate of unsecured notes (as a percent)	2.85%
Unsecured notes | Notes payable 4.200 Maturities 2023
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 350,000
Stated interest rate of unsecured notes (as a percent)	4.20%
Unsecured notes | Notes Payable Maturities 2024
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 300,000
Stated interest rate of unsecured notes (as a percent)	3.50%
Unsecured notes | Variable Rate Unsecured Term Loan $150 Million
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 150,000
Unsecured notes | Variable Rate Unsecured Term Loan $150 Million | Secured Overnight Financing Rate (SOFR)
Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)	0.95%
Unsecured notes | Variable Rate Unsecured Term Loan $150 Million | SOFR Adjustment
Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)	0.10%
Unsecured notes | Variable Rate Unsecured Term Loan $150 Million | SOFR Base Rate
Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)	0.85%
Unsecured notes | Notes Payable 3.450 Maturities 2025
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 525,000
Stated interest rate of unsecured notes (as a percent)	3.45%
Unsecured notes | Notes Payable 3.500 Maturities 2025
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 300,000
Stated interest rate of unsecured notes (as a percent)	3.50%
Unsecured notes | Notes Payable 2.950 Maturities 2026
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 475,000
Stated interest rate of unsecured notes (as a percent)	2.95%
Unsecured notes | Notes Payable 2.900 Maturities 2026
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 300,000
Stated interest rate of unsecured notes (as a percent)	2.90%
Unsecured notes | Notes Payable Maturities 2027
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 400,000
Stated interest rate of unsecured notes (as a percent)	3.35%
Unsecured notes | Notes Payable Maturities 2028
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 450,000
Stated interest rate of unsecured notes (as a percent)	3.20%
Unsecured notes | Notes Payable 1.900 Maturities 2028
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 400,000
Stated interest rate of unsecured notes (as a percent)	1.90%
Unsecured notes | Notes Payable Maturities 2029
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 450,000
Stated interest rate of unsecured notes (as a percent)	3.30%
Unsecured notes | Notes Payable Maturities 2030
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 700,000
Stated interest rate of unsecured notes (as a percent)	2.30%
Unsecured notes | Notes Payable Maturities 2031
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 600,000
Stated interest rate of unsecured notes (as a percent)	2.45%
Unsecured notes | Notes Payable Maturities 2032
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 700,000
Stated interest rate of unsecured notes (as a percent)	2.05%
Unsecured notes | Notes Payable Maturities 2033
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 350,000
Stated interest rate of unsecured notes (as a percent)	5.00%
Unsecured notes | Notes Payable Maturities 2046
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 350,000
Stated interest rate of unsecured notes (as a percent)	3.90%
Unsecured notes | Notes Payable Maturities 2047
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 300,000
Stated interest rate of unsecured notes (as a percent)	4.15%
Unsecured notes | Notes Payable Maturities 2048
Notes Payable, Unsecured Notes and Credit Facility
Notes Payable	$ 300,000
Stated interest rate of unsecured notes (as a percent)	4.35%

XML

Equity - Changes in Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Changes in equity
Beginning Balance	$ 11,253,553	$ 10,933,093
Net income attributable to common stockholders	146,902	262,044
(Loss) gain on cash flow hedges	(340)	10,155
Cash flow hedge losses reclassified to earnings	354	1,013
Change in redemption value of redeemable noncontrolling interest	(286)	(43)
Noncontrolling interest distribution and income allocation		(10)
Dividends declared to common stockholders	(230,958)	(222,373)
Issuance of common stock, net of withholdings	(9,963)	(15,763)
Repurchase of common stock, including repurchase costs	(1,129)
Amortization of deferred compensation	11,123	9,176
Ending Balance	$ 11,169,256	$ 10,977,292
Dividends declared to common stockholders (in dollars per share)	$ 1.65	$ 1.59
Common stock
Changes in equity
Beginning Balance	$ 1,400	$ 1,398
Issuance of common stock, net of withholdings	1	1
Ending Balance	1,401	1,399
Additional paid-in capital
Changes in equity
Beginning Balance	10,765,431	10,716,414
Issuance of common stock, net of withholdings	(11,554)	(14,263)
Repurchase of common stock, including repurchase costs	(539)
Amortization of deferred compensation	11,123	9,176
Ending Balance	10,764,461	10,711,327
Accumulated earnings less dividends
Changes in equity
Beginning Balance	485,221	240,821
Net income attributable to common stockholders	146,902	262,044
Change in redemption value of redeemable noncontrolling interest	(286)	(43)
Dividends declared to common stockholders	(230,958)	(222,373)
Issuance of common stock, net of withholdings	1,590	(1,501)
Repurchase of common stock, including repurchase costs	(590)
Ending Balance	401,879	278,948
Accumulated other comprehensive income (loss)
Changes in equity
Beginning Balance	1,424	(26,106)
(Loss) gain on cash flow hedges	(340)	10,155
Cash flow hedge losses reclassified to earnings	354	1,013
Ending Balance	1,438	(14,938)
Total stockholder's equity
Changes in equity
Beginning Balance	11,253,476	10,932,527
Net income attributable to common stockholders	146,902	262,044
(Loss) gain on cash flow hedges	(340)	10,155
Cash flow hedge losses reclassified to earnings	354	1,013
Change in redemption value of redeemable noncontrolling interest	(286)	(43)
Dividends declared to common stockholders	(230,958)	(222,373)
Issuance of common stock, net of withholdings	(9,963)	(15,763)
Repurchase of common stock, including repurchase costs	(1,129)
Amortization of deferred compensation	11,123	9,176
Ending Balance	11,169,179	10,976,736
Noncontrolling interests
Changes in equity
Beginning Balance	77	566
Noncontrolling interest distribution and income allocation		(10)
Ending Balance	$ 77	$ 556

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Equity - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Jul. 31, 2020
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	280,000,000		280,000,000
Preferred stock, shares authorized (in shares)	50,000,000		50,000,000
Common stock issued in connection with stock options exercised (in shares)	1,932
Common stock issued through the dividend reinvestment plan (in shares)	847	605
Number of shares of stock grants withheld (in shares)	60,693	69,721
Repurchases of shares (in shares)	7,000
Treasury stock acquired (in dollars per share)	$ 161.29
Stock repurchase program, remaining authorized amount	$ 315,019,000
Forward contract indexed to issuer's equity (in shares)	2,000,000
Forward contract indexed to equity, settlement fair value (in dollars per share)	$ 247.30
2020 Stock Repurchase Program
Class of Stock [Line Items]
Stock repurchase program, authorized amount				$ 500,000,000
Continuous Equity Program CEP V
Class of Stock [Line Items]
Maximum value of shares of common stock that can be sold (in dollars)	$ 1,000,000,000
Common stock sold under CEP V (in shares)	0
Common stock value, remaining to be authorized under continuous equity program	$ 705,961,000
Maximum | Continuous Equity Program CEP V
Class of Stock [Line Items]
Percentage of compensation received by sales agent	1.50%
Restricted Stock and Common Stock Converted from Performance Shares
Class of Stock [Line Items]
Equity instruments granted (in shares)	151,053	132,135
Restricted stock
Class of Stock [Line Items]
Equity instruments granted (in shares)	91,037	78,082
Stock issued during period, shares, share-based compensation, forfeited (in shares)	147	1,181

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Investments - Narrative (Details)	3 Months Ended
	Mar. 31, 2023 USD ($) loan entity	Mar. 31, 2022 USD ($)
Equity method investment
Number of mezzanine loans | loan	3
Initial commitment for mezzanine loan	$ 92,375,000
Weighted average rate of return on other commitments	9.80%
Outstanding funding on mezzanine loans	$ 42,074,000
Nonoperating expense related to development pursuits	(2,992,000)	$ (987,000)
Impairment losses on long-lived assets	0	0
Casualty loss	5,051,000	0
Other than temporary losses on investments	0	0
Northeast and California Regions | Severe Weather
Equity method investment
Casualty loss	5,051,000
The Park Loggia
Equity method investment
Casualty loss	0	0
Land Parcel
Equity method investment
Casualty loss	$ 0	$ 0
Unconsolidated real estate entities
Equity method investment
Number of unconsolidated real estate entities | entity	6
Minimum | Unconsolidated real estate entities
Equity method investment
Ownership percentage	20.00%
Maximum | Unconsolidated real estate entities
Equity method investment
Ownership percentage	50.00%

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Real Estate Disposition Activities (Details) ft² in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) residential_condominium community ft²	Mar. 31, 2022 USD ($) residential_condominium	Dec. 31, 2022 USD ($)
Summary of income from discontinued operations
Number of communities held for sale | community	1
Number of residential condominium units sold | residential_condominium	1	15
Other selling, general and administrative expense	$ 202	$ 766
Number of residential condominiums remaining to be sold | residential_condominium	8
Aggregate carrying value of real estate	$ 28,913		$ 32,532
The Park Loggia
Summary of income from discontinued operations
Number of residential condominium units | residential_condominium	172
Square feet of commercial space | ft²	66
Proceeds from sale of real estate	$ 3,907	40,336
Gain on for-sale condominiums	$ 28	$ 1,002

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Commitments and Contingencies - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) community property Lease	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Lessee, Lease, Description [Line Items]
Number of office leases | Lease	13
Operating lease assets	$ 109,976		$ 114,977
Operating lease obligation	137,359		142,602
Operating lease expense	4,005	$ 3,706
Finance lease asset	28,282		28,354
Finance lease obligation	$ 20,055		$ 20,069
Properties on Land Subject to Land Leases
Lessee, Lease, Description [Line Items]
Number of operating apartment communities owned | community	7
Number of commercial properties owned | property	2
Assets Held under Operating Leases
Lessee, Lease, Description [Line Items]
Number of operating apartment communities owned | community	6
Assets Held under Finance Leases
Lessee, Lease, Description [Line Items]
Number of operating apartment communities owned | community	1
Number of finance leases for parking garages adjacent to communities | Lease	4

XML

Segment Reporting - Reconciliation of NOI to Net Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Reconciliation of NOI to net income
Net income	$ 146,775	$ 262,076
Property management and other indirect operating expenses, net of corporate income	30,784	28,113
Expensed transaction, development and other pursuit costs, net of recoveries	2,992	987
Interest expense, net	56,821	56,526
General and administrative expense	20,400	17,421
Income from unconsolidated investments	(4,845)	(317)
Depreciation expense	204,743	201,786
Income tax expense	3,560	2,471
Casualty loss	5,051	0
(Loss) gain on sale of communities	13	(148,800)
Other real estate activity	(129)	(273)
Net operating income from real estate assets sold or held for sale	(1,126)	(10,277)
Net operating income	$ 465,039	$ 409,713
Non-Apartment Components Of Mixed-Use Communities And Other Nonresidential Operations | Operating Income (Loss) | Product Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as a percent)	1.90%	2.00%

XML

Segment Reporting - NOI from Real Estate Assets Sold or Held for Sale (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting [Abstract]
Rental income from real estate assets sold or held for sale	$ 1,483	$ 16,264
Operating expenses from real estate assets sold or held for sale	(357)	(5,987)
Net operating income from real estate assets sold or held for sale	$ 1,126	$ 10,277

XML

Segment Reporting - Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting
Total revenue	$ 674,708	$ 613,927
NOI	465,039	409,713
Gross real estate	26,090,235	24,590,926
Gross real estate assets held for sale	35,556
Operating Segments | Same Store
Segment Reporting
Total revenue	629,929	575,644
NOI	436,454	394,926
Gross real estate	22,486,214	22,262,560
Operating Segments | Same Store | New England
Segment Reporting
Total revenue	92,435	82,806
NOI	61,511	53,448
Gross real estate	2,976,832	2,939,442
Operating Segments | Same Store | Metro NY/NJ
Segment Reporting
Total revenue	132,495	118,641
NOI	92,052	81,495
Gross real estate	4,470,962	4,437,153
Operating Segments | Same Store | Mid-Atlantic
Segment Reporting
Total revenue	92,079	85,300
NOI	64,739	58,495
Gross real estate	3,511,646	3,477,547
Operating Segments | Same Store | Southeast Florida
Segment Reporting
Total revenue	19,310	16,459
NOI	12,933	10,482
Gross real estate	799,221	793,309
Operating Segments | Same Store | Denver, CO
Segment Reporting
Total revenue	6,847	6,315
NOI	4,944	4,727
Gross real estate	321,744	320,803
Operating Segments | Same Store | Pacific Northwest
Segment Reporting
Total revenue	42,660	38,851
NOI	30,429	27,476
Gross real estate	1,536,311	1,526,324
Operating Segments | Same Store | Northern California
Segment Reporting
Total revenue	105,145	97,105
NOI	74,788	68,753
Gross real estate	3,771,728	3,729,145
Operating Segments | Same Store | Southern California
Segment Reporting
Total revenue	133,099	124,968
NOI	90,982	86,447
Gross real estate	4,771,435	4,717,572
Operating Segments | Same Store | Other Expansion Regions
Segment Reporting
Total revenue	5,859	5,199
NOI	4,076	3,603
Gross real estate	326,335	321,265
Operating Segments | Other Stabilized
Segment Reporting
Total revenue	31,730	15,215
NOI	22,348	10,739
Gross real estate	1,518,856	1,052,283
Operating Segments | Development / Redevelopment
Segment Reporting
Total revenue	10,500	6,052
NOI	6,237	4,048
Gross real estate	1,781,207	943,753
Operating Segments | Disposals
Segment Reporting
Gross real estate		433,495
Land Held for Future Development
Segment Reporting
Gross real estate	177,889	218,852
Non-allocated
Segment Reporting
Total revenue	1,066	752
Gross real estate	126,069	113,478
Continuing Operations
Segment Reporting
Total revenue	673,225	597,663
Continuing Operations | Operating Segments | Same Store
Segment Reporting
Total revenue	629,929	575,644
Continuing Operations | Operating Segments | Other Stabilized
Segment Reporting
Total revenue	31,730	15,215
Continuing Operations | Non-allocated
Segment Reporting
Total revenue	$ 1,066	$ 752

XML

Stock-Based Compensation Plans - Stock Options and Performance Awards (Details) - $ / shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Options
Exercised (in shares)	(1,932)
Employee and Directors Stock Options | Stock Option and Incentive Plan 2009
Options
Options Outstanding at beginning of period (in shares)	293,813
Granted (in shares)	15,744
Exercised (in shares)	(1,932)
Forfeited (in shares)	0
Options Outstanding at end of period (in shares)	307,625
Options Exerciseable (in shares)	283,735
Weighted average exercise price per option
Weighted average exercise price of options outstanding at beginning of period (in dollars per share)	$ 181.85
Weighted average exercise price of options granted (in dollars per share)	177.83
Weighted average exercise price of options exercised (in dollars per share)	130.23
Weighted average exercise price of options forfeited (in dollars per share)	0
Weighted average exercise price of options outstanding at end of period (in dollars per share)	181.97
Weighted average exercise price of options exercisable (in dollars per share)	$ 180.96
Performance Shares
Performance awards
Equity instruments outstanding at the beginning of the period (in shares)	279,067
Equity instruments granted (in shares)	89,426
Change in awards based on performance (in shares)	(31,345)
Converted to shares of common stock (in shares)	(60,016)	(54,053)
Forfeited (in shares)	(1,936)
Equity instruments outstanding at the end of the period (in shares)	275,196
Weighted average grant date fair value per award
Equity instruments outstanding at the beginning of the period (in dollars per share)	$ 225.46
Grant date fair value per share (in dollars per share)	193.86
Change in awards based on performance (in dollars per share)	241.49
Converted to shares of common stock (in dollars per share)	238.71
Forfeited (in dollars per share)	213.33
Equity instruments outstanding at the end of the period (in dollars per share)	$ 210.56
Grants in period based on total shareholder metrics (in shares)	49,177
Grants in period based on financial metrics (in shares)	40,249

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Stock-Based Compensation Plans - Valuation Assumptions (Details) - Performance Shares	3 Months Ended
	Mar. 31, 2023 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	3.70%
Estimated volatility over the life of the plan, minimum (as a percent)	22.90%
Estimated volatility over the life of the plan, maximum (as a percent)	26.10%
Risk-free rate, minimum (as a percent)	4.35%
Risk-free rate, maximum (as a percent)	4.61%
Estimated performance award value based on total shareholder return measure (in dollars per share)	$ 206.97
Historical volatility (as a percent)	50.00%
Implied volatility (as a percent)	50.00%

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Stock-Based Compensation Plans - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Additional disclosures
Stock-based compensation expense	$ 8,018	$ 6,887
Capitalized stock-based compensation cost	$ 3,284	$ 2,377
Performance Shares
Additional disclosures
Weighted average grant date value (in dollars per share)	$ 177.83
Restricted stock and restricted stock units
Additional disclosures
Unrecognized compensation cost	$ 55,569
Weighted average period for recognition of unrecognized compensation cost	2 years 3 months 18 days

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Stock-Based Compensation Plans - Restricted Stock Activity (Details) - $ / shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Restricted stock
Restricted stock shares
Equity instruments outstanding at the beginning of the period (in shares)	161,714
Granted (in shares)	91,037	78,082
Vested (in shares)	(73,601)
Forfeited (in shares)	(147)
Equity instruments outstanding at the end of the period (in shares)	179,003
Restricted stock shares weighted average grant date fair value per share
Equity instruments outstanding at the beginning of the period (in dollars per share)	$ 210.97
Grant date fair value per share (in dollars per share)	177.75
Vested (in dollars per share)	209.34
Forfeited (in dollars per share)	195.71
Equity instruments outstanding at the end of the period (in dollars per share)	$ 194.76
Restricted Stock Converted From Performance Shares
Restricted stock shares
Equity instruments outstanding at the beginning of the period (in shares)	26,370
Granted (in shares)	0
Vested (in shares)	(26,370)
Forfeited (in shares)	0
Equity instruments outstanding at the end of the period (in shares)	0

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Related Party Arrangements (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Related Party Arrangements
Management, development and other fees	$ 1,066	$ 752
Compensation expense	8,018	6,887
Unconsolidated real estate entities
Related Party Arrangements
Outstanding receivables	3,141		$ 2,855
Non employee director | Restricted stock and deferred stock awards
Related Party Arrangements
Compensation expense	615	$ 515
Amount of deferred compensation	$ 354		$ 794

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Fair Value - Consolidated Derivative Positions (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Not Designated as Hedging Instrument | Interest Rate Cap [Member]
Derivative instruments and Hedging Activities
Derivative, Notional Amount	$ 402,670
Weighted average interest rate	5.60%
Derivative, Average Cap Interest Rate	6.10%
Cash Flow Hedges | Interest Rate Swap [Member]
Derivative instruments and Hedging Activities
Derivative, Notional Amount	$ 200,000
Derivative, Average Cap Interest Rate	3.10%

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Fair Value - Narrative (Details)	3 Months Ended
	Mar. 31, 2023 USD ($) derivative shares	Mar. 31, 2022 USD ($) shares
Derivative instruments and Hedging Activities
Cash flow hedge losses reclassified to earnings	$ 354,000	$ 1,013,000
Weighted average DownREIT units outstanding (in shares) | shares	7,500	7,500
Cash Flow Hedges | Interest Rate Swap [Member]
Derivative instruments and Hedging Activities
Forward interest rate swap agreements entered in period	$ 200,000,000
Reclassification out of Accumulated Other Comprehensive Income
Derivative instruments and Hedging Activities
Estimated hedging losses to be reclassified from accumulated other comprehensive loss into earnings within the next twelve months	$ 1,415,000
Not Designated as Hedging Instrument
Derivative instruments and Hedging Activities
Number of derivative instruments held | derivative	5

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Fair Value - Classification Between the Three Levels of the Fair Value Hierarchy (Details) - Recurring basis - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Estimate of Fair Value Measurement
Financial Instruments Measured/Discussed at Fair Value
Equity Securities	$ 27,027	$ 27,027
Notes Receivable, net	44,593	28,860
Total Assets	72,157	56,342
DownREIT units	1,261	1,211
Total Liabilities	7,315,330	7,423,876
Unsecured notes | Estimate of Fair Value Measurement
Financial Instruments Measured/Discussed at Fair Value
Indebtedness	6,535,913	6,653,681
Secured Debt, Commercial Paper Program and Variable Rate Unsecured Indebtedness | Estimate of Fair Value Measurement
Financial Instruments Measured/Discussed at Fair Value
Indebtedness	777,506	768,984
Interest Rate Cap [Member] | Not Designated as Hedging Instrument | Estimate of Fair Value Measurement
Financial Instruments Measured/Discussed at Fair Value
Derivative assets	227	455
Interest Rate Swap [Member] | Cash Flow Hedges | Estimate of Fair Value Measurement
Financial Instruments Measured/Discussed at Fair Value
Derivative assets	310
Derivative liability	650
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Instruments Measured/Discussed at Fair Value
Total Assets	0	0
DownREIT units	1,261	1,211
Total Liabilities	6,537,174	6,654,892
Quoted Prices in Active Markets for Identical Assets (Level 1) | Unsecured notes
Financial Instruments Measured/Discussed at Fair Value
Indebtedness	6,535,913	6,653,681
Significant Other Observable Inputs (Level 2)
Financial Instruments Measured/Discussed at Fair Value
Equity Securities	27,027	27,027
Notes Receivable, net	44,593	28,860
Total Assets	72,157	56,342
Total Liabilities	778,156	768,984
Significant Other Observable Inputs (Level 2) | Secured Debt, Commercial Paper Program and Variable Rate Unsecured Indebtedness
Financial Instruments Measured/Discussed at Fair Value
Indebtedness	777,506	768,984
Significant Other Observable Inputs (Level 2) | Interest Rate Cap [Member] | Not Designated as Hedging Instrument
Financial Instruments Measured/Discussed at Fair Value
Derivative assets	227	455
Significant Other Observable Inputs (Level 2) | Interest Rate Swap [Member] | Cash Flow Hedges
Financial Instruments Measured/Discussed at Fair Value
Derivative assets	310
Derivative liability	650
Significant Unobservable Inputs (Level 3)
Financial Instruments Measured/Discussed at Fair Value
Total Assets	0	0
Total Liabilities	$ 0	$ 0

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Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended
	Apr. 30, 2023	Mar. 31, 2023
Subsequent Event [Line Items]
Forward contract indexed to issuer's equity (in shares)		2,000,000
Forward contract indexed to equity, settlement fair value (in dollars per share)		$ 247.30
Subsequent Event
Subsequent Event [Line Items]
Forward contract indexed to issuer's equity (in shares)	2,000,000
Net proceeds of forward contract indexed to issuer's equity	$ 491,912
Forward contract indexed to equity, settlement fair value (in dollars per share)	$ 245.96