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Consolidated Balance Sheets - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
ASSETS |  |  |
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $6,702,830 and $6,592,019 at December 31, 2021 and December 31, 2020, respectively) | $ 23,752,630 |  | $ 22,969,110
Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at December 31, 2021 and December 31, 2020, respectively) | 237,507 |  | 237,393
Right of use assets - operating leases | 169,778 | [1] | 146,406
Less: accumulated depreciation (amounts related to VIEs of $(1,283,060) and $(1,158,548) at December 31, 2021 and December 31, 2020, respectively) | (5,883,961) |  | (5,534,102)
Real estate and development in process, net | 18,275,954 |  | 17,818,807
Cash and cash equivalents (amounts related to VIEs of $300,937 and $340,642 at December 31, 2021 and December 31, 2020, respectively) | 452,692 |  | 1,668,742
Cash held in escrows | 48,466 |  | 50,587
Investments in securities | 43,632 |  | 39,457
Tenant and other receivables, net (amounts related to VIEs of $6,824 and $10,911 at December 31, 2021 and December 31, 2020, respectively) | 70,186 |  | 77,411
Related party note receivable, net | 78,336 |  | 77,552
Notes receivable, net | 9,641 |  | 18,729
Accrued rental income, net (amounts related to VIEs of $357,395 and $336,594 at December 31, 2021 and December 31, 2020, respectively) | 1,226,745 |  | 1,122,502
Deferred charges, net (amounts related to VIEs of $174,637 and $183,306 at December 31, 2021 and December 31, 2020, respectively) | 618,798 |  | 640,085
Prepaid expenses and other assets (amounts related to VIEs of $29,668 and $13,137 at December 31, 2021 and December 31, 2020, respectively) | 57,811 |  | 33,840
Investments in unconsolidated joint ventures | 1,482,997 |  | 1,310,478
Total assets | 22,365,258 |  | 22,858,190
Liabilities: |  |  |
Secured Debt | 3,267,914 |  | 2,909,081
Unsecured senior notes, net | 9,483,695 |  | 9,639,287
Unsecured line of credit | 145,000 |  | 0
Unsecured term loan, net | 0 |  | 499,390
Lease liabilities - finance leases (amounts related to VIEs of $20,458 and $20,306 at December 31, 2021 and December 31, 2020, respectively) | 244,421 |  | 236,492
Lease liabilities - operating leases | 204,561 |  | 201,713
Accounts payable and accrued expenses (amounts related to VIEs of $29,464 and $23,128 at December 31, 2021 and December 31, 2020, respectively) | 320,775 |  | 336,264
Dividends and distributions payable | 169,859 |  | 171,082
Accrued interest payable | 94,796 |  | 106,288
Other liabilities (amounts related to VIEs of $150,131 and $158,805 at December 31, 2021 and December 31, 2020, respectively) | 391,441 |  | 412,084
Total liabilities | 14,322,462 |  | 14,511,681
Redeemable deferred stock units— 83,073 and 72,966 units outstanding at redemption value at December 31, 2021 and December 31, 2020, respectively | 9,568 |  | 6,897
Equity / Capital: |  |  |
Excess stock, $0.01 par value, 150,000,000 shares authorized, none issued or outstanding | 0 |  | 0
Preferred stock, $0.01 par value, 50,000,000 shares authorized; |  |  |
5.25% Series B cumulative redeemable preferred stock / units, liquidation preference $2,500 per share / unit, 80,000 shares / units issued and outstanding at December 31, 2020 | 0 |  | 200,000
Common stock, $0.01 par value, 250,000,000 shares authorized, 156,623,749 and 155,797,725 issued and 156,544,849 and 155,718,825 outstanding at December 31, 2021 and December 31, 2020, respectively | 1,565 |  | 1,557
Additional paid-in capital | 6,497,730 |  | 6,356,791
Dividends in excess of earnings | (625,891) |  | (509,653)
Treasury common stock at cost, 78,900 shares at December 31, 2021 and December 31, 2020 | (2,722) |  | (2,722)
Accumulated other comprehensive loss | (36,662) |  | (49,890)
Total stockholders' equity attributable to Boston Properties, Inc. | 5,834,020 |  | 5,996,083
Noncontrolling interests: |  |  |
Common units of the Operating Partnership | 642,655 |  | 616,596
Property partnerships | 1,556,553 |  | 1,726,933
Total equity / capital | 8,033,228 |  | 8,339,612
Total liabilities and equity / capital | $ 22,365,258 |  | $ 22,858,190
Preferred stock, shares authorized | 50,000,000 |  | 50,000,000
Preferred stock, par value | $ 0.01 |  | $ 0.01
Series B Cumulative Redeemable Preferred Stock / Unit [Member] |  |  |
Noncontrolling interests: |  |  |
Preferred stock, shares authorized |  |  | 92,000
Preferred stock / units, shares / units issued (in shares / units) |  |  | 80,000
Series B Dividend Rate Percentage |  |  | 5.25%
Preferred stock, par value |  |  | $ 0.01
Series B Liquidation Preference Per Share/ Unit |  |  | $ 2,500
Preferred stock / units, shares / units outstanding (in shares / units) |  |  | 80,000
Series B Cumulative Redeemable Preferred Stock / Unit [Member] | Boston Properties Limited Partnership |  |  |
Noncontrolling interests: |  |  |
Preferred stock / units, shares / units issued (in shares / units) |  |  | 80,000
Series B Dividend Rate Percentage |  |  | 5.25%
Series B Liquidation Preference Per Share/ Unit |  |  | $ 2,500
Preferred stock / units, shares / units outstanding (in shares / units) |  |  | 80,000
Boston Properties Limited Partnership |  |  |
ASSETS |  |  |
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $6,702,830 and $6,592,019 at December 31, 2021 and December 31, 2020, respectively) | $ 23,379,243 |  | $ 22,592,301
Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at December 31, 2021 and December 31, 2020, respectively) | 237,507 |  | 237,393
Right of use assets - operating leases | 169,778 | [1] | 146,406
Less: accumulated depreciation (amounts related to VIEs of $(1,283,060) and $(1,158,548) at December 31, 2021 and December 31, 2020, respectively) | (5,772,018) |  | (5,428,576)
Real estate and development in process, net | 18,014,510 |  | 17,547,524
Cash and cash equivalents (amounts related to VIEs of $300,937 and $340,642 at December 31, 2021 and December 31, 2020, respectively) | 452,692 |  | 1,668,742
Cash held in escrows | 48,466 |  | 50,587
Investments in securities | 43,632 |  | 39,457
Tenant and other receivables, net (amounts related to VIEs of $6,824 and $10,911 at December 31, 2021 and December 31, 2020, respectively) | 70,186 |  | 77,411
Related party note receivable, net | 78,336 |  | 77,552
Notes receivable, net | 9,641 |  | 18,729
Accrued rental income, net (amounts related to VIEs of $357,395 and $336,594 at December 31, 2021 and December 31, 2020, respectively) | 1,226,745 |  | 1,122,502
Deferred charges, net (amounts related to VIEs of $174,637 and $183,306 at December 31, 2021 and December 31, 2020, respectively) | 618,798 |  | 640,085
Prepaid expenses and other assets (amounts related to VIEs of $29,668 and $13,137 at December 31, 2021 and December 31, 2020, respectively) | 57,811 |  | 33,840
Investments in unconsolidated joint ventures | 1,482,997 |  | 1,310,478
Total assets | 22,103,814 |  | 22,586,907
Liabilities: |  |  |
Secured Debt | 3,267,914 |  | 2,909,081
Unsecured senior notes, net | 9,483,695 |  | 9,639,287
Unsecured line of credit | 145,000 |  | 0
Unsecured term loan, net | 0 |  | 499,390
Lease liabilities - finance leases (amounts related to VIEs of $20,458 and $20,306 at December 31, 2021 and December 31, 2020, respectively) | 244,421 |  | 236,492
Lease liabilities - operating leases | 204,561 |  | 201,713
Accounts payable and accrued expenses (amounts related to VIEs of $29,464 and $23,128 at December 31, 2021 and December 31, 2020, respectively) | 320,775 |  | 336,264
Dividends and distributions payable | 169,859 |  | 171,082
Accrued interest payable | 94,796 |  | 106,288
Other liabilities (amounts related to VIEs of $150,131 and $158,805 at December 31, 2021 and December 31, 2020, respectively) | 391,441 |  | 412,084
Total liabilities | 14,322,462 |  | 14,511,681
Redeemable deferred stock units— 83,073 and 72,966 units outstanding at redemption value at December 31, 2021 and December 31, 2020, respectively | 9,568 |  | 6,897
Noncontrolling interest: |  |  |
Redeemable partnership units— 16,561,186 and 16,037,121 common units and 1,485,376 and 1,336,115 long term incentive units outstanding at redemption value at December 31, 2021 and December 31, 2020, respectively | 2,078,603 |  | 1,643,024
Preferred stock, $0.01 par value, 50,000,000 shares authorized; |  |  |
5.25% Series B cumulative redeemable preferred stock / units, liquidation preference $2,500 per share / unit, 80,000 shares / units issued and outstanding at December 31, 2020 | 0 |  | 193,623
Boston Properties Limited Partnership partners’ capital— 1,745,914 and 1,730,921 general partner units and 154,798,935 and 153,987,904 limited partner units outstanding at December 31, 2021 and December 31, 2020, respectively | 4,173,290 |  | 4,554,639
Accumulated other comprehensive loss | (36,662) |  | (49,890)
Total partners’ capital | 4,136,628 |  | 4,698,372
Noncontrolling interests in property partnerships | 1,556,553 |  | 1,726,933
Noncontrolling interests: |  |  |
Total equity / capital | 5,693,181 |  | 6,425,305
Total liabilities and equity / capital | $ 22,103,814 |  | $ 22,586,907
NonControlling Interest Redeemable Partnership Units Common Units Shares Outstanding | 16,561,186 |  | 16,037,121
NonControlling Interest Redeemable Partnership Units Common Units Long Term Incentive Units At Redemption Value Shares Outstanding | 1,485,376 |  | 1,336,115
[1] | See Note 4.

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