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Real Estate (Tables)
 12 Months Ended
Dec. 31, 2024
Real Estate Properties [Line Items]  
Schedule of Real Estate Properties
BXP
Real estate consisted of the following at December 31, 2024 and December 31, 2023 (in thousands):
December 31, 2024December 31, 2023
Land$5,318,724 $5,251,224 
Right of use assets - finance leases (1)372,922 401,680 
Right of use assets - operating leases (1)334,767 324,298 
Land held for future development (2)714,050 697,061 
Buildings and improvements17,149,702 16,607,756 
Tenant improvements3,866,371 3,592,172 
Furniture, fixtures and equipment57,136 53,716 
Construction in progress764,640 547,280 
Total28,578,312 27,475,187 
Less: Accumulated depreciation(7,528,057)(6,881,728)
$21,050,255 $20,593,459 
_______________
(1)See Note 4.
(2)Includes pre-development costs.
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense The following table summarizes the scheduled amortization of the Company’s acquired “above-” and “below-market” lease intangibles for each of the five succeeding years (in thousands).
Acquired Above-Market Lease IntangiblesAcquired Below-Market Lease Intangibles
2025$2,328 $9,982 
20261,236 8,862 
2027928 5,648 
2028781 2,419 
2029729 914 
901 New York Avenue  
Real Estate Properties [Line Items]  
Asset Acquisition The following table summarizes the allocation of the fair value of the net assets the Company received at the date of acquisition for 901 New York Avenue (in thousands):
Land and site improvements$65,808 
Building and improvements56,882 
Tenant improvements16,088 
In-place lease intangibles72,621 
Above-market lease intangibles2,757 
Below-market lease intangibles(2,515)
Mortgage note payable adjustment8,374 
Net assets acquired$220,015 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
The following table summarizes the estimated annual amortization of the acquired in-place lease intangibles, and the acquired above- and below-market lease intangibles for 901 New York Avenue as of the acquisition date for each of the five succeeding fiscal years (in thousands):
Acquired In-Place Lease Intangibles Acquired Above-Market Lease Intangibles Acquired Below-Market Lease Intangibles
2025$9,030 $454 $257 
20266,494 238 257 
20276,265 201 257 
20286,069 186 257 
20296,076 186 251 
Schedule of Acquired Finite-Lived Intangible Assets by Major Class
The following table summarizes the weighted-average useful life of the acquired in-place lease intangibles and the acquired above- and below-market lease intangibles for 901 New York Avenue as of the acquisition date (in years):
Acquired In-Place Lease Intangibles Acquired Above-Market Lease Intangibles Acquired Below-Market Lease Intangibles
Weighted-average useful life6.74.09.8
725 12th Street  
Real Estate Properties [Line Items]  
Asset Acquisition
The following table summarizes the allocation of the purchase price, including transactions costs, of 725 12th Street (in thousands):
Land and site improvements$26,997 
Building and improvements8,369 
Net assets acquired$35,366 
Boston Properties Limited Partnership  
Real Estate Properties [Line Items]  
Schedule of Real Estate Properties
BPLP
Real estate consisted of the following at December 31, 2024 and December 31, 2023 (in thousands):
December 31, 2024December 31, 2023
Land$5,224,015 $5,156,515 
Right of use assets - finance leases (1)372,922 401,680 
Right of use assets - operating leases (1)334,767 324,298 
Land held for future development (2)714,050 697,061 
Buildings and improvements16,878,146 16,336,200 
Tenant improvements3,866,371 3,592,172 
Furniture, fixtures and equipment57,136 53,716 
Construction in progress764,640 547,280 
Total28,212,047 27,108,922 
Less: Accumulated depreciation(7,397,882)(6,758,361)
$20,814,165 $20,350,561 
_______________
(1)See Note 4.
(2)Includes pre-development costs.