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Real Estate (Tables) | 9 Months Ended
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Sep. 30, 2025
Real Estate Properties [Line Items] |
Schedule of Real Estate Properties | BXP Real estate consisted of the following at September 30, 2025 and December 31, 2024 (in thousands):
|  | September 30, 2025 |  | December 31, 2024
Land |  | $ | 5,309,234 |  |  | $ | 5,318,724 |
Right of use assets - finance leases |  | 372,747 |  |  | 372,922 |
Right of use assets - operating leases |  | 321,063 |  |  | 334,767 |
Land held for future development (1) |  | 562,909 |  |  | 714,050 |
Buildings and improvements |  | 17,312,118 |  |  | 17,149,702 |
Tenant improvements |  | 4,042,562 |  |  | 3,866,371 |
Furniture, fixtures and equipment |  | 60,353 |  |  | 57,136 |
Construction in progress |  | 1,322,608 |  |  | 764,640 |
Total |  | 29,303,594 |  |  | 28,578,312 |
Less: Accumulated depreciation |  | (8,008,908) |  |  | (7,528,057) |
|  | $ | 21,294,686 |  |  | $ | 21,050,255 |
_______________ (1)Includes pre-development costs.
Details of Impairment of Long-Lived Assets Held and Used by Asset | BXP BXP recognized impairment losses of approximately $68.9 million during the three and nine months ended September 30, 2025. The impairment losses consisted of the following (in thousands):
Property |  | Location |  | Property Type |  | Amount
Plaza at Almaden (1) |  | San Jose, CA |  | Land |  | $ | 25,515 |
1330 Connecticut Avenue |  | Washington, DC |  | Office |  | 20,358 |
Shady Grove – Parcel 3 |  | Rockville, MD |  | Land |  | 13,913 |
North First Business Park |  | San Jose, CA |  | Office |  | 9,115 |
|  |  |  |  |  | $ | 68,901 |
_______________ (1)See Note 14.
Boston Properties Limited Partnership |
Real Estate Properties [Line Items] |
Schedule of Real Estate Properties | BPLP Real estate consisted of the following at September 30, 2025 and December 31, 2024 (in thousands):
|  | September 30, 2025 |  | December 31, 2024
Land |  | $ | 5,215,723 |  |  | $ | 5,224,015 |
Right of use assets - finance leases |  | 372,747 |  |  | 372,922 |
Right of use assets - operating leases |  | 321,063 |  |  | 334,767 |
Land held for future development (1) |  | 562,909 |  |  | 714,050 |
Buildings and improvements |  | 17,044,157 |  |  | 16,878,146 |
Tenant improvements |  | 4,042,562 |  |  | 3,866,371 |
Furniture, fixtures and equipment |  | 60,353 |  |  | 57,136 |
Construction in progress |  | 1,322,608 |  |  | 764,640 |
Total |  | 28,942,122 |  |  | 28,212,047 |
Less: Accumulated depreciation |  | (7,875,405) |  |  | (7,397,882) |
|  | $ | 21,066,717 |  |  | $ | 20,814,165 |
_______________ (1)Includes pre-development costs.
Details of Impairment of Long-Lived Assets Held and Used by Asset | BPLP BPLP recognized impairment losses of approximately $66.0 million during the three and nine months ended September 30, 2025. The impairment losses consisted of the following (in thousands):
Property |  | Location |  | Property Type |  | Amount
Plaza at Almaden (1) |  | San Jose, CA |  | Land |  | $ | 25,515 |
1330 Connecticut Avenue |  | Washington, DC |  | Office |  | 17,460 |
Shady Grove – Parcel 3 |  | Rockville, MD |  | Land |  | 13,913 |
North First Business Park |  | San Jose, CA |  | Office |  | 9,100 |
|  |  |  |  |  | $ | 65,988 |
_______________ (1)See Note 14.

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