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Organization and Basis of Presentation (Tables) | 12 Months Ended
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Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Interests in Investment Properties | On December 31, 2023, we owned the following interests in properties in the New York metropolitan area, primarily in midtown Manhattan. Our investments located outside of Manhattan are referred to as the Suburban properties:
|  |  |  | Consolidated |  | Unconsolidated |  | Total |  |
Location |  | Property Type |  | Number of Buildings |  | Approximate Square Feet (unaudited) |  | Number of Buildings |  | Approximate Square Feet (unaudited) |  | Number of Buildings |  | Approximate Square Feet (unaudited) |  | Weighted Average Leased Occupancy(1) (unaudited)
Commercial: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Manhattan |  | Office |  | 13 |  | (2) | 8,399,141 |  |  | 12 |  |  | 15,412,174 |  |  | 25 |  | (2) | 23,811,315 |  | (2) | 89.4 | %
|  | Retail |  | 3 |  | (2) | 40,536 |  |  | 7 |  |  | 281,796 |  |  | 10 |  | (2) | 322,332 |  | (2) | 91.2 | %
|  | Development/Redevelopment |  | 3 |  | (3) | 1,443,771 |  |  | 3 |  |  | 2,893,357 |  |  | 6 |  | (2) | 4,337,128 |  | (2) | N/A
|  |  |  | 19 |  |  | 9,883,448 |  |  | 22 |  |  | 18,587,327 |  |  | 41 |  |  | 28,470,775 |  |  | 89.5 | %
Suburban |  | Office |  | 7 |  |  | 862,800 |  |  | — |  |  | — |  |  | 7 |  |  | 862,800 |  |  | 77.1 | %
Total commercial properties |  | 26 |  |  | 10,746,248 |  |  | 22 |  |  | 18,587,327 |  |  | 48 |  |  | 29,333,575 |  |  | 89.0 | %
Residential: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Manhattan |  | Residential |  | 1 |  | (3) | 140,382 |  |  | 1 |  |  | 221,884 |  |  | 2 |  |  | 362,266 |  |  | 99.0 | %
Total portfolio |  | 27 |  |  | 10,886,630 |  |  | 23 |  |  | 18,809,211 |  |  | 50 |  |  | 29,695,841 |  |  | 89.2 | %
(1)The weighted average leased occupancy for commercial properties represents the total leased square footage divided by the total square footage at acquisition. The weighted average leased for residential properties represents the total leased units divided by the total available units. Properties under construction are not included in the calculation of weighted average leased occupancy. (2)Includes assets within the Company's alternative strategy portfolio. Within that portfolio, office includes one building totaling 2,048,725 square feet, retail includes eight buildings totaling 286,738 square feet, and development/redevelopment includes two buildings totaling 1,496,931 square feet. (3)As of December 31, 2023, we owned a building at 7 Dey Street / 185 Broadway that was comprised of approximately 140,382 square feet (unaudited) of residential space and approximately 50,206 square feet (unaudited) of office and retail space that is under development. For the purpose of this report, we have included this building in the number of residential properties we own. However, we have included only the residential square footage in the residential approximate square footage, and have listed the balance of the square footage as development square footage.

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