23 West 43rd Street

23 West 43rd Street has about 288,000 square feet of floor area in total, including 278,000 square feet of office, 10,000 square feet of retail and 0 square feet of industrial and storage space, according to NYC PLUTO 26v2. These are the city's estimates for the whole building, not space that is available.

City records list 1920 as the year built. The building is 20 floors tall.

City records list 23-31 West 43rd Street and 26-28 West 44th Street on the same tax lot (BBL 1012590019) as 23 West 43rd Street. A space listed on Leasemark at any of these addresses shows up on this page.

23 West 43rd Street is in ZIP code 10036, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 23 West 43rd Street, New York, NY 10036, in Midtown.

The lot is in the C6-4.5 zoning district. PLUTO lists a built floor area ratio (FAR) of 14.96 and a maximum commercial FAR of 12 for this lot.

The closest subway station to 23 West 43rd Street is 5 Av (the 7, B, D, F and M trains, connected to 42 St-Bryant Pk), about 450 feet away in a straight line, roughly 2 minutes on foot. Also nearby: Grand Central-42 St (the 4, 5, 6, 7 and S trains), 4 min walk; Times Sq-42 St (the 1, 2, 3, 7, N, Q, R, W, S, A, C and E trains, connected to 42 St-Port Authority Bus Terminal), 5 min walk. Walking times are straight-line estimates; the street route is longer.

The NYC Department of Finance's 2026/27 assessment roll lists APF 28 W 44 OWNER L.P. as the owner of record of 23 West 43rd Street (BBL 1012590019). Big buildings are usually held through a company set up for that one property, so the name on the roll can differ from the landlord's brand or the managing agent. Deeds and mortgages for the lot are public in ACRIS, the city's property records system.

23 West 43rd Street last sold in May 2011 for $161 million, according to the deed recorded with the city. NEW GREEN 28W44 LLC sold it to APF 28 W 44 OWNER L.P.. That comes to about $559 per square foot of floor area. The deed is ACRIS document 2011050900245001 (BBL 1012590019) in the city's property records. A sale of the company that owns a building is not recorded as a deed, so it would not show there.

23 West 43rd Street reported an ENERGY STAR score of 91 for calendar year 2024 in its Local Law 84 benchmarking filing. Under Local Law 33, as amended by Local Law 95 of 2019, a score of 85 or higher earns an A, 70 to 84 a B, 55 to 69 a C and under 55 a D, so 91 earns an A. The Department of Buildings assigns the grade a building posts, so the posted label can differ if a filing was corrected. Its site energy use came to 73 kBtu per square foot, less than half the national median of 160.3 for a similar property. Its greenhouse gas emissions were about 1,952 metric tons of CO2e (6.23 kg per square foot).

At its 2024 energy use, 23 West 43rd Street comes to about 1,399 metric tons of CO2e a year under Local Law 97's coefficients, against a limit of 2,498 tons for 2024 to 2029 (56% of the limit), so it would owe no penalty. From 2030 the limit drops to 812 tons and the same energy use counts as about 990 tons, about 178 tons over, or an estimated $48,000 a year unless the building cuts its emissions. This is an estimate from the owner's 2024 benchmarking filing using the coefficients and per-use limits in the law and the Department of Buildings rule, at $268 per ton over. It is not the building's Local Law 97 report, which can count credits and deductions this estimate cannot.

In the 12 months to October 2026, the Department of Buildings issued first permits for 1 job at 23 West 43rd Street. In the last two years, interior work was permitted on one floor (floor 1). The newest build-out, on floor 1, was first permitted in July 2026 (construction; filed cost estimate $87,000). These are the Department of Buildings' DOB NOW work permits for tax lot 1012590019. A permit is approval to do the work; it does not say who the work is for or whether it is finished.

The Department of Finance's 2026/27 assessment roll lists a taxable value of $50.8 million for 23 West 43rd Street. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $5.51 million a year, roughly $19.13 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1012590019 show the actual bill.

For tax year 2026/27, the NYC Department of Finance puts the market value of 23 West 43rd Street at $112.8 million ($24.6 million of it land) and its assessed value at $50.8 million, the 45% of market value the city assesses for Class 4 property. The city's market value fell 4% from 2022/23 ($117.3 million) to 2026/27.

Owners registered 4 storefronts at 23 West 43rd Street for December 31, 2025, the newest annual filing the city has published, and 1 of them stood vacant that day. At least one storefront here has been reported vacant at the end of every year since 2022. These are the owners' filings with the Department of Finance under Local Law 157, so a storefront vacant on December 31, 2025 may have been leased since. Owners and brokers can list a storefront on Leasemark for free.

No space at 23 West 43rd Street is listed on Leasemark right now. Nearby on Leasemark: office space for lease at 783 Madison 4th Floor in the Upper East Side (994 SF, $66.40/SF/yr). Owners and brokers can list space here for free, and tenants can post a requirement to be matched when space opens up.