400 Madison Avenue

400 Madison Avenue has about 146,000 square feet of floor area in total, including 138,000 square feet of office and 8,000 square feet of retail, according to NYC PLUTO 26v2. These are the city's estimates for the whole building, not space that is available.

The Landmarks Preservation Commission's building records date 400 Madison Avenue to 1928-1929, designed by H. Craig Severance, Inc. (architect), G. A. Fuller Co. (builder). The building is 20 floors tall.

H. Craig Severance, Inc. (architect), G. A. Fuller Co. (builder), according to the Landmarks Preservation Commission's building records, which list the style as neo-Gothic and its original use as an office building.

Yes. The Landmarks Preservation Commission designated 400 Madison Avenue an individual landmark on November 22, 2016 (LP-02576). Changes to a designated landmark, including many storefront, window and signage changes, need a permit from the Commission.

City records list 23-25 East 47th Street, 24-26 East 48th Street and 394-408 Madison Avenue on the same tax lot (BBL 1012830017) as 400 Madison Avenue. A space listed on Leasemark at any of these addresses shows up on this page.

400 Madison Avenue is in ZIP code 10017, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 400 Madison Avenue, New York, NY 10017, in Midtown.

The lot is in the C5-3 zoning district. PLUTO lists a built floor area ratio (FAR) of 16.27 and a maximum commercial FAR of 15 for this lot.

The closest subway station to 400 Madison Avenue is 51 St (the 6, E and F trains, connected to Lexington Av/53 St), about 0.3 miles away in a straight line, roughly 5 minutes on foot. The MTA lists it as an accessible station. Also nearby: Grand Central-42 St (the 4, 5, 6, 7 and S trains), 6 min walk; 5 Av/53 St (the E and F trains), 6 min walk. Walking times are straight-line estimates; the street route is longer.

The NYC Department of Finance's 2026/27 assessment roll lists DS400OWNER LLC as the owner of record of 400 Madison Avenue (BBL 1012830017). 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.

Leasemark does not have the building's tenant roster, but SEC filings name companies with offices at 400 Madison Avenue. 4 investment managers and funds file 13F holdings reports from the address, including Avestar Capital, LLC; Candelo Capital Management LP; and Tekne Capital Management, LLC. Private companies do not file with the SEC, so the full list of tenants is longer, and a company can also report a building it owns.

400 Madison Avenue last sold in October 2018 for $194.5 million, according to the deed recorded with the city. 400 MADISON HOLDINGS LLC sold it to DS400OWNER LLC. That comes to about $1,331 per square foot of floor area. The deed is ACRIS document 2018102601032001 (BBL 1012830017) 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.

400 Madison Avenue reported an ENERGY STAR score of 84 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 84 earns a B. 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 70.8 kBtu per square foot, 43% below the national median of 125 for a similar property. Its greenhouse gas emissions were about 1,054 metric tons of CO2e (7.21 kg per square foot).

In the 12 months to October 2026, the Department of Buildings issued first permits for 14 jobs at 400 Madison Avenue. In the last two years, interior work was permitted on one floor (floor 1 and the cellar). The newest build-out, on floor 1 and the cellar, was first permitted in June 2026 (plumbing; filed cost estimate $35,000). A sidewalk shed permit here is active until November 9, 2026. These are the Department of Buildings' DOB NOW work permits for tax lot 1012830017. 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 $28.7 million for 400 Madison Avenue. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $3.11 million a year, roughly $21.28 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1012830017 show the actual bill.

For tax year 2026/27, the NYC Department of Finance puts the market value of 400 Madison Avenue at $64.5 million ($17.3 million of it land) and its assessed value at $29 million, the 45% of market value the city assesses for Class 4 property. The city's market value fell 5% from 2022/23 ($68.1 million) to 2026/27.

No space at 400 Madison Avenue 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.