346 Madison Avenue

346 Madison Avenue has about 140,000 square feet of floor area in total, including 76,000 square feet of office, 49,000 square feet of retail and 15,000 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 1915 as the year built, with a major alteration recorded in 1989. The building is 11 floors tall.

City records list 17-31 East 44th Street on the same tax lot (BBL 1012790017) as 346 Madison Avenue. A space listed on Leasemark at any of these addresses shows up on this page.

346 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 346 Madison Avenue, New York, NY 10017, in Grand Central.

The lot is in the C5-3 zoning district. PLUTO lists a built floor area ratio (FAR) of 10.69 and a maximum commercial FAR of 15 for this lot.

The closest subway station to 346 Madison Avenue is Grand Central-42 St (the 4, 5, 6, 7 and S trains), about 650 feet away in a straight line, roughly 2 minutes on foot. The MTA lists it as an accessible station. Also nearby: 5 Av (the 7, B, D, F and M trains, connected to 42 St-Bryant Pk), 4 min walk; 47-50 Sts-Rockefeller Ctr (the B, D, F and M trains), 7 min walk. Walking times are straight-line estimates; the street route is longer.

The NYC Department of Finance's 2026/27 assessment roll lists 346 MADISON AVENUE OWNER LLC as the owner of record of 346 Madison Avenue (BBL 1012790017). 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.

346 Madison Avenue last sold in October 2025 for $85 million, according to the deed recorded with the city. 346 MADISON AVENUE, LLC sold it to 346 MADISON AVENUE OWNER LLC. That comes to about $606 per square foot of floor area. The deed is ACRIS document 2025101600694002 (BBL 1012790017) 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.

346 Madison Avenue's 2022 Local Law 84 benchmarking filing got no ENERGY STAR score, and Local Law 33 letter grades come from that score, so the filing does not yield an A to D grade. Its site energy use came to 35.5 kBtu per square foot, 32% below the national median of 52.5 for a similar property. Its greenhouse gas emissions were about 386 metric tons of CO2e (2.8 kg per square foot).

In the 12 months to September 2026, the Department of Buildings issued first permits for 7 jobs at 346 Madison Avenue. In the last two years, interior work was permitted on 11 floors (floors 1 to 11, the cellar and the ground floor). The newest build-out, on floors 1 to 10, was first permitted in September 2026 (construction; filed cost estimate $25,000). A sidewalk shed permit here is active until December 8, 2026. These are the Department of Buildings' DOB NOW work permits for tax lot 1012790017. 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 $30.5 million for 346 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 $3.31 million a year, roughly $23.60 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1012790017 show the actual bill.

For tax year 2026/27, the NYC Department of Finance puts the market value of 346 Madison Avenue at $70.1 million ($14 million of it land) and its assessed value at $31.5 million, the 45% of market value the city assesses for Class 4 property. The city's market value rose 6% from 2022/23 ($66.3 million) to 2026/27.

Owners registered one storefront at 346 Madison Avenue for December 31, 2024, the newest annual filing the city has published, and it stood vacant that day. These are the owners' filings with the Department of Finance under Local Law 157, so a storefront vacant on December 31, 2024 may have been leased since. Owners and brokers can list a storefront on Leasemark for free.

No space at 346 Madison Avenue is listed on Leasemark right now. Owners and brokers can list space here for free, and tenants can post a requirement to be matched when space opens up.