425 Madison Avenue

425 Madison Avenue has about 103,000 square feet of floor area in total, including 98,000 square feet of office and 5,000 square feet of retail, according to NYC PLUTO 26v2. These are the city's estimates for the whole building, not space that is available.

City records list 1927 as the year built. The building is 19 floors tall.

City records list 34-40 East 49th Street and 425-427 Madison Avenue on the same tax lot (BBL 1012840052) as 425 Madison Avenue. A space listed on Leasemark at any of these addresses shows up on this page.

425 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 425 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 15.81 and a maximum commercial FAR of 15 for this lot.

The closest subway station to 425 Madison Avenue is 51 St (the 6, E and F trains, connected to Lexington Av/53 St), about 0.2 miles away in a straight line, roughly 4 minutes on foot. The MTA lists it as an accessible station. Also nearby: 5 Av/53 St (the E and F trains), 5 min walk; 47-50 Sts-Rockefeller Ctr (the B, D, F and M 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 425 MADISON ASSOCIATE as the owner of record of 425 Madison Avenue (BBL 1012840052). Deeds and mortgages for the lot are public in ACRIS, the city's property records system.

425 Madison Avenue's 2024 Local Law 84 benchmarking filing got no ENERGY STAR score (no single use that ENERGY STAR scores covers more than half of the floor area), 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 75.1 kBtu per square foot, 63% above the national median of 46.1 for a similar property. Its greenhouse gas emissions were about 681 metric tons of CO2e (6.64 kg per square foot).

In the 12 months to September 2026, the Department of Buildings issued first permits for 2 jobs at 425 Madison Avenue. In the last two years, interior work was permitted on 2 floors (floors 1 and 2 and the cellar). The newest build-out, on floor 1, was first permitted in July 2026 (construction, mechanical, structural; filed cost estimate $83,000). These are the Department of Buildings' DOB NOW work permits for tax lot 1012840052. 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 $8.1 million for 425 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 $879,176 a year, roughly $8.58 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1012840052 show the actual bill.

For tax year 2026/27, the NYC Department of Finance puts the market value of 425 Madison Avenue at $18 million ($6.92 million of it land) and its assessed value at $8.1 million, the 45% of market value the city assesses for Class 4 property. The city's market value fell 34% from 2022/23 ($27.1 million) to 2026/27.

Owners registered 4 storefronts at 425 Madison Avenue for December 31, 2024, the newest annual filing the city has published, and none stood vacant that day. These are the owners' filings with the Department of Finance under Local Law 157, so a storefront may have come free since. Owners and brokers can list a storefront on Leasemark for free.

No space at 425 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.