850 3rd Avenue

850 3rd Avenue has about 1.1 million square feet of floor area in total, including 391,000 square feet of office, 135,000 square feet of retail and 587,000 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 1920 as the year built, with a major alteration recorded in 2020. The building is 8 floors tall.

City records list 509-519 2nd Avenue, 20 30th Street, 110 30th Street, 109 31st Street and 840-854 3rd Avenue on the same tax lot (BBL 3006710001) as 850 3rd Avenue. A space listed on Leasemark at any of these addresses shows up on this page.

850 3rd Avenue is in ZIP code 11232, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 850 3rd Avenue, Brooklyn, NY 11232, in Sunset Park.

The lot is in the M3-1 zoning district. PLUTO lists a built floor area ratio (FAR) of 7.26 and a maximum commercial FAR of 2 for this lot.

The closest subway station to 850 3rd Avenue is 36 St (the D, N and R trains), about 0.3 miles away in a straight line, roughly 6 minutes on foot. Also nearby: 25 St (the R train), 7 min walk; Prospect Av (the R train), 15 min walk. Walking times are straight-line estimates; the street route is longer.

The NYC Department of Finance's 2026/27 assessment roll lists SALMAR PROPERTIES, LLC as the owner of record of 850 3rd Avenue (BBL 3006710001). 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.

850 3rd 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 37.4 kBtu per square foot, about the same as the national median of 37.9 for a similar property. Its greenhouse gas emissions were about 4,160 metric tons of CO2e (3.71 kg per square foot).

In the 12 months to October 2026, the Department of Buildings issued first permits for 13 jobs at 850 3rd Avenue. In the last two years, interior work was permitted on 5 floors (floors 1 to 4 and 6). The newest build-out, on floor 6, was first permitted in September 2026 (construction; filed cost estimate $75,000). These are the Department of Buildings' DOB NOW work permits for tax lot 3006710001. 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 exemptions covering the whole taxable value of 850 3rd Avenue, so there is no property tax on the roll to estimate. That is common for government, nonprofit and payment-in-lieu-of-taxes (PILOT) properties. The city's property tax records for BBL 3006710001 show what is actually billed.

For tax year 2026/27, the NYC Department of Finance puts the market value of 850 3rd Avenue at $82.8 million ($5.36 million of it land) and its assessed value at $37.2 million, the 45% of market value the city assesses for Class 4 property. The city's market value rose 12% from 2022/23 ($74 million) to 2026/27.

No space at 850 3rd 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.