777 Third Avenue

777 Third Avenue has about 563,000 square feet of floor area in total, including 520,000 square feet of office, 5,000 square feet of retail and 12,000 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 1964 as the year built, with a major alteration recorded in 2010. The building is 39 floors tall.

City records list 201-207 East 48th Street, 204-208 East 49th Street and 777-793 Third Avenue on the same tax lot (BBL 1013220001) as 777 Third Avenue. A space listed on Leasemark at any of these addresses shows up on this page.

777 Third 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 777 Third Avenue, New York, NY 10017, in Midtown.

The lot is in the C6-6 zoning district. PLUTO lists a built floor area ratio (FAR) of 20.94 and a maximum commercial FAR of 15 for this lot.

The closest subway station to 777 Third Avenue is 51 St (the 6, E and F trains, connected to Lexington Av/53 St), about 900 feet away in a straight line, roughly 3 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), 7 min walk; 5 Av/53 St (the E and F trains), 9 min walk. Walking times are straight-line estimates; the street route is longer.

The NYC Department of Finance's 2026/27 assessment roll lists 7 3 AVE LEASEHOLD LLC as the owner of record of 777 Third Avenue (BBL 1013220001). 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 777 Third Avenue. One public company reports the address as its principal executive office: ACACIA RESEARCH CORP (ACTG). 7 investment managers and funds file 13F holdings reports from the address, including Lisanti Capital Growth, LLC; Spruce Street Capital LP; and Starboard Principal Co GP 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.

777 Third Avenue reported an ENERGY STAR score of 76 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 76 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 54.5 kBtu per square foot, 32% below the national median of 80.7 for a similar property. Its greenhouse gas emissions were about 2,850 metric tons of CO2e (5.13 kg per square foot).

In the 12 months to October 2026, the Department of Buildings issued first permits for 5 jobs at 777 Third Avenue. In the last two years, interior work was permitted on 16 floors (floors 1, 2, 6 to 12, 20, 21, 28, 30, 32, 35 and 37). The newest build-out, on floor 12, was first permitted in October 2026 (construction, mechanical, plumbing; filed cost estimate $1.4 million). These are the Department of Buildings' DOB NOW work permits for tax lot 1013220001. 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 $75.1 million for 777 Third Avenue. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $8.15 million a year, roughly $14.46 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1013220001 show the actual bill.

For tax year 2026/27, the NYC Department of Finance puts the market value of 777 Third Avenue at $166.9 million ($34.2 million of it land) and its assessed value at $75.1 million, the 45% of market value the city assesses for Class 4 property. The city's market value fell 2% from 2022/23 ($171.2 million) to 2026/27.

Owners registered 3 storefronts at 777 Third Avenue 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 2020. 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 777 Third 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.