Commercial condominium · Midtown, Manhattan
787 First Avenue
New York, NY 10017
787 First Avenue is a 39-floor commercial condominium in Midtown, Manhattan, built in 1977, with about 373,000 square feet of office space according to city records.
Also at 335-343 East 44th Street, 787-793 First Avenue, 1 United Nations Plaza and 785-793 United Nations Plaza.
- Office space
- 373K SF
- Floors
- 39
- Year built
- 1977
- Zoning
- C5-2
The 105th largest of the 351 office buildings we track in Midtown. Compare it with 6 neighbors
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Compared with its neighbors
How 787 First Avenue compares
Next to the 6 nearest large office buildings, all within a 1 minute walk, 787 First Avenue is the largest by office floor area. It went up in 1977; the median neighbor dates from 1974.
| Building | Office space | Floors | Built | Tax / SF |
|---|---|---|---|---|
| 787 First Avenue | 373K SF | 39 | 1977 | $3.68 |
| 799 First Avenue | 325K SF | 26 | 2006 | Exempt |
| 777 First Avenue | 67K SF | 12 | 1963 | Exempt |
| 323 East 44th Street | 365K SF | 39 | 1984 | $2.68 |
| 338 East 44th Street | 214K SF | 15 | 1987 | Exempt |
| 809 First Avenue | 103K SF | 11 | 1964 | Exempt |
| 304 East 45th Street | 232K SF | 17 | 1929 | $0.32 |
Sources: NYC Department of City Planning, PLUTO 26v2 for size, floors and year built; NYC Department of Finance 2026/27 roll for tax (taxable value times the class rate, before abatements, over the whole floor area). Large means at least 35,000 SF of the building's main use. Walking times are straight-line estimates.
NYC tax lot records
Building facts
- Other addresses
- 335-343 East 44th Street; 787-793 First Avenue; 1 United Nations Plaza; 785-793 United Nations Plaza
- ZIP code
- 10017
- Building type
- Commercial condominium (city class RC)
- Total floor area
- 586,305 SF
- Commercial floor area
- 378,202 SF
- Office
- 372,861 SF
- Retail
- 5,341 SF
- Height
- 39 floors
- Average floor
- About 15,000 SF (floor area divided by floors)
- Year built
- 1977
- Lot area
- 17,556 SF
- Zoning district
- C5-2
- Built FAR
- 33.4
- Max commercial FAR
- 10
- Landmark status
- Interior landmark
- Tax lot (BBL)
- 1013377502
Nearest subway
- Grand Central-42 St
- 51 St
- 5 Av
Source: NYC Department of City Planning, PLUTO 26v2, pulled 2026-10-16; addresses from the Property Address Directory (PAD) 26b; subway stations from the MTA Subway Stations dataset, pulled 2026-10-16. Floor areas are the city's estimates for the whole building, not available space. Walking times are straight-line estimates. How we build these pages. Something wrong on this page? Tell us.
NYC storefront registry (Local Law 157)
Storefronts and vacancy
Owners registered one storefront at 787 First Avenue for December 31, 2025, the newest annual filing the city has published, and it stood vacant that day. At least one storefront here has been reported vacant at the end of every year since 2023.
- Storefronts registered for December 31, 2025
- 1
- Vacant that day
- 1
- Share vacant across Midtown
- 14.3%
- Share vacant along First Avenue
- 10.6%
- Share vacant citywide
- 9.2%
- Condominium tax lots that filed
- 1
Vacant on December 31, by year
Own or lease out a storefront at 787 First Avenue? Listing it is free, and it is matched against every active requirement for retail space in Midtown the day it goes up.
Source: NYC Department of Finance, Storefronts Reported Vacant or Not (Local Law 157), annual filings for 2019 to 2025, pulled 2026-10-16. Owners of buildings with ground- or second-floor storefronts register each one every year with its status on December 31; counts are by tax lot, summed over the condominium's unit lot that filed, as the owners filed them. The 2025 filing was due June 1, 2026, so a storefront vacant then may have been leased since. A vacant storefront is not always on the market, and none here is listed on Leasemark unless it shows above.
NYC Department of Finance records
Owner, property tax and assessed value
787 First Avenue is a condominium of 2 tax lots. UNITED NATIONS DEVELOPMENT CP, one of 2 owners of record on the roll, owns the units that make up 60% of its market value. For tax year 2026/27 the city values 787 First Avenue at $148.2 million and assesses it at $66.7 million. After phase-ins and exemptions its taxable value is $19.9 million; at the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists) that comes to about $2.16 million a year before abatements, roughly $3.68 per square foot of floor area. Commercial leases here often pass a tenant's share of tax increases over a base year through as additional rent.
- Largest unit owner
- UNITED NATIONS DEVELOPMENT CP (60% of market value)
- Tax class
- Class 4 (commercial and industrial)
- City market value
- $148,235,000
- Land market value
- $36,000,000
- Assessed value
- $66,705,750
- Taxable value (phased in)
- $60,449,850
- Exemptions
- $40,537,350
- Estimated yearly tax
- About $2.16 million
- Tax per SF of floor area
- About $3.68
- Condominium tax lots
- 2
- Owners of record
- 2
City market value by tax year
Manage or lease this building? Claim this page. Requests are reviewed by hand.
How to find who owns any NYC buildingSource: NYC Department of Finance, Property Valuation and Assessment Data (2026/27 roll, summed over 2 condominium tax lots; owner names as the roll records them, which cuts some long names short), pulled 2026-10-16; tax rate from the Department of Finance tax rates page, checked 2026-09-28. The estimate is the taxable value times the class rate. It leaves out abatements, payment-in-lieu-of-taxes agreements and charges, so the actual bill can differ.
Own or manage 787 First Avenue? List a space here free and we match it against every active requirement. Renting it out yourself? Read the landlord's checklist.
NYC energy benchmarking (Local Law 84)
Energy use and emissions
787 First Avenue's 2024 Local Law 84 benchmarking filing got no ENERGY STAR score (the filing does not cover 12 full months of meter data), and Local Law 33 letter grades come from that score, so the filing does not yield an A to D grade.
- ENERGY STAR score (2024)
- None given
- Property type (Portfolio Manager)
- Office
- Floor area in the filing
- 587,000 SF
ENERGY STAR score by year
Source: NYC Department of Buildings and Mayor's Office of Climate and Environmental Justice, NYC Building Energy and Water Data Disclosure for Local Law 84 (2024 filing), pulled 2026-10-16; grade cutoffs from the Department of Buildings energy grades page. Figures are as the owner filed them in ENERGY STAR Portfolio Manager.
NYC Department of Buildings permits
Work permits and build-outs
In the 12 months to October 2026, the Department of Buildings issued first permits for 2 jobs at 787 First Avenue. In the last two years, interior work was permitted on one floor (floor 26). The newest build-out, on floor 26, was first permitted in February 2026 (structural; filed cost estimate $252,000). A sidewalk shed permit here is active until December 2, 2026.
- New jobs, last 12 months
- 2
- Initial permits, last 12 months
- 2
- Newest job first permitted
- February 2026
- Interior build-outs, last 24 months
- 1
- Floors with interior work, last 24 months
- 26
- Facade and sidewalk jobs, last 24 months
- 2
- Sidewalk shed permit
- Active until Dec 2, 2026
Recent build-outs
New jobs by year
Build-outs across MidtownWhere NYC offices are being built out
Source: NYC Department of Buildings, DOB NOW: Build Approved Permits, pulled 2026-10-24 (permits issued through 2026-10-22). A job counts once, when its first permit is issued; renewals are not new work. A build-out groups jobs on the same floors first permitted within 120 days of each other. Costs are the estimates filed with the jobs. Jobs filed before DOB NOW (in the older BIS system) are not counted. A permit is approval to do the work; it does not say who the work is for or whether it is finished.
Landmarks Preservation Commission records
Architecture and history
The Landmarks Preservation Commission designated United Nations Hotel, First Floor Interiors, on this tax lot, an interior landmark on January 17, 2017.
- Landmark on this lot
- United Nations Hotel, First Floor Interiors: interior landmark, designated January 17, 2017 (LP-02588)
Source: NYC Landmarks Preservation Commission, Designated and Calendared Buildings and Sites on NYC Open Data, pulled 2026-10-16. A designation can cover part of a lot, such as a facade or a lobby interior.
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Next door, in the Upper East Side
783 Madison 4th Floor
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Questions about 787 First Avenue
How big is 787 First Avenue?
787 First Avenue has about 586,000 square feet of floor area in total, including 373,000 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.
When was 787 First Avenue built?
City records list 1977 as the year built. The building is 39 floors tall.
Is 787 First Avenue a New York City landmark?
The tax lot at 787 First Avenue includes United Nations Hotel, First Floor Interiors, an interior landmark designated January 17, 2017 (LP-02588). Changes to a designated landmark, including many storefront, window and signage changes, need a permit from the Landmarks Preservation Commission.
What other addresses does 787 First Avenue have?
City records list 335-343 East 44th Street, 787-793 First Avenue, 1 United Nations Plaza and 785-793 United Nations Plaza on the same tax lot (BBL 1013377502) as 787 First Avenue. A space listed on Leasemark at any of these addresses shows up on this page.
What is the ZIP code of 787 First Avenue?
787 First 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 787 First Avenue, New York, NY 10017, in Midtown.
What is the zoning at 787 First Avenue?
The lot is in the C5-2 zoning district. PLUTO lists a built floor area ratio (FAR) of 33.4 and a maximum commercial FAR of 10 for this lot.
What subway station is closest to 787 First Avenue?
The closest subway station to 787 First Avenue is Grand Central-42 St (the 4, 5, 6, 7 and S trains), about 0.4 miles away in a straight line, roughly 7 minutes on foot. The MTA lists it as an accessible station. Also nearby: 51 St (the 6, E and F trains, connected to Lexington Av/53 St), 10 min walk; 5 Av (the 7, B, D, F and M trains, connected to 42 St-Bryant Pk), 14 min walk. Walking times are straight-line estimates; the street route is longer.
Who owns 787 First Avenue?
787 First Avenue is a condominium of 2 tax lots. UNITED NATIONS DEVELOPMENT CP, one of 2 owners of record on the roll, owns the units that make up 60% of its market value. That is from the NYC Department of Finance's 2026/27 assessment roll (BBL 1013377502). Deeds and mortgages for each unit are public in ACRIS, the city's property records system.
Does 787 First Avenue have an energy grade?
787 First Avenue's 2024 Local Law 84 benchmarking filing got no ENERGY STAR score (the filing does not cover 12 full months of meter data), and Local Law 33 letter grades come from that score, so the filing does not yield an A to D grade.
Is there construction at 787 First Avenue?
In the 12 months to October 2026, the Department of Buildings issued first permits for 2 jobs at 787 First Avenue. In the last two years, interior work was permitted on one floor (floor 26). The newest build-out, on floor 26, was first permitted in February 2026 (structural; filed cost estimate $252,000). A sidewalk shed permit here is active until December 2, 2026. These are the Department of Buildings' DOB NOW work permits for tax lot 1013377502. A permit is approval to do the work; it does not say who the work is for or whether it is finished.
What are the property taxes at 787 First Avenue?
The Department of Finance's 2026/27 assessment roll lists a taxable value of $19.9 million for 787 First Avenue (the sum of its 2 condominium tax lots). At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $2.16 million a year, roughly $3.68 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1013377502 show the actual bill.
What is the assessed value of 787 First Avenue?
For tax year 2026/27, the NYC Department of Finance puts the market value of 787 First Avenue at $148.2 million ($36 million of it land) and its assessed value at $66.7 million, the 45% of market value the city assesses for Class 4 property. The city's market value rose 30% from 2022/23 ($113.9 million) to 2026/27.
Are there vacant storefronts at 787 First Avenue?
Owners registered one storefront at 787 First Avenue for December 31, 2025, the newest annual filing the city has published, and it stood vacant that day. At least one storefront here has been reported vacant at the end of every year since 2023. 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.
Is there office space for lease at 787 First Avenue?
No space at 787 First 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.
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Midtown
Transit hubs in Midtown
- B D F M at 42 St-Bryant Pk
- 7 at 5 Av
- N Q R W at Times Sq