Commercial condominium · Midtown, Manhattan
1251 Avenue of the Americas
New York, NY 10020
1251 Avenue of the Americas is a 54-floor commercial condominium in Midtown, Manhattan, built in 1970, with about 1.8 million square feet of office space according to city records.
Formerly the Exxon Building. Also at 101-139 West 49th Street and 100-134 West 50th Street.
- Office space
- 1.8M SF
- Floors
- 54
- Year built
- 1970
- Zoning
- C6-5.5
The 10th largest of the 351 office buildings we track in Midtown. Compare it with 6 neighbors
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Compared with its neighbors
How 1251 Avenue of the Americas compares
Next to the 6 nearest large office buildings, all within a 2 minute walk, 1251 Avenue of the Americas ranks 3rd of 7 by office floor area. It went up in 1970; the median neighbor dates from 1967. Its estimated property tax, about $30.07 a square foot of floor area before abatements, is above the neighbors' median of $23.46.
| Building | Office space | Floors | Built | Tax / SF | Last sale |
|---|---|---|---|---|---|
| 1251 Avenue of the Americas | 1.8M SF | 54 | 1970 | $30.07 | n/a |
| 1221 Avenue of the Americas | 2.4M SF | 51 | 1971 | $22.70 | n/a |
| 1271 Avenue of the Americas | 1.8M SF | 47 | 1961 | $24.45 | n/a |
| 135 West 50th Street | 781K SF | 23 | 1963 | $21.04 | Dec 2019, $285M |
| 745 Seventh Avenue | 1.0M SF | 32 | 1999 | $20.87 | n/a |
| 1211 Avenue of the Americas | 1.9M SF | 45 | 1973 | $24.22 | Aug 2006, $1.5B |
| 1285 Avenue of the Americas | 1.5M SF | 39 | 1961 | $26.41 | n/a |
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); ACRIS for the last deed that moved the whole lot for a real price (a price for several lots is their combined price; condominiums sell by the unit and show n/a). 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
- Formerly known as
- Exxon Building
- Other addresses
- 101-139 West 49th Street; 100-134 West 50th Street
- ZIP code
- 10020
- Building type
- Commercial condominium (city class RC)
- Total floor area
- 1,793,091 SF
- Commercial floor area
- 1,793,091 SF
- Office
- 1,771,454 SF
- Retail
- 21,637 SF
- Height
- 54 floors
- Average floor
- About 33,200 SF (floor area divided by floors)
- Year built
- 1970
- Lot area
- 98,206 SF
- Zoning district
- C6-5.5
- Built FAR
- 18.26
- Max commercial FAR
- 12
- Tax lot (BBL)
- 1010027501
Nearest subway
- 47-50 Sts-Rockefeller Ctr
- 49 St
- 50 St
Source: NYC Department of City Planning, PLUTO 26v2, pulled 2026-10-16; addresses from the Property Address Directory (PAD) 26b; former name checked against Wikipedia, 1251 Avenue of the Americas; 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 5 storefronts at 1251 Avenue of the Americas 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 2019.
- Storefronts registered for December 31, 2025
- 5
- Vacant that day
- 1
- Share vacant here
- 20.0%
- Share vacant across Midtown
- 14.3%
- Share vacant along Avenue of the Americas
- 14.1%
- Share vacant citywide
- 9.2%
- Condominium tax lots that filed
- 1
Vacant on December 31, by year
Own or lease out a storefront at 1251 Avenue of the Americas? 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
1251 Avenue of the Americas is a condominium of 56 tax lots. 1251 AMERICAS ASSOCIATES II, L.P., one of 4 owners of record on the roll, owns the units that make up 96% of its market value. For tax year 2026/27 the city values 1251 Avenue of the Americas at $1.14 billion and assesses it at $515 million. After phase-ins and exemptions its taxable value is $497 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 $53.9 million a year before abatements, roughly $30.07 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
- 1251 AMERICAS ASSOCIATES II, L.P. (96% of market value)
- Tax class
- Class 4 (commercial and industrial)
- City market value
- $1,144,444,300
- Land market value
- $234,901,000
- Assessed value
- $514,999,971
- Taxable value (phased in)
- $497,014,990
- Estimated yearly tax
- About $53.9 million
- Tax per SF of floor area
- About $30.07
- Condominium tax lots
- 56
- Owners of record
- 4
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 56 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.
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SEC filings (EDGAR)
Companies with offices here
One public company and 5 investment managers and funds give 1251 Avenue of the Americas as their office address in SEC filings.
Public company
Investment managers and funds
Source: U.S. Securities and Exchange Commission, EDGAR, Financial Statement Data Sets (2025 Q4 to 2026 Q3) and Form 13F Data Sets (through August 2026), pulled 2026-10-24; names as filed. The address is the one each company reports to the SEC. This is not a tenant roster: private companies and most smaller firms do not file with the SEC, a company can report a building it owns, and an address can trail a move by a quarter. Care-of addresses, blank check companies and asset-backed issuers are left out.
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NYC energy benchmarking (Local Law 84)
Energy score, grade and emissions
1251 Avenue of the Americas reported an ENERGY STAR score of 77 out of 100 for 2024 in its Local Law 84 benchmarking filing. Under Local Law 33 that score earns a B (70 to 84). Its site energy use came to 65.9 kBtu per square foot, 32% below the national median of 96.4 for a similar property. Its greenhouse gas emissions were about 14,850 metric tons of CO2e (6.39 kg per square foot).
- ENERGY STAR score (2024)
- 77 of 100
- Grade this score earns (Local Law 33)
- B (70 to 84)
- Property type (Portfolio Manager)
- Office
- Site energy use intensity
- 65.9 kBtu/SF
- National median for the type
- 96.4 kBtu/SF
- Greenhouse gas emissions
- 14,850 t CO2e
- Emissions per SF
- 6.39 kg CO2e
- Floor area in the filing
- 2,325,598 SF
- ENERGY STAR certified
- 2016, 2017, 2018, 2024
ENERGY STAR score by year
Energy sources in 2024
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. The grade is the one the filed score earns under the law's cutoffs; the Department of Buildings assigns the grade a building posts, which can differ.
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 62 jobs at 1251 Avenue of the Americas. In the last two years, interior work was permitted on 29 floors (floors 1, 2, 7, 8, 17, 18, 20 to 23, 25, 26, 28 to 31, 34 to 36, 41 to 43, 46 to 49 and 52 to 54, the cellar, the mezzanine and the sub-cellar). The newest build-out, on floors 22 and 23, was first permitted in September 2026 (construction, mechanical; filed cost estimate $600,000). A sidewalk shed permit here is active until November 22, 2026.
- New jobs, last 12 months
- 62
- Initial permits, last 12 months
- 90
- Newest job first permitted
- September 2026
- Interior build-outs, last 24 months
- 39
- Floors with interior work, last 24 months
- 1, 2, 7, 8, 17, 18, 20 to 23, 25, 26, 28 to 31, 34 to 36, 41 to 43, 46 to 49 and 52 to 54, cellar, mezzanine, sub-cellar
- Facade and sidewalk jobs, last 24 months
- 7
- Sidewalk shed permit
- Active until Nov 22, 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.
No office space listed in Midtown yet
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783 Madison 4th Floor
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Questions about 1251 Avenue of the Americas
What is the address of the former Exxon Building?
The former Exxon Building is at 1251 Avenue of the Americas, New York, NY 10020, in Midtown.
How big is 1251 Avenue of the Americas?
1251 Avenue of the Americas has about 1.8 million square feet of floor area in total, including 1.8 million square feet of office and 22,000 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 1251 Avenue of the Americas built?
City records list 1970 as the year built. The building is 54 floors tall.
What other addresses does 1251 Avenue of the Americas have?
City records list 101-139 West 49th Street and 100-134 West 50th Street on the same tax lot (BBL 1010027501) as 1251 Avenue of the Americas. A space listed on Leasemark at any of these addresses shows up on this page.
What is the ZIP code of 1251 Avenue of the Americas?
1251 Avenue of the Americas is in ZIP code 10020, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 1251 Avenue of the Americas, New York, NY 10020, in Midtown.
What is the zoning at 1251 Avenue of the Americas?
The lot is in the C6-5.5 zoning district. PLUTO lists a built floor area ratio (FAR) of 18.26 and a maximum commercial FAR of 12 for this lot.
What subway station is closest to 1251 Avenue of the Americas?
The closest subway station to 1251 Avenue of the Americas is 47-50 Sts-Rockefeller Ctr (the B, D, F and M trains), about 500 feet away in a straight line, roughly 2 minutes on foot. The MTA lists it as an accessible station. Also nearby: 49 St (the N, R and W trains), 3 min walk; 50 St (the 1 train), 3 min walk. Walking times are straight-line estimates; the street route is longer.
Who owns 1251 Avenue of the Americas?
1251 Avenue of the Americas is a condominium of 56 tax lots. 1251 AMERICAS ASSOCIATES II, L.P., one of 4 owners of record on the roll, owns the units that make up 96% of its market value. That is from the NYC Department of Finance's 2026/27 assessment roll (BBL 1010027501). Deeds and mortgages for each unit are public in ACRIS, the city's property records system.
Who are the tenants at 1251 Avenue of the Americas?
Leasemark does not have the building's tenant roster, but SEC filings name companies with offices at 1251 Avenue of the Americas. One public company reports the address as its principal executive office: READY CAPITAL CORP (RC). 5 investment managers and funds file 13F holdings reports from the address, including Daiwa America Strategic Advisors Corp; MUFG BANK, LTD.; and Richard Bernstein Advisors 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.
What is the energy grade of 1251 Avenue of the Americas?
1251 Avenue of the Americas reported an ENERGY STAR score of 77 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 77 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 65.9 kBtu per square foot, 32% below the national median of 96.4 for a similar property. Its greenhouse gas emissions were about 14,850 metric tons of CO2e (6.39 kg per square foot).
Is there construction at 1251 Avenue of the Americas?
In the 12 months to October 2026, the Department of Buildings issued first permits for 62 jobs at 1251 Avenue of the Americas. In the last two years, interior work was permitted on 29 floors (floors 1, 2, 7, 8, 17, 18, 20 to 23, 25, 26, 28 to 31, 34 to 36, 41 to 43, 46 to 49 and 52 to 54, the cellar, the mezzanine and the sub-cellar). The newest build-out, on floors 22 and 23, was first permitted in September 2026 (construction, mechanical; filed cost estimate $600,000). A sidewalk shed permit here is active until November 22, 2026. These are the Department of Buildings' DOB NOW work permits for tax lot 1010027501. 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 1251 Avenue of the Americas?
The Department of Finance's 2026/27 assessment roll lists a taxable value of $497 million for 1251 Avenue of the Americas (the sum of its 56 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 $53.9 million a year, roughly $30.07 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1010027501 show the actual bill.
What is the assessed value of 1251 Avenue of the Americas?
For tax year 2026/27, the NYC Department of Finance puts the market value of 1251 Avenue of the Americas at $1.14 billion ($234.9 million of it land) and its assessed value at $515 million, the 45% of market value the city assesses for Class 4 property. The city's market value rose 9% from 2022/23 ($1.05 billion) to 2026/27.
Are there vacant storefronts at 1251 Avenue of the Americas?
Owners registered 5 storefronts at 1251 Avenue of the Americas 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 2019. 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 1251 Avenue of the Americas?
No space at 1251 Avenue of the Americas 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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