Office building · Hell's Kitchen, Manhattan
609 West 51st Street
New York, NY 10019
609 West 51st Street is a 7-floor office building in Hell's Kitchen, Manhattan, built in 1924, with about 122,000 square feet of office space according to city records.
Also at 609-619 West 51st Street and 606-610 West 52nd Street.
- Office space
- 122K SF
- Floors
- 7
- Year built
- 1924
- Zoning
- M2-4
The 9th largest of the 18 office buildings we track in Hell's Kitchen. Compare it with 6 neighbors
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Compared with its neighbors
How 609 West 51st Street compares
Next to the 6 nearest large office buildings, all within a 6 minute walk, 609 West 51st Street ranks 5th of 7 by office floor area. It went up in 1924; the median neighbor dates from 1924. Its estimated property tax, about $11.64 a square foot of floor area before abatements, is close to the neighbors' median of $12.01.
| Building | Office space | Floors | Built | Tax / SF | Last sale |
|---|---|---|---|---|---|
| 609 West 51st Street | 122K SF | 7 | 1924 | $11.64 | n/a |
| 601 West 50th Street | 104K SF | 6 | 1940 | $10.40 | Sep 2026, $60M (2 lots) |
| 619 West 54th Street | 320K SF | 10 | 1900 | $9.80 | Oct 2012, $112M |
| 787 Eleventh Avenue | 370K SF | 10 | 1929 | $18.66 | n/a |
| 514 West 49th Street | 102K SF | 4 | 1920 | Exempt | n/a |
| 636 Eleventh Avenue | 530K SF | 11 | 1917 | $19.51 | Apr 2005, $95M |
| 513 West 56th Street | 186K SF | 10 | 1984 | $12.01 | 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
- Other addresses
- 609-619 West 51st Street; 606-610 West 52nd Street
- ZIP code
- 10019
- Building type
- Office building (city class O3)
- Total floor area
- 121,638 SF
- Commercial floor area
- 121,638 SF
- Office
- 121,638 SF
- Height
- 7 floors
- Average floor
- About 17,400 SF (floor area divided by floors)
- Year built
- 1924
- Last major alteration
- 2000
- Lot area
- 25,100 SF
- Zoning district
- M2-4
- Built FAR
- 4.85
- Max commercial FAR
- 5
- Tax lot (BBL)
- 1010990021
Nearest subway
- 50 St
- 59 St-Columbus Circle
- 50 St
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 Department of Finance records
Owner, property tax and assessed value
The Department of Finance lists PIANO DEVELOPMENT CORPORATION as the owner of record. For tax year 2026/27 the city values 609 West 51st Street at $31.7 million and assesses it at $14.3 million. After phase-ins and exemptions its taxable value is $13 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 $1.42 million a year before abatements, roughly $11.64 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.
- Owner of record
- PIANO DEVELOPMENT CORPORATION
- Tax class
- Class 4 (commercial and industrial)
- City market value
- $31,749,000
- Land market value
- $17,000,000
- Assessed value
- $14,287,050
- Taxable value (phased in)
- $13,047,970
- Estimated yearly tax
- About $1.42 million
- Tax per SF of floor area
- About $11.64
City market value by tax year
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How to find who owns any NYC buildingSource: NYC Department of Finance, Property Valuation and Assessment Data (2026/27 roll; 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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NYC energy benchmarking (Local Law 84)
Energy score, grade and emissions
609 West 51st Street reported an ENERGY STAR score of 24 out of 100 for 2024 in its Local Law 84 benchmarking filing. Under Local Law 33 that score earns a D (under 55). Its site energy use came to 116.8 kBtu per square foot, 41% above the national median of 83.1 for a similar property. Its greenhouse gas emissions were about 1,301 metric tons of CO2e (10.7 kg per square foot).
- ENERGY STAR score (2024)
- 24 of 100
- Grade this score earns (Local Law 33)
- D (under 55)
- Property type (Portfolio Manager)
- Office
- Site energy use intensity
- 116.8 kBtu/SF
- National median for the type
- 83.1 kBtu/SF
- Greenhouse gas emissions
- 1,301 t CO2e
- Emissions per SF
- 10.7 kg CO2e
- Floor area in the filing
- 121,638 SF
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 1 job at 609 West 51st Street. In the last two years, interior work was permitted on one floor (floor 6). The newest build-out, on floor 6 and the roof, was first permitted in May 2026 (mechanical, structural; filed cost estimate $400,000).
- New jobs, last 12 months
- 1
- Initial permits, last 12 months
- 2
- Newest job first permitted
- May 2026
- Interior build-outs, last 24 months
- 1
- Floors with interior work, last 24 months
- 6
Recent build-outs
New jobs by year
Build-outs across Hell's KitchenWhere 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 Hell's Kitchen yet
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Questions about 609 West 51st Street
How big is 609 West 51st Street?
609 West 51st Street has about 122,000 square feet of floor area in total, including 122,000 square feet of office, according to NYC PLUTO 26v2. These are the city's estimates for the whole building, not space that is available.
When was 609 West 51st Street built?
City records list 1924 as the year built, with a major alteration recorded in 2000. The building is 7 floors tall.
What other addresses does 609 West 51st Street have?
City records list 609-619 West 51st Street and 606-610 West 52nd Street on the same tax lot (BBL 1010990021) as 609 West 51st Street. A space listed on Leasemark at any of these addresses shows up on this page.
What is the ZIP code of 609 West 51st Street?
609 West 51st Street is in ZIP code 10019, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 609 West 51st Street, New York, NY 10019, in Hell's Kitchen.
What is the zoning at 609 West 51st Street?
The lot is in the M2-4 zoning district. PLUTO lists a built floor area ratio (FAR) of 4.85 and a maximum commercial FAR of 5 for this lot.
What subway station is closest to 609 West 51st Street?
The closest subway station to 609 West 51st Street is 50 St (the C and E trains), about 0.6 miles away in a straight line, roughly 11 minutes on foot. The MTA lists it as partly accessible. Also nearby: 59 St-Columbus Circle (the 1, A, B, C and D trains), 14 min walk; 50 St (the 1 train), 14 min walk. Walking times are straight-line estimates; the street route is longer.
Who owns 609 West 51st Street?
The NYC Department of Finance's 2026/27 assessment roll lists PIANO DEVELOPMENT CORPORATION as the owner of record of 609 West 51st Street (BBL 1010990021). Deeds and mortgages for the lot are public in ACRIS, the city's property records system.
What is the energy grade of 609 West 51st Street?
609 West 51st Street reported an ENERGY STAR score of 24 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 24 earns a D. 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 116.8 kBtu per square foot, 41% above the national median of 83.1 for a similar property. Its greenhouse gas emissions were about 1,301 metric tons of CO2e (10.7 kg per square foot).
Is there construction at 609 West 51st Street?
In the 12 months to October 2026, the Department of Buildings issued first permits for 1 job at 609 West 51st Street. In the last two years, interior work was permitted on one floor (floor 6). The newest build-out, on floor 6 and the roof, was first permitted in May 2026 (mechanical, structural; filed cost estimate $400,000). These are the Department of Buildings' DOB NOW work permits for tax lot 1010990021. 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 609 West 51st Street?
The Department of Finance's 2026/27 assessment roll lists a taxable value of $13 million for 609 West 51st Street. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $1.42 million a year, roughly $11.64 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1010990021 show the actual bill.
What is the assessed value of 609 West 51st Street?
For tax year 2026/27, the NYC Department of Finance puts the market value of 609 West 51st Street at $31.7 million ($17 million of it land) and its assessed value at $14.3 million, the 45% of market value the city assesses for Class 4 property. The city's market value rose 18% from 2022/23 ($27 million) to 2026/27.
Is there office space for lease at 609 West 51st Street?
No space at 609 West 51st Street 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.
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Hell's Kitchen
Transit hubs in Hell's Kitchen
- C E at 50 St
- 1 at 50 St
- A C E at 42 St-Port Authority