Office building with commercial space · Flatiron, Manhattan
18 West 18th Street
New York, NY 10011
18 West 18th Street is an 11-floor office building with commercial space in Flatiron, Manhattan, built in 1904, with about 158,000 square feet of office space according to city records.
Also at 23-27 West 17th Street and 18-24 West 18th Street.
- Office space
- 158K SF
- Floors
- 11
- Year built
- 1904
- Zoning
- C6-4A
The 28th largest of the 90 office buildings we track in Flatiron. Compare it with 6 neighbors
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Compared with its neighbors
How 18 West 18th Street compares
Next to the 6 nearest large office buildings, all within a 1 minute walk, 18 West 18th Street ranks 3rd of 7 by office floor area. It went up in 1904; the median neighbor dates from 1905. Its estimated property tax, about $11.19 a square foot of floor area before abatements, is above the neighbors' median of $10.63.
| Building | Office space | Floors | Built | Tax / SF |
|---|---|---|---|---|
| 18 West 18th Street | 158K SF | 11 | 1904 | $11.19 |
| 33 West 17th Street | 42K SF | 11 | 1908 | $8.64 |
| 6 West 18th Street | 47K SF | 12 | 1910 | $8.64 |
| 26 West 17th Street | 101K SF | 12 | 1908 | $9.17 |
| Cluett Building, 23 West 18th Street | 166K SF | 11 | 1902 | $12.09 |
| 7 West 18th Street | 39K SF | 9 | 1897 | $13.76 |
| 122 Fifth Avenue | 223K SF | 11 | 1900 | $30.22 |
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
- 23-27 West 17th Street; 18-24 West 18th Street
- ZIP code
- 10011
- Building type
- Office building with commercial space (city class O6)
- Total floor area
- 173,152 SF
- Commercial floor area
- 173,152 SF
- Office
- 157,500 SF
- Retail
- 15,652 SF
- Height
- 11 floors
- Average floor
- About 15,700 SF (floor area divided by floors)
- Year built
- 1904
- Lot area
- 13,800 SF
- Zoning district
- C6-4A
- Built FAR
- 12.55
- Max commercial FAR
- 10
- Historic district
- Ladies' Mile Historic District
- Tax lot (BBL)
- 1008190056
Nearest subway
- 14 St
- 14 St-Union Sq
- 23 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 storefront registry (Local Law 157)
Storefronts and vacancy
Owners registered one storefront at 18 West 18th Street for December 31, 2025, the newest annual filing the city has published, and it was not vacant that day.
- Storefronts registered for December 31, 2025
- 1
- Vacant that day
- 0
- Share vacant across Flatiron
- 11.8%
- Share vacant along West 18th Street
- 3.9%
- Share vacant citywide
- 9.2%
Vacant on December 31, by year
Need a storefront in Flatiron? Get matchedNYC storefront vacancy report
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, 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
The Department of Finance lists 17-18 MANAGEMENT COMPANY as the owner of record. For tax year 2026/27 the city values 18 West 18th Street at $43.8 million and assesses it at $19.7 million. After phase-ins and exemptions its taxable value is $17.9 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 $1.94 million a year before abatements, roughly $11.19 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
- 17-18 MANAGEMENT COMPANY
- Tax class
- Class 4 (commercial and industrial)
- City market value
- $43,823,000
- Land market value
- $4,200,000
- Assessed value
- $19,720,350
- Taxable value (phased in)
- $17,859,190
- Estimated yearly tax
- About $1.94 million
- Tax per SF of floor area
- About $11.19
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; 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 one investment manager give 18 West 18th Street as their office address in SEC filings.
Public company
Investment manager
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 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 18 West 18th Street.
- New jobs, last 12 months
- 2
- Initial permits, last 12 months
- 2
- Newest job first permitted
- January 2026
- Interior build-outs, last 24 months
- 0
- Facade and sidewalk jobs, last 24 months
- 2
New jobs by year
Build-outs across FlatironWhere 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
18 West 18th Street was designed by Buchman & Fox and built in 1902-1904 in the Beaux-Arts style. It stands in the Ladies' Mile Historic District, so exterior changes and new signage go through the Landmarks Preservation Commission.
- Architect
- Buchman & Fox
- Constructed
- 1902-1904
- Style
- Beaux-Arts
- Primary material
- Brick
- Built as
- Store and lofts
Source: NYC Landmarks Preservation Commission, Individual Landmark and Historic District Building Database 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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Before you sign
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Questions about 18 West 18th Street
How big is 18 West 18th Street?
18 West 18th Street has about 173,000 square feet of floor area in total, including 158,000 square feet of office and 16,000 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 18 West 18th Street built?
The Landmarks Preservation Commission's building records date 18 West 18th Street to 1902-1904, designed by Buchman & Fox. The building is 11 floors tall.
Who designed 18 West 18th Street?
Buchman & Fox, according to the Landmarks Preservation Commission's building records, which list the style as Beaux-Arts and its original use as store and lofts.
What other addresses does 18 West 18th Street have?
City records list 23-27 West 17th Street and 18-24 West 18th Street on the same tax lot (BBL 1008190056) as 18 West 18th Street. A space listed on Leasemark at any of these addresses shows up on this page.
What is the ZIP code of 18 West 18th Street?
18 West 18th Street is in ZIP code 10011, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 18 West 18th Street, New York, NY 10011, in Flatiron.
What is the zoning at 18 West 18th Street?
The lot is in the C6-4A zoning district. PLUTO lists a built floor area ratio (FAR) of 12.55 and a maximum commercial FAR of 10 for this lot. It is inside the Ladies' Mile Historic District, so exterior changes go through the Landmarks Preservation Commission.
What subway station is closest to 18 West 18th Street?
The closest subway station to 18 West 18th Street is 14 St (the 1, 2, 3, F, M and L trains, connected to 6 Av), about 800 feet away in a straight line, roughly 3 minutes on foot. The MTA lists it as an accessible station. Also nearby: 14 St-Union Sq (the 4, 5, 6, L, N, Q, R and W trains), 5 min walk; 23 St (the R and W trains), 6 min walk. Walking times are straight-line estimates; the street route is longer.
Who owns 18 West 18th Street?
The NYC Department of Finance's 2026/27 assessment roll lists 17-18 MANAGEMENT COMPANY as the owner of record of 18 West 18th Street (BBL 1008190056). Deeds and mortgages for the lot are public in ACRIS, the city's property records system.
Who are the tenants at 18 West 18th Street?
Leasemark does not have the building's tenant roster, but SEC filings name companies with offices at 18 West 18th Street. One public company reports the address as its principal executive office: WW INTERNATIONAL, INC. (WW). One investment manager files 13F holdings reports from the address: Feynman Point Asset Management 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.
Is there construction at 18 West 18th Street?
In the 12 months to October 2026, the Department of Buildings issued first permits for 2 jobs at 18 West 18th Street. These are the Department of Buildings' DOB NOW work permits for tax lot 1008190056. 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 18 West 18th Street?
The Department of Finance's 2026/27 assessment roll lists a taxable value of $17.9 million for 18 West 18th Street. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $1.94 million a year, roughly $11.19 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1008190056 show the actual bill.
What is the assessed value of 18 West 18th Street?
For tax year 2026/27, the NYC Department of Finance puts the market value of 18 West 18th Street at $43.8 million ($4.2 million of it land) and its assessed value at $19.7 million, the 45% of market value the city assesses for Class 4 property. The city's market value rose 34% from 2022/23 ($32.7 million) to 2026/27.
Are there vacant storefronts at 18 West 18th Street?
Owners registered one storefront at 18 West 18th Street for December 31, 2025, the newest annual filing the city has published, and it was not vacant that day. These are the owners' filings with the Department of Finance under Local Law 157, so a storefront may have come free since. Owners and brokers can list a storefront on Leasemark for free.
Is there office space for lease at 18 West 18th Street?
No space at 18 West 18th 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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Flatiron
Transit hubs in Flatiron
- R W at 23 St
- 4 5 6 L N Q R W at 14 St-Union Sq
- F M at 23 St