Want · Office
Series B fintech needs 8,000 to 12,000 SF
Posted by the tenant · Fintech
- Where
- Midtown South, Flatiron +1
- Size
- 8,000 to 12,000 SF
- Budget
- to $85/SF
- Move in
- Jan 2027
Near subwayHigh ceilings
Owners: got a fit?I have a fit
Office building with commercial space · Flatiron, Manhattan
615 Avenue of the Americas
New York, NY 10011
615 Avenue of the Americas is a 5-floor office building with commercial space in Flatiron, Manhattan, built in 1877, with about 77,000 square feet of office space according to city records.
Also at 615-629 Avenue of the Americas, 101-111 West 18th Street and 100-108 West 19th Street.
- Office space
- 77K SF
- Floors
- 5
- Year built
- 1877
- Zoning
- C6-2A
The 55th largest of the 75 office buildings we track in Flatiron. Compare it with 6 neighbors
No space at 615 Avenue of the Americas is listed on Leasemark yet. Own or broker space here? List it free and it is matched against every active requirement the day it goes up, or import a spreadsheet of up to 50 spaces at once.
Compared with its neighbors
How 615 Avenue of the Americas compares
Next to the 6 nearest large office buildings, all within a 2 minute walk, 615 Avenue of the Americas ranks 5th of 7 by office floor area. Built in 1877, it is the oldest of them. Its estimated property tax, about $31.33 a square foot of floor area before abatements, is above the neighbors' median of $20.21.
| Building | Office space | Floors | Built | Tax / SF | Last sale |
|---|---|---|---|---|---|
| 615 Avenue of the Americas | 77K SF | 5 | 1877 | $31.33 | n/a |
| 125 West 18th Street | 189K SF | 8 | 1917 | $15.72 | n/a |
| Simpson, Crawford & Simpson Building, 635 Avenue of the Americas | 57K SF | 8 | 1902 | $33.91 | Jun 2021, $121M |
| Simpson, Crawford & Simpson Building, 641 Avenue of the Americas | 122K SF | 8 | 1902 | $24.27 | Jun 2021, $204M |
| 111 West 19th Street | 125K SF | 8 | 1901 | $15.16 | n/a |
| Alexander Building, 636 Avenue of the Americas | 56K SF | 7 | 1896 | $21.83 | n/a |
| 620 Avenue of the Americas | 211K SF | 7 | 1900 | $18.60 | 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 50,000 SF of the building's main use. Walking times are straight-line estimates.
NYC tax lot records
Building facts
- Other addresses
- 615-629 Avenue of the Americas; 101-111 West 18th Street; 100-108 West 19th Street
- ZIP code
- 10011
- Building type
- Office building with commercial space (city class O5)
- Total floor area
- 134,235 SF
- Commercial floor area
- 123,235 SF
- Office
- 77,005 SF
- Retail
- 46,230 SF
- Height
- 5 floors
- Year built
- 1877
- Last major alteration
- 1987
- Apartments
- 7
- Lot area
- 28,042 SF
- Zoning district
- C6-2A
- Built FAR
- 4.79
- Max commercial FAR
- 6
- Historic district
- Ladies' Mile Historic District
- Tax lot (BBL)
- 1007940030
Nearest subway
- 18 St
- 14 St
- 23 St
Source: NYC Department of City Planning, PLUTO 26v2, pulled 2026-09-30; addresses from the Property Address Directory (PAD) 26b; subway stations from the MTA Subway Stations dataset, pulled 2026-10-02. 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 625 OWNERSHIP as the owner of record. For tax year 2026/27 the city values 615 Avenue of the Americas at $86.1 million and assesses it at $38.8 million. After phase-ins and exemptions its taxable value is $38.8 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 $4.21 million a year before abatements, roughly $31.33 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
- 625 OWNERSHIP
- Tax class
- Class 4 (commercial and industrial)
- City market value
- $86,141,000
- Land market value
- $25,000,000
- Assessed value
- $38,763,450
- Estimated yearly tax
- About $4.21 million
- Tax per SF of floor area
- About $31.33
City market value by tax year
Source: 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 2026-10-02; 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.
NYC energy benchmarking (Local Law 84)
Energy use and emissions
615 Avenue of the Americas's 2024 Local Law 84 benchmarking filing got no ENERGY STAR score (no single use that ENERGY STAR scores covers more than half of the floor area), and Local Law 33 letter grades come from that score, so the filing does not yield an A to D grade. Its site energy use came to 66.2 kBtu per square foot, 53% above the national median of 43.3 for a similar property. Its greenhouse gas emissions were about 790 metric tons of CO2e (5.89 kg per square foot).
- ENERGY STAR score (2024)
- None given
- Property type (Portfolio Manager)
- Mixed Use Property
- Site energy use intensity
- 66.2 kBtu/SF
- National median for the type
- 43.3 kBtu/SF
- Greenhouse gas emissions
- 790 t CO2e
- Emissions per SF
- 5.89 kg CO2e
- Floor area in the filing
- 134,235 SF
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 2026-10-02; 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 September 2026, the Department of Buildings issued first permits for 1 job at 615 Avenue of the Americas. In the last two years, interior work was permitted on 2 floors (floors 2 and 3). The newest build-out, on floor 2, was first permitted in November 2025 (mechanical; filed cost estimate $14,000).
- New jobs, last 12 months
- 1
- Initial permits, last 12 months
- 1
- Newest job first permitted
- November 2025
- Interior build-outs, last 24 months
- 2
- Floors with interior work, last 24 months
- 2 and 3
Recent build-outs
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 2026-10-02 (permits issued through 2026-09-30). 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
615 Avenue of the Americas was designed by D. & J. Jardine and built in 1876-1877 in the neo-Grec style. It stands in the Ladies' Mile Historic District, so exterior changes and new signage go through the Landmarks Preservation Commission.
- Architect
- D. & J. Jardine
- Constructed
- 1876-1877
- Style
- neo-Grec
- Primary material
- Cast iron
- Built as
- Department store
Source: NYC Landmarks Preservation Commission, Individual Landmark and Historic District Building Database on NYC Open Data, pulled 2026-10-02. A designation can cover part of a lot, such as a facade or a lobby interior.
Office space nearby in Flatiron
Nothing is listed nearby yet. The labeled examples below show how a space appears; they are not on the market.
What a requirement here looks like
No live requirements for office space in Flatiron yet. These labeled examples show what tenants post. List a space in 615 Avenue of the Americas and we match it against every new one automatically.
Want · Office
Startup seeking furnished sublease
Posted by the tenant · Software
- Where
- Flatiron, Midtown South +1
- Size
- 6,000 to 11,000 SF
- Budget
- to $60/SF
- Move in
- Nov 2026
Furnished
Owners: got a fit?I have a fit
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Questions about 615 Avenue of the Americas
How big is 615 Avenue of the Americas?
615 Avenue of the Americas has about 134,000 square feet of floor area in total, including 77,000 square feet of office and 46,000 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 615 Avenue of the Americas built?
The Landmarks Preservation Commission's building records date 615 Avenue of the Americas to 1876-1877, designed by D. & J. Jardine. The building is 5 floors tall.
Who designed 615 Avenue of the Americas?
D. & J. Jardine, according to the Landmarks Preservation Commission's building records, which list the style as neo-Grec and its original use as a department store.
What other addresses does 615 Avenue of the Americas have?
City records list 615-629 Avenue of the Americas, 101-111 West 18th Street and 100-108 West 19th Street on the same tax lot (BBL 1007940030) as 615 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 615 Avenue of the Americas?
615 Avenue of the Americas 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 615 Avenue of the Americas, New York, NY 10011, in Flatiron.
What is the zoning at 615 Avenue of the Americas?
The lot is in the C6-2A zoning district. PLUTO lists a built floor area ratio (FAR) of 4.79 and a maximum commercial FAR of 6 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 615 Avenue of the Americas?
The closest subway station to 615 Avenue of the Americas is 18 St (the 1 train), about 800 feet away in a straight line, roughly 3 minutes on foot. Also nearby: 14 St (the 1, 2, 3, F, M and L trains, connected to 6 Av), 3 min walk; 23 St (the F and M trains), 4 min walk. Walking times are straight-line estimates; the street route is longer.
Who owns 615 Avenue of the Americas?
The NYC Department of Finance's 2026/27 assessment roll lists 625 OWNERSHIP as the owner of record of 615 Avenue of the Americas (BBL 1007940030). Deeds and mortgages for the lot are public in ACRIS, the city's property records system.
Does 615 Avenue of the Americas have an energy grade?
615 Avenue of the Americas's 2024 Local Law 84 benchmarking filing got no ENERGY STAR score (no single use that ENERGY STAR scores covers more than half of the floor area), and Local Law 33 letter grades come from that score, so the filing does not yield an A to D grade. Its site energy use came to 66.2 kBtu per square foot, 53% above the national median of 43.3 for a similar property. Its greenhouse gas emissions were about 790 metric tons of CO2e (5.89 kg per square foot).
Is there construction at 615 Avenue of the Americas?
In the 12 months to September 2026, the Department of Buildings issued first permits for 1 job at 615 Avenue of the Americas. In the last two years, interior work was permitted on 2 floors (floors 2 and 3). The newest build-out, on floor 2, was first permitted in November 2025 (mechanical; filed cost estimate $14,000). These are the Department of Buildings' DOB NOW work permits for tax lot 1007940030. 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 615 Avenue of the Americas?
The Department of Finance's 2026/27 assessment roll lists a taxable value of $38.8 million for 615 Avenue of the Americas. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $4.21 million a year, roughly $31.33 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1007940030 show the actual bill.
What is the assessed value of 615 Avenue of the Americas?
For tax year 2026/27, the NYC Department of Finance puts the market value of 615 Avenue of the Americas at $86.1 million ($25 million of it land) and its assessed value at $38.8 million, the 45% of market value the city assesses for Class 4 property. The city's market value fell 2% from 2022/23 ($87.9 million) to 2026/27.
Is there office space for lease at 615 Avenue of the Americas?
No space at 615 Avenue of the Americas 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
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- F M at 23 St