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
Office building with commercial space · Flatiron, Manhattan
New York, NY 10003
873 Broadway is an 8-floor office building with commercial space in Flatiron, Manhattan, built in 1880, with about 47,000 square feet of office space according to city records.
Also at 877-879 Broadway, 15-17 East 18th Street and 25 East 18th Street.
The 80th largest of the 90 office buildings we track in Flatiron. Compare it with 6 neighbors
No space at 873 Broadway 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. Nothing free right now? Get tenant alerts for Flatiron and hear the moment a tenant posts a requirement there.
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Compared with its neighbors
Next to the 6 nearest large office buildings, all within a 1 minute walk, 873 Broadway ranks 6th of 7 by office floor area. It went up in 1880; the median neighbor dates from 1895. Its estimated property tax, about $11.62 a square foot of floor area before abatements, is below the neighbors' median of $23.71.
| Building | Office space | Floors | Built | Tax / SF | Last sale |
|---|---|---|---|---|---|
| 873 Broadway | 47K SF | 8 | 1880 | $11.62 | n/a |
| 881 Broadway | 208K SF | 7 | 1896 | $22.94 | n/a |
| W. & J. Sloane Building, 880 Broadway | 62K SF | 6 | 1882 | $28.76 | n/a |
| Constable Building, 109 Fifth Avenue | 189K SF | 13 | 1895 | $24.47 | n/a |
| 33 East 18th Street | 63K SF | 10 | 1900 | $19.55 | Feb 2025, $38M |
| Ely Building, 37 East 18th Street | 45K SF | 10 | 1897 | $17.76 | Aug 2024, $27M |
| 895 Broadway | 50K SF | 5 | 1869 | $34.04 | 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
Source: NYC Department of City Planning, PLUTO 26v2, pulled 2026-10-05; addresses from the Property Address Directory (PAD) 26b; subway stations from the MTA Subway Stations dataset, pulled 2026-10-05. 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)
Owners registered 6 storefronts at 873 Broadway for December 31, 2024, the newest annual filing the city has published, and none stood vacant that day.
Need a storefront in Flatiron? Get matchedStorefront vacancy across New York City
Source: NYC Department of Finance, Storefronts Reported Vacant or Not (Local Law 157), annual filings for 2019 to 2024, pulled 2026-10-08. 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 2024 filing was due June 3, 2025, 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
The Department of Finance lists 873 BROADWAY LLC as the owner of record. For tax year 2026/27 the city values 873 Broadway at $23.3 million and assesses it at $10.5 million. After phase-ins and exemptions its taxable value is $9.9 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 $1.07 million a year before abatements, roughly $11.62 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.
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 2026-10-08; 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 873 Broadway? List a space here free and we match it against every active requirement.
NYC energy benchmarking (Local Law 84)
873 Broadway reported an ENERGY STAR score of 64 out of 100 for 2024 in its Local Law 84 benchmarking filing. Under Local Law 33 that score earns a C (55 to 69). Its site energy use came to 93.9 kBtu per square foot, 17% below the national median of 113.6 for a similar property. Its greenhouse gas emissions were about 880 metric tons of CO2e (8.47 kg per square foot).
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 2026-10-08; 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.
Local Law 97 of 2019, estimated
At its 2024 energy use, 873 Broadway comes to about 744 metric tons of CO2e a year under Local Law 97's coefficients, against a limit of 788 tons for 2024 to 2029 (94% of the limit), so it would owe no penalty. From 2030 the limit drops to 280 tons and the same energy use counts as about 555 tons, about 275 tons over, or an estimated $74,000 a year unless the building cuts its emissions.
Estimated from the owner's 2024 Local Law 84 filing, which reports energy by source and floor area by use: Office 103,900 SF. It applies the coefficients and per-use limits in Department of Buildings rule 1 RCNY 103-14 and Administrative Code 28-320.3.1.1 (as the Department lists them) and the $268 per ton penalty, checked 2026-10-04. It is not the building's Local Law 97 report: that report can count renewable energy credits, solar and storage deductions and, for 2024 and 2025, the law's occupancy group limits where higher, and penalties can be reduced for good faith efforts.
Change these numbers in the Local Law 97 calculator to see what a cut in energy use would do to the penalty.
Own or manage 873 Broadway? List a space here free and we match it against every active requirement.
NYC Department of Buildings permits
In the 12 months to October 2026, the Department of Buildings issued first permits for 1 job at 873 Broadway.
Build-outs across FlatironWhere NYC offices are being built out
Source: NYC Department of Buildings, DOB NOW: Build Approved Permits, pulled 2026-10-08 (permits issued through 2026-10-06). 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.
Nothing is listed nearby yet. The labeled examples below show how a space appears; they are not on the market.
No live requirements for office space in Flatiron yet. These labeled examples show what tenants post. List a space in 873 Broadway and we match it against every new one automatically.
Posted by the tenant · Fintech
Posted by the tenant · Software
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873 Broadway has about 92,000 square feet of floor area in total, including 47,000 square feet of office and 15,000 square feet of retail, according to NYC PLUTO 26v2. These are the city's estimates for the whole building, not space that is available.
City records list 1880 as the year built, with a major alteration recorded in 2012. The building is 8 floors tall.
City records list 877-879 Broadway, 15-17 East 18th Street and 25 East 18th Street on the same tax lot (BBL 1008470016) as 873 Broadway. A space listed on Leasemark at any of these addresses shows up on this page.
873 Broadway is in ZIP code 10003, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 873 Broadway, New York, NY 10003, in Flatiron.
The lot is in the M1-5M zoning district. PLUTO lists a built floor area ratio (FAR) of 6.37 and a maximum commercial FAR of 5 for this lot. It is inside the Ladies' Mile Historic District, so exterior changes go through the Landmarks Preservation Commission.
The closest subway station to 873 Broadway is 14 St-Union Sq (the 4, 5, 6, L, N, Q, R and W trains), about 900 feet away in a straight line, roughly 3 minutes on foot. The MTA lists it as an accessible station. Also nearby: 23 St (the R and W trains), 5 min walk; 23 St-Baruch College (the 6 train), 5 min walk. Walking times are straight-line estimates; the street route is longer.
The NYC Department of Finance's 2026/27 assessment roll lists 873 BROADWAY LLC as the owner of record of 873 Broadway (BBL 1008470016). Big buildings are usually held through a company set up for that one property, so the name on the roll can differ from the landlord's brand or the managing agent. Deeds and mortgages for the lot are public in ACRIS, the city's property records system.
873 Broadway reported an ENERGY STAR score of 64 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 64 earns a C. 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 93.9 kBtu per square foot, 17% below the national median of 113.6 for a similar property. Its greenhouse gas emissions were about 880 metric tons of CO2e (8.47 kg per square foot).
At its 2024 energy use, 873 Broadway comes to about 744 metric tons of CO2e a year under Local Law 97's coefficients, against a limit of 788 tons for 2024 to 2029 (94% of the limit), so it would owe no penalty. From 2030 the limit drops to 280 tons and the same energy use counts as about 555 tons, about 275 tons over, or an estimated $74,000 a year unless the building cuts its emissions. This is an estimate from the owner's 2024 benchmarking filing using the coefficients and per-use limits in the law and the Department of Buildings rule, at $268 per ton over. It is not the building's Local Law 97 report, which can count credits and deductions this estimate cannot.
In the 12 months to October 2026, the Department of Buildings issued first permits for 1 job at 873 Broadway. These are the Department of Buildings' DOB NOW work permits for tax lot 1008470016. A permit is approval to do the work; it does not say who the work is for or whether it is finished.
The Department of Finance's 2026/27 assessment roll lists a taxable value of $9.9 million for 873 Broadway. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $1.07 million a year, roughly $11.62 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1008470016 show the actual bill.
For tax year 2026/27, the NYC Department of Finance puts the market value of 873 Broadway at $23.3 million ($9.12 million of it land) and its assessed value at $10.5 million, the 45% of market value the city assesses for Class 4 property. The city's market value rose 1% from 2022/23 ($23.1 million) to 2026/27.
Owners registered 6 storefronts at 873 Broadway for December 31, 2024, the newest annual filing the city has published, and none stood 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.
No space at 873 Broadway 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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