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
- Feb 2027
Near subwayHigh ceilings
Owners: got a fit?I have a fit
Manhattan
Commercial space in Union Square
Union Square is one of the best-connected transit hubs in Manhattan, and its retail corridors on 14th Street and Broadway attract national brands. Office inventory is mostly boutique loft space favored by education, tech, and nonprofit tenants.
- Commercial properties
- 367
- Retail stock
- 2.9M SF
- Median year built
- 1909
- Known for
- Retail, Office, Restaurant
Building figures are existing stock from NYC PLUTO 26v2 tax lot records, not space on the market. More below.
On Leasemark No spaces or requirements posted in Union Square yet. List a space and it is matched to every new requirement, or post what you need and get matched as spaces arrive.
Nothing listed in Union Square yet
The labeled examples below show how spaces appear here; they are not on the market. Get an email the day a space here is posted, or list yours and it is matched to requirements the day it goes up.
What a requirement here looks like
No live requirements in Union Square yet. These labeled examples show what tenants post.
For owners and brokers
Hear the moment a tenant looks for space in Union Square
Tenant alerts send a notification when a requirement that fits your neighborhood, types and sizes is posted, before you list anything. Real requirements only. Free during Broker Pro early access.
NYC tax lot records
The building stock in Union Square
What already stands here, from the city's own property data. Useful for sizing a search before a single space is listed.
- Commercial properties
- 367
- Office space
- 7.5M SF
- Retail space
- 2.9M SF
- Built before 1940
- 80%
Largest retail buildings
All 57 large commercial buildings in Union SquareAge, height and zoning
- Median year built: 1909.
- Median height: 7 floors.
- Most common zoning districts: C6-1 (76), C6-4 (43), C6-2A (39).
- Historic districts: Ladies' Mile Historic District (78 lots), Gramercy Park Historic District (4 lots), Greenwich Village Historic District (3 lots).
- 28 lots are designated city landmarks.
Source: NYC Department of City Planning, PLUTO 26v2, pulled 2026-10-16. Counts cover tax lots with commercial floor area within about 0.3 mi of Union Square's commercial core, and each lot counts toward one neighborhood only, so boundaries are approximate. Building figures are the city's floor-area estimates, not available space.
MTA station data
Subway stations in Union Square
Every station within about 0.5 mi of Union Square's commercial core, closest first. Stations joined by a free transfer count once.
- Stations
- 8
- Subway lines
- 13
- Fully accessible
- 3 of 8
- Closest
- 14 St-Union Sq, 1 min walk
The 8 stations
- 14 St-Union Sq
- 14 St
- 3 Av
- 23 St-Baruch College
- 23 St
- 8 St-NYU
- Astor Pl
- 23 St
Lines
The 1, 2, 3, 4, 5, 6, F, L, M, N, Q, R and W trains stop within about 0.5 mi of Union Square's core.
Step-free access
- 14 St-Union Sq (4 5 6 L N Q R W) is fully accessible.
- 14 St (1 2 3 F M) is fully accessible.
- 23 St-Baruch College (6) is fully accessible.
Source: Metropolitan Transportation Authority, MTA Subway Stations, pulled 2026-10-16. Walking times are straight-line estimates from the nearest point of Union Square's commercial core (the same area as the building counts), so the street route is longer. Accessibility is the MTA's rating for the named station. PATH, LIRR, Metro-North and ferries are not in this data.
NYC property records (ACRIS)
Recent building sales in Union Square
10 sales of the large commercial buildings Leasemark tracks in Union Square have been recorded since 2016, $742.4 million in all. The newest 6 are below.
Newest sales
Since 2016
- Largest: 797 Broadway, $255 million in November 2024.
- Median price: about $651 a square foot of floor area, across 9 one-building sales.
- Newest deed on record: March 2026. The city's open data runs about a month behind.
Source: NYC Department of Finance, ACRIS, Real Property Master, Legals and Parties, pulled 2026-10-16; prices as the deeds state them, buyers named only when they are companies. These are sales of the large buildings Leasemark tracks, not every sale here: condo buildings (sold unit by unit), partial interests and sales of the company that owns a building are left out.
NYC Department of Finance
Commercial property taxes in Union Square
Of the 57 large commercial buildings Leasemark tracks in Union Square, 53 carry property tax on the city's 2026/27 assessment roll. Their median estimated tax is about $19.55 per square foot of floor area a year, before abatements.
Largest estimated bills
Across 53 taxed buildings
- The middle half pay between $14.23 and $24.49 a square foot of floor area a year.
- Manhattan median: $13.55 a square foot, across 1388 large buildings Leasemark tracks.
- Median market value on the roll: about $415 a square foot. That is the city's valuation for tax, not a sale price.
- 4 buildings are fully exempt, including 124 East 14th Street and 60 Fifth Avenue. Exemptions like these are common for government, nonprofit and PILOT properties.
4th highest of 73 NYC neighborhoods by tax per SFHow taxes show up in a lease
Source: NYC Department of Finance, Property Valuation and Assessment Data, 2026/27 roll, pulled 2026-10-16. Estimates are the taxable value after exemptions times the Class 4 rate of 10.848% (tax year 2025/26, the latest the city lists), divided by the building's floor area in PLUTO. They leave out abatements such as ICAP, payment-in-lieu-of-taxes agreements and charges, so actual bills differ. Large buildings only (35,000 SF and up in Manhattan).
NYC Department of Buildings permits
Interior build-outs in Union Square
In the 12 months to October 2026, the Department of Buildings issued first permits for 81 interior build-outs in 38 of the 57 large commercial buildings Leasemark tracks in Union Square, with work permitted on 99 floors in all. Their filed cost estimates add up to about $43 million.
Most build-outs, last 12 months
- 67% of the buildings tracked here had a build-out, against 61% across Manhattan.
Source: NYC Department of Buildings, DOB NOW: Build Approved Permits, pulled 2026-10-24 (permits issued through 2026-10-22). A build-out groups interior jobs (construction, mechanical, plumbing, sprinklers and the like) on the same floors first permitted within 120 days of each other, dated by its first permit. Only the large buildings Leasemark tracks count (35,000 SF and up), not every permit in the neighborhood. Costs are the estimates filed with the jobs. A permit does not say who the work is for.
Before you sign
Plain-English guides to square footage, rent and lease terms in New York, and free calculators to run your own numbers.
How much is commercial rent in NYC? Per square foot, by borough
What NYC office, retail and industrial buildings collect per square foot in each borough, from the city's own filings, with the monthly math and the costs on top of rent.
Good guy guarantee in NYC commercial leases
How a good guy guarantee works in a NYC commercial lease: what it covers, how the guarantor gets released, what to negotiate and the 2025 surrender ruling.
Retail lease terms in New York: percentage rent, escalations and more
A New York retail lease covers much more than rent. Here is what percentage rent, escalations, pass-throughs, use clauses and restaurant terms mean for you.
Questions about Union Square
How much commercial space is there in Union Square?
New York City's PLUTO tax lot data (26v2) records about 12.3 million square feet of commercial floor area across 367 properties in the part of Union Square Leasemark covers, including about 7.5 million square feet of office and about 2.9 million square feet of retail. The largest retail building by that measure is 44 East 14th Street, at about 263,000 square feet. That is the existing building stock, not space currently available.
What subway lines serve Union Square?
Eight subway stations sit within about 0.5 mi of Union Square's commercial core, served by the 1, 2, 3, 4, 5, 6, F, L, M, N, Q, R and W trains. The closest is 14 St-Union Sq (4 5 6 L N Q R W), roughly 1 minute on foot; then 14 St (1 2 3 F M L), 3 Av (L), 23 St-Baruch College (6), 23 St (R W), 8 St-NYU (R W), Astor Pl (6) and 1 more. Walking times are straight-line estimates from MTA station data.
Which subway stations in Union Square are accessible?
Three of the eight stations within about 0.5 mi of Union Square's commercial core are fully accessible, per the MTA: 14 St-Union Sq (4 5 6 L N Q R W), 14 St (1 2 3 F M) and 23 St-Baruch College (6).
When did a large commercial building in Union Square last sell?
The newest sale on record is 88 University Place, which sold in March 2026 for $46 million to 88U OWNER LLC, per the deed recorded with the city. 10 sales, $742.4 million in all, have been recorded of the large commercial buildings Leasemark tracks in Union Square since 2016.
How much are commercial property taxes in Union Square?
On the Department of Finance's 2026/27 assessment roll, the 53 large commercial buildings Leasemark tracks in Union Square that pay property tax come to a median of about $19.55 per square foot of floor area a year, with the middle half between $14.23 and $24.49. That is the taxable value after exemptions times the Class 4 rate of 10.848% (tax year 2025/26, the latest the city lists), before abatements such as ICAP. The largest estimated bill is Merchants' Exchange Building, 114 Fifth Avenue, about $9.96 million a year. 4 more buildings are fully exempt. Many office leases pass a tenant's share of increases over a base year through as additional rent.
How much build-out work is happening in Union Square?
In the 12 months to October 2026, the Department of Buildings issued first permits for 81 interior build-outs in 38 of the 57 large commercial buildings Leasemark tracks in Union Square, with work permitted on 99 floors in all. Their filed cost estimates add up to about $43 million. The most were at 32 Union Square (6 build-outs). A build-out here is interior work on the same floors (construction, mechanical, plumbing, sprinklers and the like) first permitted within 120 days. New interior work usually follows a lease, so it is a rough sign of where tenants are moving in, but a permit does not say who the work is for.
Do tenants in Union Square pay the NYC Commercial Rent Tax?
Yes, for larger leases. Union Square is in Manhattan below 96th Street, where the city's Commercial Rent Tax applies. A tenant owes it only when base rent for the space is $250,000 a year or more. The tax is 6% of base rent after a 35% reduction, so 3.9% of rent, with a sliding credit between $250,000 and $300,000, and the Small Business Tax Credit wipes it out for businesses with total income of $5 million or less and base rent under $500,000.
Is it free to post on Leasemark?
Yes. Posting a space or a requirement is free. Contact details are only shared when both sides accept an intro.
Getting there
- 4 5 6 L N Q R W at 14 St-Union Sq