Office building · Flatiron, Manhattan

120 East 23rd Street

120 East 23rd Street is a 12-floor office building in Flatiron, Manhattan, built in 1913, with about 201,000 square feet of office space according to city records.

Office space
201K SF
Floors
12
Year built
1913
Listed on Leasemark
0

No space at 120 East 23rd Street 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.

NYC tax lot records

Building facts

Building type
Office building (city class O3)
Total floor area
200,757 SF
Commercial floor area
200,757 SF
Office
200,757 SF
Height
12 floors
Year built
1913
Last major alteration
2011
Lot area
17,281 SF
Zoning district
C6-4A
Built FAR
11.62
Max commercial FAR
10
Tax lot (BBL)
1008780065
ZIP code
10010

Nearby large buildings

Source: NYC Department of City Planning, PLUTO 26v2, pulled 2026-09-26. Floor areas are the city's estimates for the whole building, not available space. Walking times are straight-line estimates.

Office space nearby in Flatiron

Looking for office space in Flatiron

Tenants and buyers with active requirements here. List a space in 120 East 23rd Street and we match you automatically.

Questions about 120 East 23rd Street

How big is 120 East 23rd Street?

120 East 23rd Street has about 201,000 square feet of floor area in total, including 201,000 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 120 East 23rd Street built?

City records list 1913 as the year built, with a major alteration recorded in 2011. The building is 12 floors tall.

What is the zoning at 120 East 23rd Street?

The lot is in the C6-4A zoning district. PLUTO lists a built floor area ratio (FAR) of 11.62 and a maximum commercial FAR of 10 for this lot.

Is there office space for lease at 120 East 23rd Street?

No space at 120 East 23rd 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.