Office building with commercial space · Upper West Side, Manhattan
423 West 55th Street
423 West 55th Street is a 12-floor office building with commercial space in Upper West Side, Manhattan, built in 1915, with about 245,000 square feet of office space according to city records.
- Office space
- 245K SF
- Floors
- 12
- Year built
- 1915
- Listed on Leasemark
- 0
No space at 423 West 55th 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 with commercial space (city class O6)
- Total floor area
- 263,438 SF
- Commercial floor area
- 263,438 SF
- Office
- 244,738 SF
- Retail
- 18,700 SF
- Height
- 12 floors
- Year built
- 1915
- Last major alteration
- 2004
- Lot area
- 24,603 SF
- Zoning district
- C6-2
- Built FAR
- 10.71
- Max commercial FAR
- 6
- Tax lot (BBL)
- 1010650012
- ZIP code
- 10019
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.
Questions about 423 West 55th Street
How big is 423 West 55th Street?
423 West 55th Street has about 263,000 square feet of floor area in total, including 245,000 square feet of office and 19,000 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 423 West 55th Street built?
City records list 1915 as the year built, with a major alteration recorded in 2004. The building is 12 floors tall.
What is the zoning at 423 West 55th Street?
The lot is in the C6-2 zoning district. PLUTO lists a built floor area ratio (FAR) of 10.71 and a maximum commercial FAR of 6 for this lot.
Is there office space for lease at 423 West 55th Street?
No space at 423 West 55th 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.
Upper West Side
Getting there
- 1 2 3 at 72 St
- B C at 81 St