Want · Office
Law firm relocation near Grand Central
Posted by a tenant rep broker · Legal
- Where
- Grand Central, Midtown
- Size
- 7,000 to 10,000 SF
- Budget
- to $110/SF
- Move in
- May 2027
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Office building · Grand Central, Manhattan
521 Fifth Avenue
521 Fifth Avenue is a 38-floor office building in Grand Central, Manhattan, built in 1929, with about 372,000 square feet of office space according to city records.
- Office space
- 372K SF
- Floors
- 38
- Year built
- 1929
- Listed on Leasemark
- 0
No space at 521 Fifth Avenue 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 O4)
- Total floor area
- 434,152 SF
- Commercial floor area
- 434,152 SF
- Office
- 371,539 SF
- Retail
- 38,092 SF
- Industrial and storage
- 24,521 SF
- Height
- 38 floors
- Year built
- 1929
- Last major alteration
- 2019
- Lot area
- 19,047 SF
- Zoning district
- C5-3
- Built FAR
- 22.79
- Max commercial FAR
- 15
- Tax lot (BBL)
- 1012780001
- ZIP code
- 10175
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.
Looking for office space in Grand Central
Tenants and buyers with active requirements here. List a space in 521 Fifth Avenue and we match you automatically.
Questions about 521 Fifth Avenue
How big is 521 Fifth Avenue?
521 Fifth Avenue has about 434,000 square feet of floor area in total, including 372,000 square feet of office, 38,000 square feet of retail and 25,000 square feet of industrial and storage space, according to NYC PLUTO 26v2. These are the city's estimates for the whole building, not space that is available.
When was 521 Fifth Avenue built?
City records list 1929 as the year built, with a major alteration recorded in 2019. The building is 38 floors tall.
What is the zoning at 521 Fifth Avenue?
The lot is in the C5-3 zoning district. PLUTO lists a built floor area ratio (FAR) of 22.79 and a maximum commercial FAR of 15 for this lot.
Is there office space for lease at 521 Fifth Avenue?
No space at 521 Fifth Avenue 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.
Grand Central
Getting there
- 4 5 6 7 S at Grand Central
- Metro-North