Want · Office
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
Near subwayHigh ceilings
Owners: got a fit?I have a fit
Office building · Flatiron, Manhattan
354 Park Avenue South
354 Park Avenue South is a 21-floor office building in Flatiron, Manhattan, built in 1913, with about 439,000 square feet of office space according to city records.
- Office space
- 439K SF
- Floors
- 21
- Year built
- 1913
- Listed on Leasemark
- 0
No space at 354 Park Avenue South 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
- 450,727 SF
- Commercial floor area
- 450,727 SF
- Office
- 439,002 SF
- Retail
- 11,725 SF
- Height
- 21 floors
- Year built
- 1913
- Last major alteration
- 2010
- Lot area
- 19,750 SF
- Zoning district
- C5-3
- Built FAR
- 22.82
- Max commercial FAR
- 15
- Tax lot (BBL)
- 1008550024
- ZIP code
- 10010
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.
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Tenants and buyers with active requirements here. List a space in 354 Park Avenue South and we match you automatically.
Want · Office
Startup seeking furnished sublease
Posted by the tenant · Software
- Where
- Flatiron, Midtown South +1
- Size
- 6,000 to 11,000 SF
- Budget
- to $60/SF
- Move in
- Nov 2026
Furnished
Owners: got a fit?I have a fit
Questions about 354 Park Avenue South
How big is 354 Park Avenue South?
354 Park Avenue South has about 451,000 square feet of floor area in total, including 439,000 square feet of office and 12,000 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 354 Park Avenue South built?
City records list 1913 as the year built, with a major alteration recorded in 2010. The building is 21 floors tall.
What is the zoning at 354 Park Avenue South?
The lot is in the C5-3 zoning district. PLUTO lists a built floor area ratio (FAR) of 22.82 and a maximum commercial FAR of 15 for this lot.
Is there office space for lease at 354 Park Avenue South?
No space at 354 Park Avenue South 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.
Flatiron
Getting there
- N R W at 23 St
- 4 5 6 L N Q R W at 14 St-Union Sq
- F M at 23 St