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 with commercial space · Midtown South, Manhattan
434 Park Avenue South
434 Park Avenue South is a 16-floor office building with commercial space in Midtown South, Manhattan, built in 1913, with about 136,000 square feet of office space according to city records.
- Office space
- 136K SF
- Floors
- 16
- Year built
- 1913
- Listed on Leasemark
- 0
No space at 434 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 with commercial space (city class O6)
- Total floor area
- 145,437 SF
- Commercial floor area
- 145,437 SF
- Office
- 136,437 SF
- Retail
- 9,000 SF
- Height
- 16 floors
- Year built
- 1913
- Lot area
- 9,350 SF
- Zoning district
- C6-4A
- Built FAR
- 15.55
- Max commercial FAR
- 10
- Tax lot (BBL)
- 1008590048
- ZIP code
- 10016
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 Midtown South
Looking for office space in Midtown South
Tenants and buyers with active requirements here. List a space in 434 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 434 Park Avenue South
How big is 434 Park Avenue South?
434 Park Avenue South has about 145,000 square feet of floor area in total, including 136,000 square feet of office and 9,000 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 434 Park Avenue South built?
City records list 1913 as the year built. The building is 16 floors tall.
What is the zoning at 434 Park Avenue South?
The lot is in the C6-4A zoning district. PLUTO lists a built floor area ratio (FAR) of 15.55 and a maximum commercial FAR of 10 for this lot.
Is there office space for lease at 434 Park Avenue South?
No space at 434 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.
Midtown South
Getting there
- N R W at 28 St
- 6 at 28 St
- F M at 23 St