409 West 21st Street, Manhattan
Co-op · 5 units · built c. 1853 · Block 719, Lot 34.
Building permits
No building permits on file for this lot.
Property taxes
- Assessment
- $1,156,500
- 2026–27 tax
- $72,768
- Market value (city estimate)
- $2,570,000
- Taxable value
- $585,000
- Assessed land
- $486,000
- Assessed improvements
- $670,500
Zoning
R7B: floor area ratio 2.87 built, 3.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Dec 2, 2025: $1,520,000
- Jul 31, 2017: $1,587,500
- May 31, 2016: $1,450,000
Open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Chelsea Historic District (Historic District). 7 Landmarks Preservation Commission permits are on file.