411 West 21st Street, Manhattan
Co-op · 5 units · built c. 1853 · Block 719, Lot 33.
Building permits
No building permits on file for this lot.
Property taxes
- Assessment
- $1,255,500
- 2026–27 tax
- $79,002
- Market value (city estimate)
- $2,790,000
- Taxable value
- $635,114
- Assessed land
- $134,550
- Assessed improvements
- $1,120,950
Zoning
R7B: floor area ratio 3.11 built, above the 3.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard. FEMA’s preliminary map: zone X, moderate risk: a 0.2% chance of flooding each year.
Recent sales
- Oct 29, 2025: $1,425,000
- Apr 27, 2020: $1,775,000, Apt 1
Open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Chelsea Historic District (Historic District). 12 Landmarks Preservation Commission permits are on file.