454 West 20th Street, Manhattan
Co-op · 4 units · built c. 1853 · Block 717, Lot 71.
Building permits
No building permits on file for this lot.
Property taxes
- Assessment
- $1,467,000
- 2026–27 tax
- $60,739
- Market value (city estimate)
- $3,260,000
- Taxable value
- $488,293
- Assessed land
- $196,200
- Assessed improvements
- $1,270,800
Zoning
R7B: floor area ratio 2.29 built, 3.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard. FEMA’s preliminary map: zone AE, high risk: a 1% chance of flooding each year, base flood elevation 10 ft (NAVD88).
Landmarks
Part of Chelsea Historic District (Historic District). 8 Landmarks Preservation Commission permits are on file.