434 West 20th Street, Manhattan
Co-op · 7 units · built c. 1857 · Block 717, Lot 61.
Building permits
No building permits on file for this lot.
Property taxes
- Assessment
- $3,158,550
- 2026–27 tax
- $202,091
- Market value (city estimate)
- $7,019,000
- Taxable value
- $1,624,658
- Assessed land
- $567,000
- Assessed improvements
- $2,591,550
Zoning
R7B (part of the lot is R8A): floor area ratio 3.97 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 AE, high risk: a 1% chance of flooding each year, base flood elevation 10 ft (NAVD88).
Recent sales
- Sep 25, 2024: $1,905,000
- Dec 15, 2020: $883,000, Apt 9
- Jun 28, 2019: $2,725,000
- Jun 6, 2017: $1,835,000
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.