345 West 21st Street, Manhattan
Co-op · 20 units · built c. 1920 · Block 745, Lot 12.
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Building permits
Permit records are unavailable right now; the map lists them once the city responds.
Property taxes
- Assessment
- $1,562,400
- 2026–27 tax
- $155,733
- Market value (city estimate)
- $3,472,000
- Taxable value
- $1,408,880
- Assessed land
- $82,350
- Assessed improvements
- $1,480,050
Tax breaks
- Co-op and condo abatement, with no end date, a $19,707 credit this tax year.
Zoning
R7B: floor area ratio 3.94 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.
Recent sales
- Jul 6, 2026: $570,000
- Apr 17, 2025: $550,000
- Feb 19, 2025: $625,000
- Aug 22, 2024: $555,000
- Aug 20, 2024: $640,000
- Dec 4, 2023: $538,000
- Jun 5, 2023: $550,000
- May 4, 2023: $545,000
- Apr 6, 2023: $525,000
- Jan 31, 2022: $520,000
The 10 most recent of 17 open-market sales since 2016, from the Department of Finance’s sales files.