646 9th Avenue, Manhattan
Co-op · 15 units · built c. 1900 · Block 1036, Lot 3.
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Building permits
Permit records are unavailable right now; the map lists them once the city responds.
Property taxes
- Assessment
- $868,950
- 2026–27 tax
- $19,111
- Market value (city estimate)
- $1,931,000
- Taxable value
- $150,863
- Assessed land
- $77,850
- Assessed improvements
- $791,100
Tax breaks
- J-51 exemption, through Jun 30, 2037, about $87,683 a year below the full tax.
Zoning
R8: floor area ratio 3.64 built, 6.02 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jul 14, 2026: $500,000
- May 21, 2026: $251,133
- Oct 3, 2023: $435,000
- Jan 13, 2023: $785,000
- Apr 22, 2020: $405,000, Apt 3RS
- Sep 18, 2018: $590,000
- Sep 26, 2017: $201,000
- May 13, 2016: $367,500
Open-market sales since 2016, from the Department of Finance’s sales files.