307 West 20th Street, Manhattan
Co-op · 12 units · built c. 1850 · Block 744, Lot 32.
Building permits
- Alteration, filed May 13, 2026, estimated cost $44K, described as “Interior renovation of apartment 3R, general finishes, painting, flooring, sanding and construction work. All as per plans and applications. No change in use, egress or occupancy.”
Property taxes
- Assessment
- $1,811,700
- 2026–27 tax
- $185,550
- Market value (city estimate)
- $4,026,000
- Taxable value
- $1,716,280
- Assessed land
- $215,550
- Assessed improvements
- $1,596,150
Tax breaks
- Co-op and condo abatement, with no end date, a $27,938 credit this tax year.
Zoning
R7B: floor area ratio 1.33 built, 3.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jul 15, 2026: $529,000
- May 21, 2025: $525,000
- Jan 22, 2025: $495,000
- Oct 3, 2024: $707,500
- Aug 2, 2023: $475,000
- Jan 5, 2023: $500,000
- Nov 8, 2022: $625,000
- Aug 2, 2021: $1,180,000
- Dec 30, 2020: $532,500, Apt 3F
- May 2, 2019: $585,000
The 10 most recent of 16 open-market sales since 2016, from the Department of Finance’s sales files.