660 4th Avenue, Brooklyn
Condominium · 23 units · built c. 1920 · Block 636, Lot 7501.
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Building permits
Permit records are unavailable right now; the map lists them once the city responds.
Property taxes
- Assessment
- $739,348
- 2026–27 tax
- $76,992
- Market value (city estimate)
- $1,642,995
- Taxable value
- $706,447
- Assessed land
- $26,998
- Assessed improvements
- $712,350
- Condo units with their own tax lots
- 23
Tax breaks
- Co-op and condo abatement, with no end date, a $11,056 credit this tax year.
Zoning
M1-2D: floor area ratio 2.15 built, above the 2.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Aug 13, 2026: $253,000, Apt 1F
- Oct 10, 2025: $469,000, Apt 4R
- Aug 14, 2025: $375,000, Apt 3R
- Aug 12, 2024: $291,000, Apt 1R
- Jul 22, 2024: $425,000, Apt 2F
- Oct 13, 2023: $385,000, Apt 4F
- Jan 9, 2023: $468,000, Apt 2L
- Sep 23, 2021: $375,000, Apt 3F
- Feb 17, 2021: $387,500, Apt 4R
- Jul 15, 2020: $399,000, Apt 3F
The 10 most recent of 11 open-market sales since 2016, from the Department of Finance’s sales files.