411 12th Street, Brooklyn
Three-family · built c. 1886 · Block 1096, Lot 69.
Building permits
- Alteration, filed Feb 6, 2026, estimated cost $691K, described as “Interior and exterior architectural work to convert a three-family row house into a single-family residence. Obtain a new Certificate of Occupancy.”
Property taxes
- Assessment
- $184,800
- 2026–27 tax
- $7,047
- Market value (city estimate)
- $3,080,000
- Taxable value
- $35,512
- Assessed land
- $24,060
- Assessed improvements
- $160,740
Zoning
R6A: floor area ratio 2.09 built, 3.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Aug 21, 2025: $2,500,000
Open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Park Slope Historic District Extension (Historic District). 2 Landmarks Preservation Commission permits are on file.