524 3rd Street, Brooklyn
Single family · built c. 1909 · Block 1080, Lot 15.
Building permits
- Alteration, filed Jul 25, 2026, estimated cost $826K, described as “Herewith filing alterations to an existing single family mixed use building. General construction work as per plans submitted. There is no change to use, egress or occupancy.”
Property taxes
- Assessment
- $354,900
- 2026–27 tax
- $16,533
- Market value (city estimate)
- $5,915,000
- Taxable value
- $83,321
- Assessed land
- $33,720
- Assessed improvements
- $321,180
Zoning
R6B: 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
- Mar 6, 2026: $3,800,000, 3,720 sq ft ($1,022 per sq ft)
Open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Park Slope Historic District (Historic District). 4 Landmarks Preservation Commission permits are on file.