577 4th Street, Brooklyn
Single family · built c. 1908 · Block 1081, Lot 55.
Building permits
No building permits on file for this lot.
Property taxes
- Assessment
- $278,280
- 2026–27 tax
- $13,804
- Market value (city estimate)
- $4,638,000
- Taxable value
- $69,565
- Assessed land
- $38,580
- Assessed improvements
- $239,700
Zoning
R7B: floor area ratio 1.68 built, 3.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jul 14, 2026: $4,957,000, 2,712 sq ft ($1,828 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). 2 Landmarks Preservation Commission permits are on file.