577 6th Street, Brooklyn
Two-family · built c. 1911 · Block 1085, Lot 66.
Building permits
- Alteration, filed Apr 27, 2023, estimated cost $6K, described as “Alt.2 to add new powder room on the 1 floor of a duplex apartment. The scope of work includes new non-load bearing partitions, new door, new lavatory, toilet and new mechanical bathroom exhaust. No change to use, egress or occupancy. No…”
- Alteration, filed Apr 27, 2023, estimated cost $5K, described as “Alt.2 to add new powder room on the 1 floor of a duplex apartment. The scope of work includes new non-load bearing partitions, new door, new lavatory, toilet and new mechanical bathroom exhaust. No change to use, egress or occupancy. No…”
Property taxes
- Assessment
- $342,420
- 2026–27 tax
- $16,592
- Market value (city estimate)
- $5,707,000
- Taxable value
- $82,805
- Assessed land
- $47,580
- Assessed improvements
- $294,840
Zoning
R7B: floor area ratio 2.37 built, 3.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Landmarks
Part of Park Slope Historic District (Historic District). 4 Landmarks Preservation Commission permits are on file.