859 Carroll Street, Brooklyn
Two-family · built c. 1892 · Block 1068, Lot 48.
Building permits
- Alteration, filed Nov 25, 2025, estimated cost $361K, described as “Interior Renovation of an existing 2 Family building. No change of use, egress or occupancy under this application.”
- Alteration, filed Aug 14, 2024, estimated cost $20K, described as “Openings in masonry walls for new windows. New rear deck and stair. No change of use, egress or occupancy under this application.”
- Alteration, filed Jun 18, 2024, estimated cost $163K, described as “Renovation of the the 1st floor of an existing 2 family building. No change of use, egress or occupancy under this application.”
Property taxes
- Assessment
- $359,700
- 2026–27 tax
- $18,298
- Market value (city estimate)
- $5,995,000
- Taxable value
- $92,212
- Assessed land
- $48,540
- Assessed improvements
- $311,160
Zoning
R7B: floor area ratio 2.33 built, 3.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jun 9, 2022: $4,500,000
Open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Park Slope Historic District (Historic District). 5 Landmarks Preservation Commission permits are on file.