257 Clarkson Avenue, Brooklyn
Apartment building · 8 units · built c. 1910 · Block 5057, Lot 72.
Building permits
- Alteration, filed Jul 27, 2022, estimated cost $5K, described as “Proposed installation of heavy duty sidewalk shed as per plans. Live load 300 lbs per square feet. Sidewalk shed shall comply with chapter #33 of the NYC building code. No change in use, occupancy, or egress under this application.”
- Alteration, filed Oct 12, 2021, estimated cost $1K, described as “Temporary fence installation”
- Major Renovation — Enlargement, filed Aug 19, 2021, estimated cost $352K, 6 units added, 4 stories, described as “Proposed vertical and horizontal extension 8 family residence, on existing 3 story building with cellar and penthouse.”
Property taxes
- Assessment
- $628,200
- 2026–27 tax
- $25,651
- Market value (city estimate)
- $1,396,000
- Taxable value
- $206,217
- Assessed land
- $156,150
- Assessed improvements
- $472,050
Zoning
R6: floor area ratio 2.38 built, 2.43 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Sep 20, 2021: $875,000
Open-market sales since 2016, from the Department of Finance’s sales files.