231 Jackson Street, Brooklyn
Two-family · built c. 1910 · Block 2875, Lot 65.
Building permits
- Major Renovation — Conversion, filed Aug 21, 2026, estimated cost $1.3M, 4 units added, 4 stories, described as “Alteration application for vertical and horizontal enlargement to existing two (2) story + cellar, proposed four (4) story + penthouse + cellar conversion from two (2) family to six (6) family.”
Property taxes
- Assessment
- $109,740
- 2026–27 tax
- $4,990
- Market value (city estimate)
- $1,829,000
- Taxable value
- $25,148
- Assessed land
- $20,880
- Assessed improvements
- $88,860
Zoning
R6B: floor area ratio 0.96 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.