# 231 Jackson Street, Brooklyn

Two-family · built c. 1910 · Block 2875, Lot 65.

On Umarelli: https://umarelli.org/nyc/3028750065/231-jackson-street

More construction in East Williamsburg: https://umarelli.org/nyc/brooklyn/east-williamsburg.md

## 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.

From New York City and Jersey City public records, refreshed within a day of each release. Sources: https://umarelli.org/sources. Methodology and corrections: https://umarelli.org/methodology