# 170 Grafton Street, Brooklyn

Two-family · built c. 1930 · Block 3551, Lot 131.

On Umarelli: https://umarelli.org/nyc/3035510131/170-grafton-street

More construction in Brownsville: https://umarelli.org/nyc/brooklyn/brownsville.md

## Building permits

- Major Renovation — Enlargement, filed Nov 17, 2025, estimated cost $490K, 8 units added, 3 stories, described as “Combing tax lot 21 & 131 into 1 single zoning lot, to remain 2 separate tax lots; interior renovation to increase number of dwelling units from 2 to 10 units, to an existing 3 story residential building.”

## Property taxes

- Assessment: $49,260
- 2026–27 tax: $2,883
- Market value (city estimate): $821,000
- Taxable value: $14,530
- Assessed land: $20,220
- Assessed improvements: $29,040

## Zoning

R6: floor area ratio 1.13 built, 2.43 allowed by base zoning.

## Recent sales

- Jan 27, 2026: $840,000, 2,272 sq ft ($370 per sq ft)
- Sep 18, 2025: $610,000
- Jun 30, 2023: $754,300

Open-market sales since 2016, from the Department of Finance’s sales files.

## 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