# 431 Winthrop Street, Brooklyn

Single family · built 1945 · Block 4820, Lot 47.

On Umarelli: https://umarelli.org/nyc/3048200047/431-winthrop-street

More construction in Flatbush: https://umarelli.org/nyc/brooklyn/flatbush.md

Every lot on block 4820: https://umarelli.org/nyc/brooklyn/4820.md

## Building permits

No building permits on file for this lot.

## Property taxes

- Assessment: $53,520
- 2026–27 tax: $6,330
- Market value (city estimate): $892,000
- Taxable value: $31,898
- Assessed land: $18,360
- Assessed improvements: $35,160

## Zoning

R6: floor area ratio 0.72 built, 2.43 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