# 6810 21st Avenue, Brooklyn

Four-family · built c. 1931 · Block 5579, Lot 40.

On Umarelli: https://umarelli.org/nyc/3055790040/6810-21-avenue

More construction in Bensonhurst: https://umarelli.org/nyc/brooklyn/bensonhurst.md

Every lot on block 5579: https://umarelli.org/nyc/brooklyn/5579.md

## Building permits

No building permits on file for this lot.

## Property taxes

- Assessment: $498,600
- 2026–27 tax: $15,889
- Market value (city estimate): $1,108,000
- Taxable value: $127,735
- Assessed land: $94,950
- Assessed improvements: $403,650

## Zoning

R5: floor area ratio 1.26 built, 1.50 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