# 5710 21st Avenue, Brooklyn

Single family · built c. 1925 · Block 5500, Lot 43.

On Umarelli: https://umarelli.org/nyc/3055000043/5710-21-avenue

More construction in Borough Park: https://umarelli.org/nyc/brooklyn/borough-park.md

Every lot on block 5500: https://umarelli.org/nyc/brooklyn/5500.md

## Building permits

No building permits on file for this lot.

## Property taxes

- Assessment: $101,700
- 2026–27 tax: $7,473
- Market value (city estimate): $1,695,000
- Taxable value: $37,662
- Assessed land: $21,300
- Assessed improvements: $80,400

## Zoning

R5: floor area ratio 0.50 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