# 6308 21st Avenue, Brooklyn

Two-family · built c. 1915 · Block 5542, Lot 37.

On Umarelli: https://umarelli.org/nyc/3055420037/6308-21-avenue

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

Every lot on block 5542: https://umarelli.org/nyc/brooklyn/5542.md

## Building permits

- Alteration, filed Jan 8, 2021, estimated cost $140K, described as “Replace existing windows, partition walls, doors, ceiling and flooring on basement, 1ST floor and 2ND floor. No change of use, egress or occupancy.”

## Property taxes

- Assessment: $84,060
- 2026–27 tax: $8,638
- Market value (city estimate): $1,401,000
- Taxable value: $43,485
- Assessed land: $12,840
- Assessed improvements: $71,220

## Zoning

R5: floor area ratio 0.74 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