# 21 Crosby Avenue, Brooklyn

Single family · built c. 1930 · Block 3884, Lot 330.

On Umarelli: https://umarelli.org/nyc/3038840330/21-crosby-avenue

More construction in Cypress Hills: https://umarelli.org/nyc/brooklyn/cypress-hills.md

Every lot on block 3884: https://umarelli.org/nyc/brooklyn/3884.md

## Building permits

No building permits on file for this lot.

## Property taxes

- Assessment: $60,420
- 2026–27 tax: $5,716
- Market value (city estimate): $1,007,000
- Taxable value: $28,806
- Assessed land: $20,040
- Assessed improvements: $40,380

## Zoning

R3-1: floor area ratio 0.21 built, 0.75 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