# 321 4th Avenue, Brooklyn

Apartment building · 6 units · built c. 1920 · Block 974, Lot 1.

Some of the city’s records for this lot were still loading when this page was made; it refreshes within minutes.

On Umarelli: https://umarelli.org/nyc/3009740001/321-4-avenue

More construction in Park Slope: https://umarelli.org/nyc/brooklyn/park-slope.md

Every lot on block 974: https://umarelli.org/nyc/brooklyn/974.md

## Building permits

Permit records are unavailable right now; the map lists them once the city responds.

## Property taxes

- Assessment: $1,677,150
- 2026–27 tax: $19,526
- Assessed land: $16,200
- Assessed improvements: $1,660,950

## Zoning

C4-4D: floor area ratio 4.09 built, 6.02 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