# 231 20th Street, Brooklyn

Mixed use · 6 units · built c. 1933 · Block 637, Lot 52.

On Umarelli: https://umarelli.org/nyc/3006370052/231-20-street

More construction in Sunset Park: https://umarelli.org/nyc/brooklyn/sunset-park.md

Every lot on block 637: https://umarelli.org/nyc/brooklyn/637.md

## Building permits

- Alteration, filed Oct 26, 2020, described as “Installation of pipe scaffolding”
- Alteration, filed Sep 10, 2020, estimated cost $71K, described as “Installation of new sprinkler system.”

## Property taxes

- Assessment: $645,750
- 2026–27 tax: $50,639
- Market value (city estimate): $1,435,000
- Taxable value: $407,096
- Assessed land: $125,100
- Assessed improvements: $520,650

## Zoning

R6A: floor area ratio 2.79 built, 3.00 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