# 644 Union Street, Brooklyn

Single family · built c. 1899 · Block 955, Lot 20.

On Umarelli: https://umarelli.org/nyc/3009550020/644-union-street

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

Every lot on block 955: https://umarelli.org/nyc/brooklyn/955.md

## Building permits

No building permits on file for this lot.

## Property taxes

- Assessment: $175,740
- 2026–27 tax: $3,686
- Market value (city estimate): $2,929,000
- Taxable value: $20,496
- Assessed land: $20,760
- Assessed improvements: $154,980

## Zoning

R6A: floor area ratio 1.26 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