743 Union Street, Brooklyn

Condominium · 8 units · built c. 1931 · Block 953, Lot 7501.

Building permits

No building permits on file for this lot.

Property taxes

Assessment
$1,223,098
2026–27 tax
$30,643
Market value (city estimate)
$2,717,998
Taxable value
$264,698
Assessed land
$51,298
Assessed improvements
$1,171,800
Condo units with their own tax lots
8

Tax breaks

Zoning

R6A: floor area ratio 2.14 built, 3.00 allowed by base zoning.

Flood zone

Current FEMA flood map: zone X, minimal flood hazard.

Recent sales

Open-market sales since 2016, from the Department of Finance’s sales files.

More construction in Park Slope

Every lot on block 953

Umarelli: construction in New York City and Jersey City