706 Union Street, Brooklyn

Condominium · 4 units · built c. 1920 · Block 956, Lot 7502.

Building permits

No building permits on file for this lot.

Property taxes

Assessment
$1,641,149
2026–27 tax
$29,674
Market value (city estimate)
$3,646,998
Taxable value
$238,554
Assessed land
$74,249
Assessed improvements
$1,566,900
Condo units with their own tax lots
4

Zoning

R6A: floor area ratio 2.70 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 956

Umarelli: construction in New York City and Jersey City