177 23rd Street, Brooklyn

Three-family · built c. 1899 · Block 645, Lot 42.

Building permits

No building permits on file for this lot.

Property taxes

Assessment
$143,940
2026–27 tax
$6,330
Market value (city estimate)
$2,399,000
Taxable value
$31,898
Assessed land
$15,180
Assessed improvements
$128,760

Zoning

M1-2D: floor area ratio 1.86 built, 2.00 allowed by base zoning.

Flood zone

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

More construction in Sunset Park

Every lot on block 645

Umarelli: construction in New York City and Jersey City