397 3rd Street, Brooklyn

Two-family · built c. 1899 · Block 975, Lot 59.

Building permits

Property taxes

Assessment
$269,640
2026–27 tax
$10,631
Market value (city estimate)
$4,494,000
Taxable value
$53,573
Assessed land
$45,300
Assessed improvements
$224,340

Zoning

R6B: floor area ratio 1.78 built, 2.00 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 975

Umarelli: construction in New York City and Jersey City