231 3rd Avenue, Brooklyn

Vacant land · Block 434, Lot 1.

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Building permits

Permit records are unavailable right now; the map lists them once the city responds.

Property taxes

Assessment
$189,450
2026–27 tax
$20,552
Market value (city estimate)
$421,000
Taxable value
$189,450
Assessed land
$189,450

Zoning

M1-4/R7A: floor area ratio 0.00 built, 4.00 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.

Board and land use applications

In the news

Earthwork Underway At 601 Union Street in Gowanus, Brooklyn, New York YIMBY, Jul 28, 2026.

More construction in Gowanus

Umarelli: construction in New York City and Jersey City