423 Grove Street, Brooklyn

Two-family · built c. 1920 · Block 3320, Lot 39.

Building permits

No building permits on file for this lot.

Property taxes

Assessment
$75,600
2026–27 tax
$4,214
Market value (city estimate)
$1,260,000
Taxable value
$21,238
Assessed land
$12,300
Assessed improvements
$63,300

Zoning

R6: floor area ratio 1.35 built, 2.43 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

More construction in Wyckoff Heights

Every lot on block 3320

Umarelli: construction in New York City and Jersey City