677 4th Avenue, Brooklyn

Apartment building · 8 units · built c. 1900 · Block 643, Lot 8.

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Building permits

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

Property taxes

Assessment
$682,200
2026–27 tax
$53,167
Market value (city estimate)
$1,516,000
Taxable value
$427,422
Assessed land
$16,200
Assessed improvements
$666,000

Zoning

R8A: floor area ratio 4.47 built, 6.02 allowed by base zoning.

Flood zone

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

More construction in Sunset Park

Every lot on block 643

Umarelli: construction in New York City and Jersey City