421 3rd Street, Brooklyn
Co-op · 4 units · built c. 1920 · Block 975, Lot 47.
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Building permits
No building permits on file for this lot.
Property taxes
- Assessment
- $1,112,850
- 2026–27 tax
- $18,985
- Assessed land
- $11,250
- Assessed improvements
- $1,101,600
Zoning
R6B: floor area ratio 2.61 built, above the 2.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.