5721 21st Avenue, Brooklyn
Two-family · built c. 1920 · Block 5501, Lot 3.
Building permits
No building permits on file for this lot.
Property taxes
- Assessment
- $112,620
- 2026–27 tax
- $8,948
- Market value (city estimate)
- $1,877,000
- Taxable value
- $45,095
- Assessed land
- $19,860
- Assessed improvements
- $92,760
Zoning
R5: floor area ratio 0.73 built, 1.50 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.