5809 20th Avenue, Brooklyn
Four-family · built c. 1931 · Block 5507, Lot 7.
Building permits
No building permits on file for this lot.
Property taxes
- Assessment
- $639,450
- 2026–27 tax
- $11,338
- Market value (city estimate)
- $1,421,000
- Taxable value
- $89,762
- Assessed land
- $92,700
- Assessed improvements
- $546,750
Zoning
R5: floor area ratio 1.25 built, 1.50 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.