5815 21st Avenue, Brooklyn
Two-family · built c. 1925 · Block 5508, Lot 4.
Building permits
No building permits on file for this lot.
Property taxes
- Assessment
- $96,960
- 2026–27 tax
- $8,088
- Market value (city estimate)
- $1,616,000
- Taxable value
- $40,759
- Assessed land
- $18,900
- Assessed improvements
- $78,060
Zoning
R5: floor area ratio 1.00 built, 1.50 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Feb 27, 2020: $925,000, 1,600 sq ft ($578 per sq ft)
Open-market sales since 2016, from the Department of Finance’s sales files.