6812 20th Avenue, Brooklyn
Single family with store · built c. 1931 · Block 5578, Lot 42.
Building permits
- Alteration, filed Jun 4, 2024, estimated cost $150K, described as “Architectural modifications to commercial space on cellar & ground floor. Alt 1# 1320918192 to be withdrawn. Restore cellar to storage use as per Final CO. Conversion of ground floor UG 6 retail space to UG 6 Office space as per AC…”
Property taxes
- Assessment
- $90,480
- 2026–27 tax
- $10,213
- Market value (city estimate)
- $1,508,000
- Taxable value
- $51,470
- Assessed land
- $14,100
- Assessed improvements
- $76,380
Zoning
R5: floor area ratio 1.64 built, above the 1.50 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.