6209 20th Avenue, Brooklyn
Two-family with store · built c. 1920 · Block 5535, Lot 7.
Building permits
- Alteration, filed Oct 8, 2026, estimated cost $65K, described as “Interior renovation of existing apartment on 2nd floor and replaced existing boiler & H.W.H at Cellar”
Property taxes
- Assessment
- $121,740
- 2026–27 tax
- $9,525
- Market value (city estimate)
- $2,029,000
- Taxable value
- $48,004
- Assessed land
- $15,300
- Assessed improvements
- $106,440
Zoning
R5: floor area ratio 2.08 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.