6811 20th Avenue, Brooklyn
Two-family with store · built c. 1931 · Block 5579, Lot 6.
Building permits
- Alteration, filed Mar 31, 2025, estimated cost $7K, described as “To file PL plumbing work in conjunction with DOB Now Build application job#B01199569. No change in use, egress or occupancy under this application.”
- Alteration, filed Mar 27, 2025, estimated cost $22K, described as “Renovation of an existing business store U.G. 6 at the 1st floor. No change in use, egress or occupancy under this application.”
- Alteration, filed Mar 27, 2025, estimated cost $5K, described as “To file MS mechanical work in conjunction with DOB Now Build application job#B01199569. No change in use, egress or occupancy under this application.”
Property taxes
- Assessment
- $86,940
- 2026–27 tax
- $11,957
- Market value (city estimate)
- $1,449,000
- Taxable value
- $60,259
- Assessed land
- $19,800
- Assessed improvements
- $67,140
Zoning
R5: floor area ratio 1.93 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.