6808 21st Avenue, Brooklyn
Four-family · built c. 1931 · Block 5579, Lot 39.
Building permits
- Alteration, filed Jun 30, 2021, estimated cost $125K, described as “Renovation of existing cellar, first and second floor with general construction: new partitions, doors, flooring and cosmetic work; no change in use, egress or occupancy under this application”
- Alteration, filed Jun 30, 2021, estimated cost $54K, described as “Renovation of existing cellar, first, second and third floor with plumbing work as per plan : relocate kitchen and bathroom fixtures;new boilers and hot water heaters on cellar. No change in use, egress or occupancy under this application.”
Property taxes
- Assessment
- $349,650
- 2026–27 tax
- $18,878
- Market value (city estimate)
- $777,000
- Taxable value
- $151,767
- Assessed land
- $94,950
- Assessed improvements
- $254,700
Zoning
R5: floor area ratio 1.26 built, 1.50 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jun 4, 2021: $1,720,000
Open-market sales since 2016, from the Department of Finance’s sales files.