511 Williams Avenue, Brooklyn
Four-family · built c. 1930 · Block 3819, Lot 10.
Building permits
- Alteration, filed Nov 21, 2019, estimated cost $4K, described as “Remove & replae gas pipe cellar to 1ST floor apt.#1R, and need to gas test . No change in use, egress or occupancy under this application.”
Property taxes
- Assessment
- $204,750
- 2026–27 tax
- $8,117
- Market value (city estimate)
- $455,000
- Taxable value
- $65,255
- Assessed land
- $13,950
- Assessed improvements
- $190,800
Zoning
R6: floor area ratio 1.31 built, 2.43 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.