5801 11th Avenue, Brooklyn
Three-family · built c. 1925 · Block 5703, Lot 4.
Building permits
- Major Renovation — Enlargement, filed Nov 4, 2026, estimated cost $867K, 1 unit added, 3 stories, described as “Application filed herewith to propose a 4 story, 4 family building.”
- Alteration, filed Sep 16, 2026, estimated cost $265K, described as “Herewith filing for interior renovation of cellar, first, and second floors, with facade repair to the existing 2 story building. No change in use, egress, or occupancy”
Property taxes
- Assessment
- $117,120
- 2026–27 tax
- $11,423
- Market value (city estimate)
- $1,952,000
- Taxable value
- $57,569
- Assessed land
- $26,040
- Assessed improvements
- $91,080
Zoning
R5: floor area ratio 1.30 built, 1.50 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Aug 17, 2026: $2,750,000, 2,672 sq ft ($1,029 per sq ft)
Open-market sales since 2016, from the Department of Finance’s sales files.