5909 20th Avenue, Brooklyn
Two-family · built c. 1925 · Block 5514, Lot 6.
Building permits
- Alteration, filed Dec 5, 2023, estimated cost $1.1M, described as “Horizontal and vertical enlargement to existing 2 1/2 story and cellar 2-family residence, covert to 3 story and cellar 1-family residence, to remediate stop work order #080923C23-02325. partitions as per plans.”
- Alteration, filed Aug 4, 2023, estimated cost $5K, described as “Proposed installation of heavy duty sidewalk shed as per plans. Live load 300 lbs per square feet. Sidewalk shed shall comply with chapter #33 of the NYC building code. No change in use, occupancy, or egress under this application.”
- Alteration, filed Jul 20, 2023, estimated cost $3K, described as “8' construction fence”
Property taxes
- Assessment
- $97,620
- 2026–27 tax
- $10,096
- Market value (city estimate)
- $1,627,000
- Taxable value
- $50,878
- Assessed land
- $22,440
- Assessed improvements
- $75,180
Zoning
R5: floor area ratio 0.67 built, 1.50 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Aug 25, 2022: $999,000
Open-market sales since 2016, from the Department of Finance’s sales files.