4117 18th Avenue, Brooklyn
Two-family · built c. 1915 · Block 5416, Lot 28.
Building permits
- Alteration, filed Aug 24, 2025, estimated cost $17K, described as “Installation of Solar panels on existing roof structure, No change in use, egress or occupancy.”
- Alteration, filed Jan 29, 2025, estimated cost $17K, described as “Installation of heavy-duty sidewalk shed for exterior repairs as per plans. No change in use occupancy or egress under this application. Sidewalk shed shall comply with chapter 33 of the 2022 NYC building code.”
- Major Renovation — Enlargement, filed Apr 28, 2022, estimated cost $1.2M, 3 units added, 4 stories, described as “Proposed horizontal and vertical enlargement on a 2 story building. Obtain new c of o.”
Property taxes
- Assessment
- $82,140
- 2026–27 tax
- $6,001
- Market value (city estimate)
- $1,369,000
- Taxable value
- $38,935
- Assessed land
- $31,320
- Assessed improvements
- $50,820
Tax breaks
- Solar abatement, through Jun 30, 2030, a $1,725 credit this tax year.
Zoning
R6A: floor area ratio 0.91 built, 3.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- May 17, 2021: $1,150,000
Open-market sales since 2016, from the Department of Finance’s sales files.