174 Martense Street, Brooklyn
Two-family · built c. 1915 · Block 5090, Lot 41.
Building permits
- Alteration, filed Feb 2, 2026, estimated cost $5K, described as “Application filed herewith for installation of a temporary construction fence. No change in occupancy or egress”
- Major Renovation — Enlargement, filed Sep 24, 2024, estimated cost $2.2M, 10 units added, 4 stories, described as “Proposed alteration type 1 to existing 2 story + cellar building. Vertical and horizontal enlargement. Proposed 4 story + cellar + penthouse residential use building.”
Property taxes
- Assessment
- $65,160
- 2026–27 tax
- $7,763
- Market value (city estimate)
- $1,086,000
- Taxable value
- $39,124
- Assessed land
- $21,660
- Assessed improvements
- $43,500
Zoning
R7-1: floor area ratio 0.97 built, 3.44 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Sep 11, 2024: $1,250,000
- Sep 21, 2018: $600,000
Open-market sales since 2016, from the Department of Finance’s sales files.
In the news
Permits Filed for 174 Martense Street in Flatbush, Brooklyn, New York YIMBY, Sep 26, 2024.