346 1st Street, Brooklyn
Two-family · built c. 1901 · Block 970, Lot 27.
Building permits
- Alteration, filed Feb 6, 2026, estimated cost $1K, described as “Installation of temporary heavy duty sidewalk shed as per plans. No change in use, egress or occupancy. Sidewalk shed shall comply with chapter #33 of 2022 the NYC building code. Live load 300PSF.”
- Alteration, filed Jan 14, 2026, estimated cost $85K, described as “Installation of a vrf heat pump system complete with roof mounted condensing unit and fully ducted indoor air handling units and controls, mechanical ventilation and exhaust systems for kitchens, bathrooms, and laundry.”
- Alteration, filed Dec 17, 2025, estimated cost $498K, described as “Propose vertical extension to an existing 2-story + basement by adding a 3RD story and extending horizontally into the rear yard.”
- Alteration, filed Aug 30, 2025, estimated cost $375K, described as “Propose to vertically enlarge existing 3-story building by adding a new 4TH floor and extending horizontally into the rear yard. Maintain residential use (u.g. 2A) request review under 2022 building code. No change to use, occupancy or…”
Property taxes
- Assessment
- $256,260
- 2026–27 tax
- $8,190
- Market value (city estimate)
- $4,271,000
- Taxable value
- $41,275
- Assessed land
- $34,740
- Assessed improvements
- $221,520
Zoning
R6B: floor area ratio 1.48 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Aug 25, 2025: $2,900,000
Open-market sales since 2016, from the Department of Finance’s sales files.