398 Montgomery Street, Brooklyn
Commercial · built c. 1925 · Block 1305, Lot 38.
Building permits
- Major Renovation — Enlargement, filed Jul 10, 2026, estimated cost $516K, 2 units added, 3 stories, described as “Enlargement on existing 1 story commercial store with cellar to 1 story commercial store and 2 - family dwelling unit as per plan”
- Alteration, filed Apr 25, 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 Apr 3, 2026, estimated cost $76K, described as “An existing 2 story commercial building with interior renovation at a store front.no change in use, egress or occupancy.”
- Alteration, filed Dec 18, 2025, estimated cost $1K, described as “Installation of temporary construction fence for renovation work filed under alt-2 job # B01336784-I1”
Property taxes
- Assessment
- $118,800
- 2026–27 tax
- $11,474
- Market value (city estimate)
- $264,000
- Taxable value
- $105,770
- Assessed land
- $17,100
- Assessed improvements
- $101,700
Zoning
R7-1: floor area ratio 1.00 built, 3.44 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Dec 18, 2025: $500,000, 958 sq ft ($522 per sq ft)
Open-market sales since 2016, from the Department of Finance’s sales files.