421 1st Street, Brooklyn
Two-family · built c. 1901 · Block 966, Lot 65.
Building permits
- Alteration, filed Oct 25, 2024, estimated cost $91K, described as “Renovate existing Apt #1 at basement level, new interior non load bearing partitions&finishes, enlarged masonry opening at rear wall, enlarged door&window, new bluestone patio at rear yard, installation of new a/c system. Pl to be filed as…”
Property taxes
- Assessment
- $281,100
- 2026–27 tax
- $10,824
- Market value (city estimate)
- $4,685,000
- Taxable value
- $53,741
- Assessed land
- $43,740
- Assessed improvements
- $237,360
Zoning
R6B: floor area ratio 1.60 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.