643 Madison Street, Brooklyn
Apartment building · 6 units · built 2015 · Block 1641, Lot 62.
Building permits
No building permits on file for this lot.
Property taxes
- Assessment
- $794,700
- 2026–27 tax
- $2,421
- Market value (city estimate)
- $1,766,000
- Taxable value
- $19,462
- Assessed land
- $42,750
- Assessed improvements
- $751,950
Tax breaks
- 421-a exemption, through Jun 30, 2032, about $47,124 a year below the full tax.
Zoning
R6B: floor area ratio 2.06 built, above the 2.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Sep 6, 2016: $4,900,000
Open-market sales since 2016, from the Department of Finance’s sales files.