263 Classon Avenue, Brooklyn
Condominium · 94 units · built c. 1920 · Block 1924, Lot 7501.
Building permits
- Alteration, filed Jun 15, 2026, estimated cost $15K, described as “Renovation of boiler rooms and installation of new boiler exhaust flues”
- Alteration, filed Nov 19, 2024, estimated cost $5K, described as “Application filed to remove interior closet and relocate apt. Entrance door to allow large furniture to enter apt. And address VIOLATION#39125583N”
- Alteration, filed Oct 3, 2022, estimated cost $2K, described as “Adding balcony at fifth floor as per plans. No change to use, egress or occupancy.”
Property taxes
- Assessment
- $8,144,110
- 2026–27 tax
- $926,088
- Market value (city estimate)
- $18,098,009
- Taxable value
- $7,647,253
- Assessed land
- $225,004
- Assessed improvements
- $7,919,106
- Condo units with their own tax lots
- 94
Tax breaks
- Co-op and condo abatement, with no end date, a $25,328 credit this tax year.
Zoning
R7A: floor area ratio 2.91 built, 4.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jul 9, 2026: $980,000, Apt 3G
- Jun 9, 2025: $999,000, Apt 3B
- Jul 3, 2024: $1,272,813, Apt 2F
- Feb 1, 2023: $365,000, Apt 4G
- Feb 23, 2022: $650,000, Apt 4I
- Feb 17, 2022: $1,078,500, Apt 1E
- May 13, 2021: $365,000, Apt 3H
- Dec 11, 2020: $900,000, Apt 1H
- Oct 29, 2019: $485,000, Apt 3F
- Jan 5, 2017: $835,000, Unit BA
Open-market sales since 2016, from the Department of Finance’s sales files.