230 Clarkson Avenue, Brooklyn
Industrial · built c. 1928 · Block 5066, Lot 23.
Building permits
- New Building — Mid-Rise, filed Sep 2, 2025, 99 units, 10 stories, described as “Proposing 10-story with cellar residential new building”
- Alteration, filed Jul 17, 2026, estimated cost $6K, described as “Installation of temporary personnel hoist as per plans. No change in use, egress or occupancy.”
- Alteration, filed Jul 16, 2026, described as “Installation of temporary sidewalk shed as per plans. No change in use, egress or occupancy.”
- Alteration, filed Apr 21, 2026, described as “Installation of temporary pipe scaffold as per plans. No change in use, egress or occupancy.”
- Alteration, filed Mar 10, 2026, estimated cost $4K, described as “Installation of temporary overhead protection as per plans. No change in use, egress or occupancy.”
- Alteration, filed Oct 31, 2025, estimated cost $160, described as “Proposed construction fence. No change to use, egress or occupancy under this application.”
- Demolition, filed Jul 15, 2025, estimated cost $140K, described as “Full demolition to a one story building”
Property taxes
- Assessment
- $792,450
- 2026–27 tax
- $72,228
- Market value (city estimate)
- $1,761,000
- Taxable value
- $665,820
- Assessed land
- $405,000
- Assessed improvements
- $387,450
Zoning
R7-1: floor area ratio 0.80 built, 3.44 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jul 10, 2025: $20,000,000
Open-market sales since 2016, from the Department of Finance’s sales files.