526 Baltic Street, Brooklyn
Apartment building · 99 units · built 2001 · Block 406, Lot 18.
Building permits
- Alteration, filed Aug 28, 2026, estimated cost $171K, described as “Establishment of commercial laundromat.interior renovation includes erection of new interior partitions, dryers vent, hot water heater vent as per plans filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed May 8, 2026, estimated cost $364K, described as “Alteration for physical work in conjunction with alt-co #B00667885 including demo & installation of non-bearing partitions, fixtures, finishes & casework for proposed daycare center & day nursery center. Changes to co will be filed under…”
- Alteration, filed Jun 12, 2024, estimated cost $6K, described as “Installation of temporary needle beam as per plans. No change in use, egress or occupancy.”
- Alteration, filed May 23, 2024, estimated cost $6K, described as “Installation of temporary personnel material hoist as per plans. No change in use, egress or occupancy.”
- Alteration, filed May 16, 2024, estimated cost $4K, described as “Installation of temporary roof protection as per plans. No change in use, egress or occupancy.”
- Alteration, filed May 15, 2024, described as “Installation of temporary pipe scaffold as per plans. No change in use, egress or occupancy.”
- Alteration, filed May 2, 2024, described as “Installation of temporary sidewalk shed as per plans. No change in use, egress or occupancy.”
- Alteration, filed Dec 8, 2023, estimated cost $10K, described as “Proposed to cap and remove sprinkler system. No change to use, egress or occupancy under this application.”
- Major Renovation — Conversion, filed Feb 3, 2022, estimated cost $18.8M, 99 units added, 13 stories, described as “Conversion and twelve story vertical addition to existing one story commercial building”
Property taxes
- Assessment
- $10,570,950
- 2026–27 tax
- $120,531
- Market value (city estimate)
- $23,491,000
- Taxable value
- $968,980
- Assessed land
- $393,750
- Assessed improvements
- $10,177,200
Tax breaks
- 421-a exemption, through Jun 30, 2061, about $1,194,389 a year below the full tax.
Zoning
M1-4/R7X: floor area ratio 7.10 built, above the 5.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Nov 21, 2023: $13,900,000
Open-market sales since 2016, from the Department of Finance’s sales files.
Board and land use applications
- Gowanus Neighborhood Plan (City Planning 2018K0382): Zoning map change, Zoning text change, City map change, Urban development action area, Completed, decided Dec 6, 2021. The Gowanus Neighborhood Plan is a shared, long-term vision for a thriving neighborhood. It looks to identify strategies for an equitable, resilient and sustainable Gowanus, with more local jobs and housing. The Plan supports community…
In the news
Housing Lottery Launches for The Baltic Canal at 526 Baltic Street in Gowanus, Brooklyn, New York YIMBY, Jul 11, 2025.