526 4th Avenue, Brooklyn

Apartment building · 7 units · built c. 1931 · Block 1033, Lot 43.

Building permits

New Building — Mid-Rise, filed Dec 18, 2024, 99 units, 17 stories, described as “New 17 story, mixed use commercial &multi-family residential quality housingbuilding with affordable housing andaccessory parking”
Alteration, filed Nov 12, 2025, estimated cost $5K, described as “Installation of 300PSF sidewalk shed as per plans. Sidewalk shed shall comply with chapter 33 of NYC code 2022. No change in use, occupancy or egress under this application.”
Alteration, filed Sep 11, 2025, estimated cost $160, described as “Proposed 8FT construction fence. No change to use, egress or occupancy under this application.”
Demolition, filed May 5, 2025, estimated cost $70K, described as “Full demolition to a four story building”
Demolition, filed May 5, 2025, estimated cost $5K, described as “Full demolition to a one story garage”
Alteration, filed Nov 29, 2023, estimated cost $600K, described as “Alteration application for interior renovation to existing 4 story + cellar mixed use building.”
Alteration, filed Mar 24, 2022, estimated cost $5K, described as “Installation of 115Lft new sidewalk shed at 526 4th ave, brooklyn, as indicated on plans. There will be no change in the use, egress, or occupancy under this application”

C4-4D: floor area ratio 3.27 built, 6.02 allowed by base zoning.

Current FEMA flood map: zone X, minimal flood hazard.

Open-market sales since 2016, from the Department of Finance’s sales files.

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…