Is 525 4th St rent stabilized?
525 4th St is a registered NYC rent-stabilized building in Park Slope, Brooklyn (11215). It has about 16 apartments, built in 1920.
Also written as 525 4th Street — or 525 4th St, Brooklyn, NY 11215.
How this building compares
With about 16 apartments it is larger than 80% of the 623 rent-stabilized buildings this site tracks in Park Slope. HPD lists 1 open violation here, about one for every 16 apartments — below the one for every 4 apartments median for tracked buildings in the neighborhood. Of the 4 violations on record at the address, 2 are class C — HPD's immediately hazardous grade, and 1 of them is still open. Tenants have filed 3 HPD complaints at the address, none of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Park Slope |
| ZIP | 11215 |
| Year built | 1920 |
| Apartments | 16 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3010810001 |
Owner & management
| Owner | DILIGENT PROPERTIES ASSOCIATES LLC PO Box 965 · Remsenburg, NY 11960 |
| Managing agent | DILIGENT PROPERTIES ASSOCIATES LLC |
Building conditions
| HPD violations | 1 open / 4 total |
| HPD complaints | 0 open / 3 total |
| HPD registration last filed | September 30, 2025 |
Full building report — $9
Frequently asked questions
Is 525 4th St rent stabilized?
525 4th St in Park Slope, Brooklyn is registered as rent stabilized in the New York State DHCR 2024 rent-stabilized building files, where its stabilization code is MULTIPLE DWELLING A. Registration is recorded for the building, not for each apartment in it, so an individual unit here can still have been deregulated — ask the landlord or DHCR for that apartment's rent history before relying on it.
How many apartments are at 525 4th St?
525 4th St (BBL 3010810001) has about 16 residential apartments and was built in 1920, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized.