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. Its 1920 construction date sits close to the 1920 median for stabilized buildings tracked in the neighborhood. 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. 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 |