Is 439 9th St rent stabilized?
439 9th St is a registered NYC rent-stabilized building in Park Slope, Brooklyn (11215). It has about 6 apartments, built in 1881.
Also written as 439 9th Street — or 439 9th St, Brooklyn, NY 11215.
How this building compares
With about 6 apartments it is smaller than 75% of the 623 rent-stabilized buildings this site tracks in Park Slope. It went up in 1881, 39 years before the 1920 median for stabilized buildings tracked in the neighborhood. HPD lists 45 open violations here, about 7.5 per apartment — above the one for every 4 apartments median for tracked buildings in the neighborhood. Of the 74 violations on record at the address, 16 are class C — HPD's immediately hazardous grade. Tenants have filed 92 HPD complaints at the address, none of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Park Slope |
| ZIP | 11215 |
| Year built | 1881 |
| Apartments | 6 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3010900074 |
Owner & management
| Owner | 439 9TH STREET LLC 1068 BAY RIDGE PARKWAY · Brooklyn, NY 11228 |
| Managing agent | 439 9TH STREET LLC. |
Building conditions
| HPD violations | 45 open / 74 total · 1 in last 12 mo |
| HPD complaints | 0 open / 92 total |
| HPD registration last filed | September 29, 2025 |