Is 503 To 505 12th St rent stabilized?
503 To 505 12th St is a registered NYC rent-stabilized building in Park Slope, Brooklyn (11215). It has about 34 apartments, built in 1916.
Also written as 503 To 505 12th Street — or 503 To 505 12th St, Brooklyn, NY 11215.
How this building compares
With about 34 apartments it is larger than 93% of the 623 rent-stabilized buildings this site tracks in Park Slope. Its 1916 construction date sits close to the 1920 median for stabilized buildings tracked in the neighborhood. HPD lists 26 open violations here, about 0.8 per apartment — above the one for every 4 apartments median for tracked buildings in the neighborhood. Of the 265 violations on record at the address, 94 are class C — HPD's immediately hazardous grade. Tenants have filed 239 HPD complaints at the address, 25 of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Park Slope |
| ZIP | 11215 |
| Year built | 1916 |
| Apartments | 34 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3010970056 |
Owner & management
| Owner | 503-9 12 ST LLC 625 BROADWAY #11TH F · New York, NY 10012 |
| Managing agent | FREESTONE PROPERTY GROUP LLC |
Building conditions
| HPD violations | 26 open / 265 total · 18 in last 12 mo |
| HPD complaints | 6 open / 239 total |
| HPD registration last filed | January 20, 2026 |