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 42 open violations here, about 1.2 per apartment — above the one for every 4 apartments median for tracked buildings in the neighborhood. Of the 285 violations on record at the address, 105 are class C — HPD's immediately hazardous grade, and 28 of them are still open. HPD issued 27 new violations at the address 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 | 42 open / 285 total · 27 in last 12 mo |
| HPD complaints | 8 open / 258 total |
| HPD registration last filed | January 20, 2026 |
Full building report — $9
Frequently asked questions
Is 503 To 505 12th St rent stabilized?
503 To 505 12th 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 503 To 505 12th St?
503 To 505 12th St (BBL 3010970056) has about 34 residential apartments and was built in 1916, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized.