Is 121 Parkside Ave rent stabilized?
121 Parkside Ave is a registered NYC rent-stabilized building in Flatbush, Brooklyn (11226). It has about 23 apartments, built in 1921.
Also written as 121 Parkside Avenue — or 121 Parkside Ave, Brooklyn, NY 11226.
How this building compares
With about 23 apartments it is smaller than 62% of the 564 rent-stabilized buildings this site tracks in Flatbush. Its 1921 construction date sits close to the 1931 median for stabilized buildings tracked in the neighborhood. HPD lists 22 open violations here, about 1.0 per apartment — close to the 0.9 per apartment median for tracked buildings in the neighborhood. Of the 273 violations on record at the address, 68 are class C — HPD's immediately hazardous grade, and 4 of them are still open. Tenants have filed 256 HPD complaints at the address, 2 of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Flatbush |
| ZIP | 11226 |
| Year built | 1921 |
| Apartments | 23 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3050520011 |
Owner & management
| Owner | M & M PLAZA ASSOCIATES, LLC 8214 3RD AVENUE · BROOKLYN, NY 11209 |
| Managing agent | MERIDIAN PROPERTIES LLC |
Building conditions
| HPD violations | 22 open / 273 total |
| HPD complaints | 0 open / 256 total |
| HPD registration last filed | August 26, 2025 |
Full building report — $9
Frequently asked questions
Is 121 Parkside Ave rent stabilized?
121 Parkside Ave in Flatbush, 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 121 Parkside Ave?
121 Parkside Ave (BBL 3050520011) has about 23 residential apartments and was built in 1921, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized.