Is 550 E 21st St rent stabilized?
550 E 21st St is a registered NYC rent-stabilized building in Flatbush, Brooklyn (11226). It has about 54 apartments, built in 1952.
Also written as 550 East 21st Street — or 550 E 21st St, Brooklyn, NY 11226.
How this building compares
With about 54 apartments it is larger than 71% of the 564 rent-stabilized buildings this site tracks in Flatbush. It went up in 1952, 21 years after the 1931 median for stabilized buildings tracked in the neighborhood. HPD lists 48 open violations here, about 0.9 per apartment — matching the median for tracked buildings in the neighborhood. Of the 1,063 violations on record at the address, 247 are class C — HPD's immediately hazardous grade, and 30 of them are still open. HPD issued 17 new violations at the address in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Flatbush |
| ZIP | 11226 |
| Year built | 1952 |
| Apartments | 54 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3051840031 |
Owner & management
| Owner | 550 East 21 LLC 261 Lenox Road OFFICE · Brooklyn, NY 11226 |
| Managing agent | Yida Stern |
Building conditions
| HPD violations | 48 open / 1063 total · 17 in last 12 mo |
| HPD complaints | 2 open / 1064 total |
| HPD registration last filed | September 9, 2025 |
Full building report — $9
Frequently asked questions
Is 550 E 21st St rent stabilized?
550 E 21st St 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 550 E 21st St?
550 E 21st St (BBL 3051840031) has about 54 residential apartments and was built in 1952, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized.