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 64 open violations here, about 1.2 per apartment — above the 0.9 per apartment median for tracked buildings in the neighborhood. Of the 1,059 violations on record at the address, 247 are class C — HPD's immediately hazardous grade. Tenants have filed 1,063 HPD complaints at the address, 18 of them 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 | 64 open / 1059 total · 16 in last 12 mo |
| HPD complaints | 3 open / 1063 total |
| HPD registration last filed | September 9, 2025 |