Is 363 E 21st St rent stabilized?
363 E 21st St is a registered NYC rent-stabilized building in Flatbush, Brooklyn (11226). It has about 8 apartments, built in 1911.
Also written as 363 East 21st Street — or 363 E 21st St, Brooklyn, NY 11226.
How this building compares
With about 8 apartments it is smaller than 90% of the 564 rent-stabilized buildings this site tracks in Flatbush. It went up in 1911, 20 years before the 1931 median for stabilized buildings tracked in the neighborhood. HPD lists 29 open violations here, about 3.6 per apartment — above the 0.9 per apartment median for tracked buildings in the neighborhood. Of the 248 violations on record at the address, 54 are class C — HPD's immediately hazardous grade. Tenants have filed 488 HPD complaints at the address, 11 of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Flatbush |
| ZIP | 11226 |
| Year built | 1911 |
| Apartments | 8 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3051250081 |
Owner & management
| Owner | ESSEX PACKAGE REALTY LLC 1360 EAST 14 STREET #101 · Brooklyn, NY 11230 |
| Managing agent | US REALTY CORP |
Building conditions
| HPD violations | 29 open / 248 total · 14 in last 12 mo |
| HPD complaints | 0 open / 488 total |
| HPD registration last filed | June 27, 2025 |