Is 351 E 21st St rent stabilized?
351 E 21st St is a registered NYC rent-stabilized building in Flatbush, Brooklyn (11226). It has about 38 apartments, built in 1925.
Also written as 351 East 21st Street — or 351 E 21st St, Brooklyn, NY 11226.
How this building compares
With about 38 apartments it sits near the middle of the 564 rent-stabilized buildings this site tracks in Flatbush, where the median building has 35. Its 1925 construction date sits close to the 1931 median for stabilized buildings tracked in the neighborhood. HPD lists 74 open violations here, about 1.9 per apartment — above the 0.9 per apartment median for tracked buildings in the neighborhood. Of the 351 violations on record at the address, 69 are class C — HPD's immediately hazardous grade. Tenants have filed 489 HPD complaints at the address, 14 of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Flatbush |
| ZIP | 11226 |
| Year built | 1925 |
| Apartments | 38 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3051250084 |
Owner & management
| Owner | 351 PROPERITES LLC 1547 PRESIDENT ST #1ST FL · BROOKLYN, NY 11213 |
| Managing agent | 351 PROPERITES LLC |
Building conditions
| HPD violations | 74 open / 351 total · 11 in last 12 mo |
| HPD complaints | 0 open / 489 total |
| HPD registration last filed | July 30, 2025 |