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 73 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, and 17 of them are still open. HPD issued 11 new violations at the address 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 | 73 open / 351 total · 11 in last 12 mo |
| HPD complaints | 0 open / 490 total |
| HPD registration last filed | July 30, 2025 |
Full building report — $9
Frequently asked questions
Is 351 E 21st St rent stabilized?
351 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 351 E 21st St?
351 E 21st St (BBL 3051250084) has about 38 residential apartments and was built in 1925, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized.