Is 31 E 21st St rent stabilized?
31 E 21st St is a registered NYC rent-stabilized building in Flatbush, Brooklyn (11226). It has about 49 apartments, built in 1931.
Also written as 31 East 21st Street — or 31 E 21st St, Brooklyn, NY 11226.
How this building compares
With about 49 apartments it is larger than 68% of the 564 rent-stabilized buildings this site tracks in Flatbush. HPD lists 37 open violations here, about 0.8 per apartment — close to the 0.9 per apartment median for tracked buildings in the neighborhood. Of the 451 violations on record at the address, 95 are class C — HPD's immediately hazardous grade, and 12 of them are still open. HPD issued 65 new violations at the address in the last twelve months. Tenants have filed 797 HPD complaints at the address, 59 of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Flatbush |
| ZIP | 11226 |
| Year built | 1931 |
| Apartments | 49 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3050630017 |
Owner & management
| Owner | 21 EAST 21 STREET PARTNERS LLC 21 EAST 21 STREET · Brooklyn, NY 11230 |
| Managing agent | GOLDMONT REALTY CORP |
Building conditions
| HPD violations | 37 open / 451 total · 65 in last 12 mo |
| HPD complaints | 0 open / 797 total |
| HPD registration last filed | July 10, 2025 |
Full building report — $9
Frequently asked questions
Is 31 E 21st St rent stabilized?
31 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 31 E 21st St?
31 E 21st St (BBL 3050630017) has about 49 residential apartments and was built in 1931, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized.