Is 657 E 21st St rent stabilized?
657 E 21st St is a registered NYC rent-stabilized building in Flatbush, Brooklyn (11226). It has about 20 apartments, built in 1931.
Also written as 657 East 21st Street — or 657 E 21st St, Brooklyn, NY 11226.
How this building compares
With about 20 apartments it is smaller than 68% of the 564 rent-stabilized buildings this site tracks in Flatbush. HPD lists 18 open violations here, about 0.9 per apartment — matching the median for tracked buildings in the neighborhood. Of the 765 violations on record at the address, 186 are class C — HPD's immediately hazardous grade, and 10 of them are still open. HPD issued 3 new violations at the address in the last twelve months. Tenants have filed 1,287 HPD complaints at the address, 9 of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Flatbush |
| ZIP | 11226 |
| Year built | 1931 |
| Apartments | 20 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3052210086 |
Owner & management
| Owner | 657 PROPERTIES LLC 216 RIVER AVE. · LAKEWOOD, NJ 08701 |
| Managing agent | 657 PROPERTIES LLC |
Building conditions
| HPD violations | 18 open / 765 total · 3 in last 12 mo |
| HPD complaints | 0 open / 1287 total |
| HPD registration last filed | September 24, 2025 |
Full building report — $9
Frequently asked questions
Is 657 E 21st St rent stabilized?
657 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 657 E 21st St?
657 E 21st St (BBL 3052210086) has about 20 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.