Is 525 E 21st St rent stabilized?
525 E 21st St is a registered NYC rent-stabilized building in Flatbush, Brooklyn (11226). It has about 42 apartments, built in 1910.
Also written as 525 East 21st Street — or 525 E 21st St, Brooklyn, NY 11226.
How this building compares
With about 42 apartments it sits near the middle of the 564 rent-stabilized buildings this site tracks in Flatbush, where the median building has 35. It went up in 1910, 21 years before the 1931 median for stabilized buildings tracked in the neighborhood. HPD lists 38 open violations here, about 0.9 per apartment — matching the median for tracked buildings in the neighborhood. Of the 780 violations on record at the address, 164 are class C — HPD's immediately hazardous grade. Tenants have filed 1,310 HPD complaints at the address, 53 of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Flatbush |
| ZIP | 11226 |
| Year built | 1910 |
| Apartments | 42 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3051850073 |
Owner & management
| Owner | 525 EAST 21 CORP 4711 12TH AVENUE #A8 · BROOKLYN, NY 11219 |
| Managing agent | YECHIEL WEINBERGER |
Building conditions
| HPD violations | 38 open / 780 total · 65 in last 12 mo |
| HPD complaints | 0 open / 1310 total |
| HPD registration last filed | August 24, 2025 |
Full building report — $9
Frequently asked questions
Is 525 E 21st St rent stabilized?
525 E 21st St in Flatbush, Brooklyn is registered as rent stabilized in the New York State DHCR 2024 rent-stabilized building files. 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 525 E 21st St?
525 E 21st St (BBL 3051850073) has about 42 residential apartments and was built in 1910, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized, and the DHCR files this site is built on register the building rather than its individual apartments.