Is 543 E 21st St rent stabilized?
543 E 21st St is a registered NYC rent-stabilized building in Flatbush, Brooklyn (11226). It has about 59 apartments, built in 1931.
Also written as 543 East 21st Street — or 543 E 21st St, Brooklyn, NY 11226.
How this building compares
With about 59 apartments it is larger than 77% of the 564 rent-stabilized buildings this site tracks in Flatbush. Its 1931 construction date sits close to the 1931 median for stabilized buildings tracked in the neighborhood. HPD lists 99 open violations here, about 1.7 per apartment — above the 0.9 per apartment median for tracked buildings in the neighborhood. Of the 882 violations on record at the address, 310 are class C — HPD's immediately hazardous grade. Tenants have filed 911 HPD complaints at the address, 67 of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Flatbush |
| ZIP | 11226 |
| Year built | 1931 |
| Apartments | 59 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3051850064 |
Owner & management
| Owner | 543 EQUITIES LLC 505 THORNALL STREET #403 · EDISON, NJ 08837 |
| Managing agent | SHAMCO MANAGEMENT CORP |
Building conditions
| HPD violations | 99 open / 882 total · 191 in last 12 mo |
| HPD complaints | 1 open / 911 total |
| HPD registration last filed | September 5, 2025 |