Is 669 E 21st St rent stabilized?
669 E 21st St is a registered NYC rent-stabilized building in Flatbush, Brooklyn (11226). It has about 8 apartments, built in 2005.
Also written as 669 East 21st Street — or 669 E 21st St, Brooklyn, NY 11226.
How this building compares
With about 8 apartments it is smaller than 90% of the 564 rent-stabilized buildings this site tracks in Flatbush. It went up in 2005, 74 years after the 1931 median for stabilized buildings tracked in the neighborhood. HPD lists 2 open violations here, about one for every 4 apartments — below the 0.9 per apartment median for tracked buildings in the neighborhood. Of the 30 violations on record at the address, 14 are class C — HPD's immediately hazardous grade. Tenants have filed 77 HPD complaints at the address, 47 of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Flatbush |
| ZIP | 11226 |
| Year built | 2005 |
| Apartments | 8 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A, 421-A (1-15) |
| BBL | 3052210081 |
Owner & management
| Owner | 669 EAST 21 STREET LLC 580 8th Avenue #14 · New York, NY 10018 |
| Managing agent | Cobble Hill Management |
Building conditions
| HPD violations | 2 open / 30 total · 22 in last 12 mo |
| HPD complaints | 0 open / 77 total |
| HPD registration last filed | July 16, 2025 |