Is 648 Leonard St rent stabilized?
648 Leonard St is a registered NYC rent-stabilized building in Greenpoint, Brooklyn (11222). It has about 8 apartments, built in 1928.
Also written as 648 Leonard Street — or 648 Leonard St, Brooklyn, NY 11222.
How this building compares
With about 8 apartments it sits near the middle of the 903 rent-stabilized buildings this site tracks in Greenpoint, where the median building has 6. Its 1928 construction date sits close to the 1930 median for stabilized buildings tracked in the neighborhood. HPD lists 66 open violations here, about 8.2 per apartment — above the one for every 6 apartments median for tracked buildings in the neighborhood. Of the 68 violations on record at the address, 7 are class C — HPD's immediately hazardous grade. Tenants have filed 35 HPD complaints at the address, none of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Greenpoint |
| ZIP | 11222 |
| Year built | 1928 |
| Apartments | 8 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3026210051 |
Owner & management
| Owner | GREGORY KARWOWSKI 100 NASSAU AVE · BKLYN, NY 11222 |
| Managing agent | DANUTA KARWOWSKI |
Building conditions
| HPD violations | 66 open / 68 total |
| HPD complaints | 0 open / 35 total |
| HPD registration last filed | September 23, 2025 |