Is 257 Adelphi St rent stabilized?
257 Adelphi St is a registered NYC rent-stabilized building in Fort Greene, Brooklyn (11205). It has about 7 apartments, built in 1855.
Also written as 257 Adelphi Street — or 257 Adelphi St, Brooklyn, NY 11205.
How this building compares
With about 7 apartments it is smaller than 70% of the 164 rent-stabilized buildings this site tracks in Fort Greene. It went up in 1855, 65 years before the 1920 median for stabilized buildings tracked in the neighborhood. HPD lists 7 open violations here, about 1.0 per apartment — above the one for every 2 apartments median for tracked buildings in the neighborhood. Of the 19 violations on record at the address, 5 are class C — HPD's immediately hazardous grade. Tenants have filed 33 HPD complaints at the address, 5 of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Fort Greene |
| ZIP | 11205 |
| Year built | 1855 |
| Apartments | 7 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3020910001 |
Owner & management
| Owner | ADELPHI REALTY LLC 781 EAST NEW YORK AVENUE #3 · BROOKLYN, NY 11203 |
| Managing agent | ADELPHI REALTY LLC |
Building conditions
| HPD violations | 7 open / 19 total · 6 in last 12 mo |
| HPD complaints | 0 open / 33 total |
| HPD registration last filed | April 23, 2026 |