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, and 3 of them are still open. HPD issued 6 new violations at the address 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 |
Full building report — $9
Frequently asked questions
Is 257 Adelphi St rent stabilized?
257 Adelphi St in Fort Greene, Brooklyn is registered as rent stabilized in the New York State DHCR 2024 rent-stabilized building files, where its stabilization code is MULTIPLE DWELLING A. 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 257 Adelphi St?
257 Adelphi St (BBL 3020910001) has about 7 residential apartments and was built in 1855, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized.