Is 21 Adelphi St rent stabilized?
21 Adelphi St is a registered NYC rent-stabilized building in Fort Greene, Brooklyn (11205). It has about 8 apartments, built in 1915.
Also written as 21 Adelphi Street — or 21 Adelphi St, Brooklyn, NY 11205.
How this building compares
With about 8 apartments it sits near the middle of the 164 rent-stabilized buildings this site tracks in Fort Greene, where the median building has 9. Its 1915 construction date sits close to the 1920 median for stabilized buildings tracked in the neighborhood. HPD lists 11 open violations here, about 1.4 per apartment — above the one for every 2 apartments median for tracked buildings in the neighborhood. Of the 29 violations on record at the address, 9 are class C — HPD's immediately hazardous grade. Tenants have filed 21 HPD complaints at the address, none of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Fort Greene |
| ZIP | 11205 |
| Year built | 1915 |
| Apartments | 8 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING B, GARDEN COMPLEX |
| BBL | 3020320014 |
Owner & management
| Owner | 21 ADELPHI ST LLC 413 PACIFIC · BROOKLYN, NY 11217 |
| Managing agent | MANIFOOKI PROPERTIES |
Building conditions
| HPD violations | 11 open / 29 total · 1 in last 12 mo |
| HPD complaints | 0 open / 21 total |
| HPD registration last filed | September 13, 2025 |