Is 643 Southern Blvd rent stabilized?
643 Southern Blvd is a registered NYC rent-stabilized building in Longwood, the Bronx (10455). It has about 46 apartments, built in 1925.
Also written as 643 Southern Boulevard — or 643 Southern Blvd, the Bronx, NY 10455.
How this building compares
With about 46 apartments it is larger than 79% of the 264 rent-stabilized buildings this site tracks in Longwood. Its 1925 construction date sits close to the 1922 median for stabilized buildings tracked in the neighborhood. HPD lists 133 open violations here, about 2.9 per apartment — above the 0.7 per apartment median for tracked buildings in the neighborhood. Of the 1,594 violations on record at the address, 337 are class C — HPD's immediately hazardous grade, and 40 of them are still open. HPD issued 49 new violations at the address in the last twelve months.
Building details
| Borough | the Bronx |
| Neighborhood | Longwood |
| ZIP | 10455 |
| Year built | 1925 |
| Apartments | 46 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 2026830094 |
Owner & management
| Owner | 643 SOUTHERN LLC 20 S BROADWAY #300 · Yonkers, NY 10701 |
| Managing agent | DAVID TENNENBAUM |
Building conditions
| HPD violations | 133 open / 1594 total · 49 in last 12 mo |
| HPD complaints | 6 open / 2324 total |
| HPD registration last filed | August 11, 2025 |
Full building report — $9
Frequently asked questions
Is 643 Southern Blvd rent stabilized?
643 Southern Blvd in Longwood, the Bronx 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 643 Southern Blvd?
643 Southern Blvd (BBL 2026830094) has about 46 residential apartments and was built in 1925, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized.