Is 644 Riverside Dr rent stabilized?
644 Riverside Dr is a registered NYC rent-stabilized building in Hamilton Heights-Sugar Hill, Manhattan (10031). It has about 98 apartments, built in 1914.
Also written as 644 Riverside Drive — or 644 Riverside Dr, Manhattan, NY 10031.
How this building compares
With about 98 apartments it is larger than 98% of the 517 rent-stabilized buildings this site tracks in Hamilton Heights-Sugar Hill. Its 1914 construction date sits close to the 1910 median for stabilized buildings tracked in the neighborhood. HPD lists 28 open violations here, about one for every 4 apartments — below the 0.9 per apartment median for tracked buildings in the neighborhood. Of the 935 violations on record at the address, 237 are class C — HPD's immediately hazardous grade. Tenants have filed 4,323 HPD complaints at the address, 54 of them in the last twelve months.
Building details
| Borough | Manhattan |
| Neighborhood | Hamilton Heights-Sugar Hill |
| ZIP | 10031 |
| Year built | 1914 |
| Apartments | 98 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 1020880114 |
Owner & management
| Owner | 644 RIVERSIDE HDFC 1328 NEW YORK AVENUE ## · Huntington, NY 11746 |
| Managing agent | CONCORD MANAGEMENT OF NY, LLC |
Building conditions
| HPD violations | 28 open / 935 total · 7 in last 12 mo |
| HPD complaints | 2 open / 4323 total |
| HPD registration last filed | October 9, 2025 |
Full building report — $9
Other rent-stabilized buildings in Hamilton Heights-Sugar Hill
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