Is 634 Saint Nicholas Ave rent stabilized?
634 Saint Nicholas Ave is a registered NYC rent-stabilized building in Hamilton Heights-Sugar Hill, Manhattan (10030). It has about 60 apartments, built in 1930.
Also written as 634 Saint Nicholas Avenue — or 634 Saint Nicholas Ave, Manhattan, NY 10030.
How this building compares
With about 60 apartments it is larger than 90% of the 517 rent-stabilized buildings this site tracks in Hamilton Heights-Sugar Hill. It went up in 1930, 20 years after the 1910 median for stabilized buildings tracked in the neighborhood. HPD lists 13 open violations here, about one for every 5 apartments — below the 0.9 per apartment median for tracked buildings in the neighborhood. Of the 146 violations on record at the address, 34 are class C — HPD's immediately hazardous grade, and 4 of them are still open. HPD issued 6 new violations at the address in the last twelve months.
Building details
| Borough | Manhattan |
| Neighborhood | Hamilton Heights-Sugar Hill |
| ZIP | 10030 |
| Year built | 1930 |
| Apartments | 60 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 1020510020 |
Owner & management
| Owner | 634 NICK PARTNERS LP 111 N CENTRAL PARK AVE #400 · HARTSDALE, NY 10530 |
| Managing agent | MARK SCHARFMAN |
Building conditions
| HPD violations | 13 open / 146 total · 6 in last 12 mo |
| HPD complaints | 0 open / 654 total |
| HPD registration last filed | September 4, 2025 |
Full building report — $9
Frequently asked questions
Is 634 Saint Nicholas Ave rent stabilized?
634 Saint Nicholas Ave in Hamilton Heights-Sugar Hill, Manhattan 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 634 Saint Nicholas Ave?
634 Saint Nicholas Ave (BBL 1020510020) has about 60 residential apartments and was built in 1930, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized.
Other rent-stabilized buildings in Hamilton Heights-Sugar Hill
See all in Hamilton Heights-Sugar Hill →