Is 551 W 174th St rent stabilized?
551 W 174th St is a registered NYC rent-stabilized building in Washington Heights (South), Manhattan (10033). It has about 21 apartments, built in 1910.
Also written as 551 West 174th Street — or 551 W 174th St, Manhattan, NY 10033.
How this building compares
With about 21 apartments it is smaller than 63% of the 658 rent-stabilized buildings this site tracks in Washington Heights (South). Its 1910 construction date sits close to the 1914 median for stabilized buildings tracked in the neighborhood. HPD lists 36 open violations here, about 1.7 per apartment — above the 0.7 per apartment median for tracked buildings in the neighborhood. Of the 112 violations on record at the address, 29 are class C — HPD's immediately hazardous grade, and 12 of them are still open. HPD issued 8 new violations at the address in the last twelve months.
Building details
| Borough | Manhattan |
| Neighborhood | Washington Heights (South) |
| ZIP | 10033 |
| Year built | 1910 |
| Apartments | 21 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 1021310022 |
Owner & management
| Owner | DIAGONAL REALTY LLC 145 West 71st Street #1A · New York, NY 10023 |
| Managing agent | DIAGONAL REALTY LLC |
Building conditions
| HPD violations | 36 open / 112 total · 8 in last 12 mo |
| HPD complaints | 0 open / 184 total |
| HPD registration last filed | March 12, 2026 |
Full building report — $9
Frequently asked questions
Is 551 W 174th St rent stabilized?
551 W 174th St in Washington Heights (South), 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 551 W 174th St?
551 W 174th St (BBL 1021310022) has about 21 residential apartments and was built in 1910, 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 Washington Heights (South)
See all in Washington Heights (South) →