Is 509 W 170th St rent stabilized?
509 W 170th St is a registered NYC rent-stabilized building in Washington Heights (South), Manhattan (10032). It has about 20 apartments, built in 1911.
Also written as 509 West 170th Street — or 509 W 170th St, Manhattan, NY 10032.
How this building compares
With about 20 apartments it is smaller than 68% of the 658 rent-stabilized buildings this site tracks in Washington Heights (South). Its 1911 construction date sits close to the 1914 median for stabilized buildings tracked in the neighborhood. HPD lists 9 open violations here, about one for every 2 apartments — below the 0.7 per apartment median for tracked buildings in the neighborhood. Of the 104 violations on record at the address, 13 are class C — HPD's immediately hazardous grade, and none of them are still open. Tenants have filed 116 HPD complaints at the address, 1 of them in the last twelve months.
Building details
| Borough | Manhattan |
| Neighborhood | Washington Heights (South) |
| ZIP | 10032 |
| Year built | 1911 |
| Apartments | 20 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 1021270056 |
Owner & management
| Owner | 170 MB LLC 9 TERRACE COURT · Old Westbury, NY 11568 |
| Managing agent | WEST 170 STREET HOLDING LLC |
Building conditions
| HPD violations | 9 open / 104 total |
| HPD complaints | 0 open / 116 total |
| HPD registration last filed | August 28, 2025 |
Full building report — $9
Frequently asked questions
Is 509 W 170th St rent stabilized?
509 W 170th 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 509 W 170th St?
509 W 170th St (BBL 1021270056) has about 20 residential apartments and was built in 1911, 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) →