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. 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
Other rent-stabilized buildings in Washington Heights (South)
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