Is 15a W 64th St rent stabilized?
15a W 64th St is a registered NYC rent-stabilized building in Upper West Side-Lincoln Square, Manhattan (10023). It has about 20 apartments, built in 1910.
Also written as 15a West 64th Street — or 15a W 64th St, Manhattan, NY 10023.
How this building compares
With about 20 apartments it is larger than 60% of the 407 rent-stabilized buildings this site tracks in Upper West Side-Lincoln Square. It went up in 1910, 16 years after the 1894 median for stabilized buildings tracked in the neighborhood. HPD lists 35 open violations here, about 1.8 per apartment — above the one for every 10 apartments median for tracked buildings in the neighborhood. Of the 50 violations on record at the address, 15 are class C — HPD's immediately hazardous grade. Tenants have filed 107 HPD complaints at the address, 3 of them in the last twelve months.
Building details
| Borough | Manhattan |
| Neighborhood | Upper West Side-Lincoln Square |
| ZIP | 10023 |
| Year built | 1910 |
| Apartments | 20 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 1011170023 |
Owner & management
| Owner | NYC 6400 HOLDING LLC 507 W 186 STREET #A4 · NEW YORK, NY 10033 |
| Managing agent | NYC 6400 HOLDINGS LLC |
Building conditions
| HPD violations | 35 open / 50 total |
| HPD complaints | 0 open / 107 total |
| HPD registration last filed | October 20, 2025 |
Full building report — $9
Other rent-stabilized buildings in Upper West Side-Lincoln Square
See all in Upper West Side-Lincoln Square →