Is 315 W 21st St rent stabilized?
315 W 21st St is a registered NYC rent-stabilized building in Chelsea-Hudson Yards, Manhattan (10011). It has about 35 apartments, built in 1938.
Also written as 315 West 21st Street — or 315 W 21st St, Manhattan, NY 10011.
How this building compares
With about 35 apartments it is larger than 74% of the 490 rent-stabilized buildings this site tracks in Chelsea-Hudson Yards. It went up in 1938, 28 years after the 1910 median for stabilized buildings tracked in the neighborhood. HPD lists no open violations at this address — one of 145 such buildings among the 500 this site tracks in the neighborhood. Of the 43 violations on record at the address, 1 is class C — HPD's immediately hazardous grade, and it is no longer open. Tenants have filed 328 HPD complaints at the address, none of them in the last twelve months.
Building details
| Borough | Manhattan |
| Neighborhood | Chelsea-Hudson Yards |
| ZIP | 10011 |
| Year built | 1938 |
| Apartments | 35 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 1007450026 |
Owner & management
| Owner | Ismo 9 LLC 224 west 35th street #11th f · New York, NY 10001 |
| Managing agent | sean piroozian |
Building conditions
| HPD violations | 0 open / 43 total |
| HPD complaints | 0 open / 328 total |
| HPD registration last filed | April 16, 2026 |
Full building report — $9
Frequently asked questions
Is 315 W 21st St rent stabilized?
315 W 21st St in Chelsea-Hudson Yards, 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 315 W 21st St?
315 W 21st St (BBL 1007450026) has about 35 residential apartments and was built in 1938, 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 Chelsea-Hudson Yards
See all in Chelsea-Hudson Yards →