Is 303a W 21st St rent stabilized?
303a W 21st St is a registered NYC rent-stabilized building in Chelsea-Hudson Yards, Manhattan (10011). It has about 15 apartments, built in 1900.
Also written as 303a West 21st Street — or 303a W 21st St, Manhattan, NY 10011.
How this building compares
With about 15 apartments it is smaller than 61% of the 490 rent-stabilized buildings this site tracks in Chelsea-Hudson Yards. Its 1900 construction date sits close to the 1910 median for stabilized buildings tracked in the neighborhood. HPD lists 4 open violations here, about one for every 4 apartments — above the one for every 6 apartments median for tracked buildings in the neighborhood. Of the 153 violations on record at the address, 19 are class C — HPD's immediately hazardous grade. Tenants have filed 46 HPD complaints at the address, 2 of them in the last twelve months.
Building details
| Borough | Manhattan |
| Neighborhood | Chelsea-Hudson Yards |
| ZIP | 10011 |
| Year built | 1900 |
| Apartments | 15 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A, 421-A (1-15) |
| BBL | 1007450031 |
Owner & management
| Owner | GAILILEO ASSOC LLC 122 EAST 42ND STREET #1512 · New York, NY 10168 |
| Managing agent | DaltonManagementCompany |
Building conditions
| HPD violations | 4 open / 153 total · 4 in last 12 mo |
| HPD complaints | 2 open / 46 total |
| HPD registration last filed | October 21, 2025 |
Full building report — $9
Other rent-stabilized buildings in Chelsea-Hudson Yards
See all in Chelsea-Hudson Yards →