Is 421 W 43rd St rent stabilized?
421 W 43rd St is a registered NYC rent-stabilized building in Hell's Kitchen, Manhattan (10036). It has about 17 apartments, built in 1910.
Also written as 421 West 43rd Street — or 421 W 43rd St, Manhattan, NY 10036.
How this building compares
With about 17 apartments it sits near the middle of the 552 rent-stabilized buildings this site tracks in Hell's Kitchen, where the median building has 16. Its 1910 construction date sits close to the 1920 median for stabilized buildings tracked in the neighborhood. HPD lists 2 open violations here, about one for every 8 apartments — below the one for every 2 apartments median for tracked buildings in the neighborhood. Of the 30 violations on record at the address, 3 are class C — HPD's immediately hazardous grade, and none of them are still open. Tenants have filed 1,130 HPD complaints at the address, none of them in the last twelve months.
Building details
| Borough | Manhattan |
| Neighborhood | Hell's Kitchen |
| ZIP | 10036 |
| Year built | 1910 |
| Apartments | 17 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 1010530022 |
Owner & management
| Owner | NINTH AVENUE REALTY LLC 111 N CENTRAL PARK AVE #400 · HARTSDALE, NY 10530 |
| Managing agent | NINTH AVENUE REALTY LLC |
Building conditions
| HPD violations | 2 open / 30 total |
| HPD complaints | 1 open / 1130 total |
| HPD registration last filed | September 11, 2025 |
Full building report — $9
Frequently asked questions
Is 421 W 43rd St rent stabilized?
421 W 43rd St in Hell's Kitchen, 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 421 W 43rd St?
421 W 43rd St (BBL 1010530022) has about 17 residential apartments and was built in 1910, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized.