Is 434 E 75th St rent stabilized?
434 E 75th St is a registered NYC rent-stabilized building in Upper East Side-Lenox Hill-Roosevelt Island, Manhattan (10021). It has about 20 apartments, built in 1910.
Also written as 434 East 75th Street — or 434 E 75th St, Manhattan, NY 10021.
How this building compares
With about 20 apartments it sits near the middle of the 626 rent-stabilized buildings this site tracks in Upper East Side-Lenox Hill-Roosevelt Island, where the median building has 20. Its 1910 construction date sits close to the 1910 median for stabilized buildings tracked in the neighborhood. HPD lists 10 open violations here, about 0.5 per apartment — above the one for every 10 apartments median for tracked buildings in the neighborhood. Of the 15 violations on record at the address, 1 is class C — HPD's immediately hazardous grade. Tenants have filed 6 HPD complaints at the address, none of them in the last twelve months.
Building details
| Borough | Manhattan |
| Neighborhood | Upper East Side-Lenox Hill-Roosevelt Island |
| ZIP | 10021 |
| Year built | 1910 |
| Apartments | 20 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 1014690034 |
Owner & management
| Owner | RUDOLF ALONZO 500 W 44 ST #OFFICE · New York, NY 10036 |
| Managing agent | NATALIE ALONZO |
Building conditions
| HPD violations | 10 open / 15 total · 1 in last 12 mo |
| HPD complaints | 0 open / 6 total |
| HPD registration last filed | October 6, 2025 |
Full building report — $9
Other rent-stabilized buildings in Upper East Side-Lenox Hill-Roosevelt Island
See all in Upper East Side-Lenox Hill-Roosevelt Island →