Is 343 E 66th St rent stabilized?
343 E 66th St is a registered NYC rent-stabilized building in Upper East Side-Lenox Hill-Roosevelt Island, Manhattan (10065). It has about 27 apartments, built in 1910.
Also written as 343 East 66th Street — or 343 E 66th St, Manhattan, NY 10065.
How this building compares
With about 27 apartments it is larger than 63% of the 626 rent-stabilized buildings this site tracks in Upper East Side-Lenox Hill-Roosevelt Island. Its 1910 construction date sits close to the 1910 median for stabilized buildings tracked in the neighborhood. HPD lists 5 open violations here, about one for every 5 apartments — above the one for every 10 apartments median for tracked buildings in the neighborhood. Of the 114 violations on record at the address, 56 are class C — HPD's immediately hazardous grade. Tenants have filed 136 HPD complaints at the address, 19 of them in the last twelve months.
Building details
| Borough | Manhattan |
| Neighborhood | Upper East Side-Lenox Hill-Roosevelt Island |
| ZIP | 10065 |
| Year built | 1910 |
| Apartments | 27 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 1014410023 |
Owner & management
| Owner | WHITE MOUNTAIN REALTY CORP 1695 LEXINGTON AVENUE #STORE · NEW YORK, NY 10029 |
| Managing agent | DMB PROPERTIES INC |
Building conditions
| HPD violations | 5 open / 114 total · 4 in last 12 mo |
| HPD complaints | 0 open / 136 total |
| HPD registration last filed | August 31, 2025 |
Full building report — $9
Other rent-stabilized buildings in Upper East Side-Lenox Hill-Roosevelt Island
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