340 East 66th Street

A 6-story building with 58 apartments, built in 1940, in Manhattan, NY 10065.

Addresses on the lot: 334 to 342 East 66th Street.

HPD records as of October 27, 2026

8open HPD violations2 immediately hazardous

0complaints to HPD, past yearnone about heat

10rent-stabilized apartmentsregistered in 2018

Nonehousing court cases in 5 yearson HPD’s record

340 East 66th Street has 8 open HPD violations, 2 of them immediately hazardous. Tenants made no complaints to HPD in the past year. It is registered to EK 66 LLC. 10 apartments were registered as rent stabilized in 2018.

Does 340 East 66th Street have open violations?

Yes: 8 open violations as of October 27, 2026. HPD sorts them by how soon the owner must fix them:

Class	Deadline	Open
C, immediately hazardous	24 hours for most	2
B, hazardous	30 days	2
A, non-hazardous	About 90 days	4

It has an open class C violation, as 70% of NYC buildings with 50 to 99 apartments do. More on buildings by size

Every violation on HPD Online ↗ · How to read HPD violations

What do tenants complain about?

Tenants made no complaints to HPD in the 12 months to October 27, 2026.

Among NYC buildings with 50 to 99 apartments, 77% had at least one complaint to HPD in the past year, and 65% had one about heat or hot water.

Every complaint on HPD Online ↗ · Noise complaints go to 311, not HPD

Who owns 340 East 66th Street?

340 East 66th Street is registered with HPD to EK 66 LLC. The registration also names a head officer and a managing agent, the people HPD contacts about the building.

The registration on HPD Online ↗ · The owner’s other buildings, on Who Owns What ↗ · Deeds and mortgages (ACRIS) ↗ · How to find who owns a building

Housing court and evictions

HPD’s record shows no housing court cases over conditions or harassment at this building.

City marshals carried out 1 eviction here in the five years to May 30, 2026.

For comparison, 6% of residential buildings in 10065 had a housing court case in the past five years.

Is 340 East 66th Street rent stabilized?

10 apartments were registered as rent stabilized in 2018. That’s 10 of the building’s 58 apartments. Whether one apartment is stabilized is in its rent history, which the tenant can ask the state for.

How to check if an apartment is rent stabilized

Scores out of ten, from today’s records

Score this building

The address check reads the latest complaints and violations and scores the building, the landlord, the noise on the block and the walk to the subway. On a StreetEasy listing, the Chrome extension adds light for the floor and value for the rent.

Buildings nearby

HPD violations, complaints, registrations and housing court cases as of October 27, 2026; evictions and rent-stabilized counts as of May 30, 2026; size and age from the city’s PLUTO. All from NYC Open Data. Public records, not legal advice. Tax lot 1-01440-0033.