509 East 73rd Street

A 6-story building with 30 apartments, built in 1920, in Manhattan, NY 10021.

HPD records as of October 27, 2026

2open HPD violationsnone hazardous

5complaints to HPD, past year1 about heat or hot water

4rent-stabilized apartmentsregistered in 2023

Nonehousing court cases in 5 years2 older

509 East 73rd Street has 2 open HPD violations. Tenants made 5 complaints to HPD in the past year, 1 about heat or hot water. It is registered to PRAXIS REALTY CO LLC. 4 apartments were registered as rent stabilized in 2023.

Does 509 East 73rd Street have open violations?

Yes: 2 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	0
B, hazardous	30 days	0
A, non-hazardous	About 90 days	2

No class C violation is open. 66% of NYC buildings with 20 to 49 apartments have one. More on buildings by size

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

What do tenants complain about?

Tenants made 5 complaints to HPD in the 12 months to October 27, 2026, 1 of them about heat or hot water. Complaints reach HPD through 311; an inspector may then write a violation.

Among NYC buildings with 20 to 49 apartments, 69% had at least one complaint to HPD in the past year, and 53% had one about heat or hot water.

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

Who owns 509 East 73rd Street?

509 East 73rd Street is registered with HPD to PRAXIS REALTY CO LLC. The registration also names a head officer, the person HPD contacts about the building.

2 other buildings are registered to the same company name, with 0 open violations between them.

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

None in the past five years. HPD’s record has 2 older cases, the latest from 2015.

City marshals carried out no evictions here in the five years to May 30, 2026.

For comparison, 6% of residential buildings in 10021 had a housing court case in the past five years.

Is 509 East 73rd Street rent stabilized?

4 apartments were registered as rent stabilized in 2023, the same as in 2018. That’s 4 of the building’s 30 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 1-01485-0008.