645 Prospect Avenue
A 6-story building with 109 apartments, built in 1985, in the Bronx, NY 10455.
Addresses on the lot: 1005 East 151st Street.
HPD records as of November 3, 2026
645 Prospect Avenue has 15 open HPD violations. Tenants made 31 complaints to HPD in the past year, 4 about heat or hot water. It is registered to PROSPECT UNION ASSOCIATES.
Does 645 Prospect Avenue have open violations?
Yes: 15 open violations as of November 3, 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 | 15 |
| A, non-hazardous | About 90 days | 0 |
No class C violation is open. 56% of NYC buildings with 100 or more apartments have one. More on buildings by size
Of the violations HPD wrote here in the past year, 17 have been closed.
Every violation on HPD Online ↗ · How to read HPD violations
What do tenants complain about?
Tenants made 31 complaints to HPD in the 12 months to November 3, 2026, 4 of them about heat or hot water. Complaints reach HPD through 311; an inspector may then write a violation.
Among NYC buildings with 100 or more apartments, 72% had at least one complaint to HPD in the past year, and 57% had one about heat or hot water.
Every complaint on HPD Online ↗ · Noise complaints go to 311, not HPD
Who owns 645 Prospect Avenue?
645 Prospect Avenue is registered with HPD to PROSPECT UNION ASSOCIATES. The registration also names a head officer, the person 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
The latest housing court case over conditions or harassment opened in February 2026. HPD’s record has 10 cases here in all, going back to the 1990s.
City marshals carried out 1 eviction here in the five years to May 30, 2026.
For comparison, 17% of residential buildings in 10455 had a housing court case in the past five years.
Is 645 Prospect Avenue rent stabilized?
No rent-stabilized apartments were registered here from 2018 to 2023. That doesn’t prove there are none: some owners don’t register them.
How to check if an apartment is rent stabilized
Scores out of ten, from today’s records
Score this buildingThe 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
- 607 Prospect Avenue28 apartments, built 1998
- 835 East 152nd Street20 apartments, built 1911
- 810 East 152nd Street120 apartments, built 2004
- 634 Prospect Avenue25 apartments, built 1906
- 672 Union Avenue37 apartments, built 2022
- 592 Union Avenue43 apartments, built 1926
HPD violations, complaints, registrations and housing court cases as of November 3, 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 2-02674-0051.