50 East 21st Street
A 6-story building with 59 apartments, built in 1936, in Brooklyn, NY 11226.
Addresses on the lot: 36 to 54 East 21st Street.
HPD records as of October 24, 2026
50 East 21st Street has 59 open HPD violations, 20 of them immediately hazardous. Tenants made 49 complaints to HPD in the past year, 19 about heat or hot water. It is registered to Prospect 21, LLC. 59 apartments were registered as rent stabilized in 2023.
Does 50 East 21st Street have open violations?
Yes: 59 open violations as of October 24, 2026. HPD sorts them by how soon the owner must fix them:
| Class | Deadline | Open |
|---|---|---|
| C, immediately hazardous | 24 hours for most | 20 |
| B, hazardous | 30 days | 32 |
| A, non-hazardous | About 90 days | 7 |
It has an open class C violation, as 70% of NYC buildings with 50 to 99 apartments do. More on buildings by size
Of the violations HPD wrote here in the past year, 41 have been closed.
Every violation on HPD Online ↗ · How to read HPD violations
What do tenants complain about?
Tenants made 49 complaints to HPD in the 12 months to October 24, 2026, 19 of them about heat or hot water. Complaints reach HPD through 311; an inspector may then write a violation.
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 50 East 21st Street?
50 East 21st Street is registered with HPD to Prospect 21, 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
The latest housing court case over conditions or harassment opened in August 2026. HPD’s record has 13 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, 12% of residential buildings in 11226 had a housing court case in the past five years.
Is 50 East 21st Street rent stabilized?
59 apartments were registered as rent stabilized in 2023, the same as in 2018. That’s 59 of the building’s 59 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 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
- 395 Ocean Avenue100 apartments, built 1940
- 56 East 21st Street20 apartments, built 2017
- 62 East 21st Street23 apartments, built 2016
- 18 East 21st Street60 apartments, built 1927
- 55 East 21st Street60 apartments, built 1935
- 39 East 21st Street24 apartments, built 2016
HPD violations, complaints, registrations and housing court cases as of October 24, 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 3-05062-0051.