31-09 21st Avenue
A 4-story building with 21 apartments, built in 1926, in Queens, NY 11105.
Addresses on the lot: 31-01 to 31-09 21st Avenue.
HPD records as of October 25, 2026
31-09 21st Avenue has 3 open HPD violations. Tenants made 3 complaints to HPD in the past year, 3 about heat or hot water. It is registered to Blue Spartan Kyriakides 31-01 LLC. 5 apartments were registered as rent stabilized in 2023.
Does 31-09 21st Avenue have open violations?
Yes: 3 open violations as of October 25, 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 | 3 |
No class C violation is open. 66% of NYC buildings with 20 to 49 apartments have one. More on buildings by size
Of the violations HPD wrote here in the past year, 1 has been closed.
Every violation on HPD Online ↗ · How to read HPD violations
What do tenants complain about?
Tenants made 3 complaints to HPD in the 12 months to October 25, 2026, 3 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 31-09 21st Avenue?
31-09 21st Avenue is registered with HPD to Blue Spartan Kyriakides 31-01 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 no evictions here in the five years to May 30, 2026.
For comparison, 1% of residential buildings in 11105 had a housing court case in the past five years.
Is 31-09 21st Avenue rent stabilized?
5 apartments were registered as rent stabilized in 2023, the same as in 2021. That’s 5 of the building’s 21 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
- 31-17 21st Avenue53 apartments, built 1931
- 20-78 31st Street42 apartments, built 1926
- 20-64 31st Street40 apartments, built 1926
- 29-24 21st Avenue60 apartments, built 1929
- 20-54 31st Street32 apartments, built 1926
- 31-32 21st Avenue35 apartments, built 1929
HPD violations, complaints, registrations and housing court cases as of October 25, 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 4-00829-0001.