121 North Portland Ave
A 13-story building with 850 apartments, built in 1939, in Brooklyn, NY 11205.
Addresses on the lot: 60 to 70 Carlton Avenue, 84 to 86 Carlton Avenue, 104 to 132 Carlton Avenue, 124 to 132 Carlton Avenue, 68 Cumberland Walk, 102 Cumberland Walk.
HPD records as of October 24, 2026
121 North Portland Ave has 22 open HPD violations, 2 of them immediately hazardous. Tenants made no complaints to HPD in the past year. No owner is registered with HPD.
Does 121 North Portland Ave have open violations?
Yes: 22 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 | 2 |
| B, hazardous | 30 days | 17 |
| A, non-hazardous | About 90 days | 3 |
It has an open class C violation, as 56% of NYC buildings with 100 or more 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 24, 2026.
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 121 North Portland Ave?
No current registration with HPD. Owners of buildings with three or more apartments must register every year, so a missing registration is worth asking about.
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 16 evictions here in the five years to May 30, 2026.
For comparison, 3% of residential buildings in 11205 had a housing court case in the past five years.
Is 121 North Portland Ave 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
- 89 Carlton Avenue22 apartments, built 2006
- 105 Carlton Avenue140 apartments, built 1930
- 88 Adelphi Street25 apartments, built 1930
- 100 Adelphi Street48 apartments, built 1900
- 137 Carlton Avenue36 apartments, built 2019
- 340 Myrtle Avenue63 apartments, built 2024
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 3-02041-0001.