671 Willoughby Avenue
A 5-story building with 20 apartments, built in 1931, in Brooklyn, NY 11206.
Addresses on the lot: 671 to 673 Willoughby Avenue.
HPD records as of November 5, 2026
671 Willoughby Avenue has 2 open HPD violations. Tenants made 2 complaints to HPD in the past year, 2 about heat or hot water. It is registered to OHSG OWNER LLC.
Does 671 Willoughby Avenue have open violations?
Yes: 2 open violations as of November 5, 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 | 1 |
| A, non-hazardous | About 90 days | 1 |
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, 9 have been closed.
Every violation on HPD Online ↗ · How to read HPD violations
What do tenants complain about?
Tenants made 2 complaints to HPD in the 12 months to November 5, 2026, 2 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 671 Willoughby Avenue?
671 Willoughby Avenue is registered with HPD to OHSG OWNER LLC. The registration also names a head officer and a managing agent, the people HPD contacts about the building.
9 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
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, 5% of residential buildings in 11206 had a housing court case in the past five years.
Is 671 Willoughby 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
- 675 Willoughby Avenue20 apartments, built 1916
- 676 Willoughby Avenue29 apartments, built 1931
- 666 Willoughby Avenue48 apartments, built 1931
- 660 Willoughby Avenue24 apartments, built 1927
- 217 Hart Street44 apartments, built 1926
- 698 Willoughby Avenue20 apartments, built 1905
HPD violations, complaints, registrations and housing court cases as of November 5, 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 3-01761-0063.