William G Demos: head officer on HPD registrations
William G Demos is named as head officer on the HPD property registrations of 42 NYC buildings (966 units), which have 587 open HPD violations, 161 of them class C, as of Oct 24, 2026.
Grouped automatically from HPD registration filings by name and business address. Different people can share a name; report an error.
Buildings
| Address | Area | Units | Open violations | Grade |
|---|---|---|---|---|
| 157-11 Sanford Avenue | Flushing | 86 | 98 (7 class C) | F |
| 24-24 29th Street | Astoria | 27 | 76 (25 class C) | F |
| 34-15 31st Avenue | Astoria | 59 | 65 (26 class C) | D |
| 32-15 34th Street | Astoria | 40 | 42 (4 class C) | F |
| 56-10 94th Street | Elmhurst | 112 | 41 (15 class C) | C |
| 6113 5th Avenue | Sunset Park | 49 | 36 (6 class C) | D |
| 189-15 37th Avenue | Auburndale | 18 | 30 (6 class C) | F |
| 28-10 36th Street | Astoria | 24 | 25 (12 class C) | D |
| 31-70 37th Street | Astoria | 8 | 25 (7 class C) | F |
| 48-08 108th Street | Corona | 22 | 16 (13 class C) | F |
| 90-31 Whitney Avenue | Elmhurst | 60 | 16 (9 class C) | B |
| 29-24 21st Avenue | Astoria | 60 | 14 | C |
| 36-23 30th Street | Queensbridge | 6 | 13 (6 class C) | F |
| 28-25 34th Street | Astoria | 20 | 12 (1 class C) | C |
| 39-06 Corporal Stone St | Bayside | 30 | 12 (2 class C) | D |
| 30-40 45th Street | Astoria | 20 | 11 (4 class C) | D |
| 189-10 37th Avenue | Auburndale | 16 | 9 (1 class C) | D |
| 150-02 Roosevelt Avenue | Flushing | 8 | 8 (1 class C) | D |
| 40-07 73rd Street | Elmhurst | 31 | 8 (5 class C) | C |
| 30-78 34th Street | Astoria | 30 | 6 (1 class C) | C |
| 30-84 34th Street | Astoria | 30 | 5 (1 class C) | C |
| 189-16 37th Avenue | Auburndale | 16 | 4 (2 class C) | C |
| 25-26 18th Street | Astoria | 6 | 4 (1 class C) | F |
| 57 Audubon Avenue | Washington Heights | 14 | 4 (2 class C) | C |
| 1633 2nd Avenue | Upper East Side | 12 | 2 | A |
| 25-24 18th Street | Astoria | 6 | 2 (2 class C) | C |
| 31-21 Ditmars Boulevard | Astoria | 12 | 1 (1 class C) | A |
| 441 Henry Street | Carroll Gardens | 9 | 1 (1 class C) | A |
| 83-05 34th Avenue | Jackson Heights | 16 | 1 | C |
| 25-54 35th Street | Astoria | 6 | 0 | A |
| 28-20 Ditmars Boulevard | Astoria | 1 | 0 | A |
| 32-30 44th Street | Astoria | 6 | 0 | A |
| 34-16 34th Street | Astoria | 8 | 0 | A |
| 35-14 28th Avenue | Astoria | 28 | 0 | A |
| 40-11 23rd Avenue | Astoria | 5 | 0 | A |
| 42-35 192nd Street | Auburndale | 2 | 0 | A |
| 42-36 193rd Street | Auburndale | 2 | 0 | A |
| 42-37 192nd Street | Auburndale | 2 | 0 | A |
| 42-40 193rd Street | Auburndale | 2 | 0 | A |
| 42-42 193rd Street | Auburndale | 1 | 0 | A |
| 439 Henry Street | Carroll Gardens | 9 | 0 | A |
| 7 Cornelia Street | West Village | 47 | 0 | A |
How landlord totals are counted.
Sources: NYC HPD housing maintenance code violations, HPD property registrations and housing litigation, 311 service requests, DOB violations, NYC Marshals evictions, and HPD bedbug filings from NYC Open Data, plus rent-stabilized unit counts from NYC Department of Finance tax bills. How grades work.