John J Walsh: head officer on HPD registrations
John J Walsh is named as head officer on the HPD property registrations of 8 NYC buildings (36 units), which have 41 open HPD violations, 2 of them class C, as of Oct 26, 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 |
|---|---|---|---|---|
| 553 17th Street | Windsor Terrace | 8 | 17 | D |
| 318 7th Avenue | Park Slope | 3 | 16 (2 class C) | D |
| 447 9th Street | Park Slope | 3 | 5 | D |
| 268 15th Street | Windsor Terrace | 6 | 2 | B |
| 445 9th Street | Park Slope | 5 | 1 | A |
| 252 6th Avenue | Park Slope | 4 | 0 | A |
| 368 13th Street | Park Slope | 3 | 0 | A |
| 91 Garfield Place | Park Slope | 4 | 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.