The record, by borough and category.
Heat season: the rule and the record
Each of the 30 pages below is aggregated from the city's data at each deploy and shows the verified feed's current picture. Aggregates only, never a building or an owner.
If you work several boroughs, the table below shows where the volume concentrates before you open a single category page. If you are checking one address, use the status glossary or search HPD Online directly; this hub is aggregates, never a building lookup.
Citywide, by category
HPD's record carries 157,174 heat and hot water, 76,106 lead paint, 210,088 vermin and pests, 128,715 mold, 208,915 water leaks, 56,333 electrical violations across the five boroughs, all years on record, all classes combined. Every category page linked below breaks its own total down by month, class, certification record, street, and status.
| Category | Bronx | Brooklyn | Manhattan | Queens | Staten Island | Citywide |
|---|---|---|---|---|---|---|
| Heat and hot water | 55,679 | 46,793 | 34,392 | 17,900 | 2,410 | 157,174 |
| Lead paint | 31,529 | 23,736 | 11,388 | 8,876 | 577 | 76,106 |
| Vermin and pests | 89,251 | 61,441 | 34,266 | 20,534 | 4,596 | 210,088 |
| Mold | 52,922 | 39,450 | 19,289 | 14,093 | 2,961 | 128,715 |
| Water leaks | 77,625 | 66,289 | 35,944 | 25,432 | 3,625 | 208,915 |
| Electrical | 19,503 | 19,147 | 9,426 | 6,228 | 2,029 | 56,333 |
| All six categories | 326,509 | 256,856 | 144,705 | 93,063 | 16,198 | 837,331 |
Pulled from HPD's own violation record August 27, 2026, back to July 31, 2023. Sources: NYC Open Data (HPD violations), cited not linked.
Certification record, citywide
A different question than volume: of each category's Class C load, the immediately-hazardous class, how much has ever been certified corrected. Vermin and pests clears at the highest rate, 51.8%. Mold clears at the lowest, 17.7%.
| Category | Class C violations | Ever certified | Certified rate | Open, over a year |
|---|---|---|---|---|
| Heat and hot water | 148,194 | 72,584 | 49.0% | 47,491 |
| Lead paint | 67,799 | 13,922 | 20.5% | 39,236 |
| Vermin and pests | 197,103 | 102,005 | 51.8% | 66,105 |
| Mold | 11,963 | 2,120 | 17.7% | 7,613 |
| Water leaks | 26,837 | 9,280 | 34.6% | 11,263 |
| Electrical | 12,037 | 3,517 | 29.2% | 5,272 |
Certified rate is certifications ever accepted against the Class C total for that category, citywide, all boroughs summed. The open-over-a-year column counts Class C violations with no certification on file, inspected more than 365 days ago.
What each category covers
Heat and hot water. No heat in winter and no hot water year-round are immediately hazardous Class C conditions. The owner must restore service and certify the correction; the violation stays on the record until the agency accepts it. Citywide: 157,174, all boroughs combined.
Lead paint. Lead paint violations where a child may reside are among the most serious items HPD issues. Abatement must be performed by certified firms and the correction certified with the agency. Citywide: 76,106, all boroughs combined.
Vermin and pests. Rodent and roach conditions are hazardous violations that require eradication and, in repeat cases, integrated pest management. Open items compound quickly across inspections. Citywide: 210,088, all boroughs combined.
Mold. Mold conditions trigger correction requirements under the housing maintenance code and, at scale, Local Law 55 obligations. The record tracks each cited condition until certified. Citywide: 128,715, all boroughs combined.
Water leaks. Active leaks cascade into mold, electrical, and structural items if left open. Leak violations frequently recur across units of the same building on the record. Citywide: 208,915, all boroughs combined.
Electrical. Defective electrical conditions are life-safety items. Correction typically requires licensed work and certification before the record clears. Citywide: 56,333, all boroughs combined.
Every page, by borough
Bronx
Heat and hot waterLead paintVermin and pestsMoldWater leaksElectricalBrooklyn
Heat and hot waterLead paintVermin and pestsMoldWater leaksElectricalManhattan
Heat and hot waterLead paintVermin and pestsMoldWater leaksElectricalQueens
Heat and hot waterLead paintVermin and pestsMoldWater leaksElectricalStaten Island
Heat and hot waterLead paintVermin and pestsMoldWater leaksElectricalHow these figures are made
The category totals and the certification table above are queried directly from our working copy of HPD's Housing Maintenance Code Violations dataset at every deploy, one full-table scan per category rather than thirty separate borough queries. The trailing-3-year headline figure on each borough page instead reads the city's own open-data API live, so a reader can check it without trusting our copy of the data. Both numbers describe the same category; where they differ is scope, all-time here against a rolling three years there, not disagreement. How the pipeline works covers the rest of the build.
Citywide, status codes decoded, how HPD, DOB, and OATH/ECB fit together, this week, ViolationScout