A mold violation in NYC: what the citywide record shows.
mold violations on HPD's citywide record as of September 9, 2026
See what is open on one building.
A mold violation in NYC is one of 129,377 on HPD's record as of September 9, 2026. 11,977 of them are Class C, the immediately hazardous class, 9.3% of the category. Of those Class C violations 2,132 have ever been certified corrected, 17.8%, and 7,632 have stood open more than a year with nothing filed.
What this means
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.
If you own or manage the building. A mold violation stays on the building's public record until a certification is accepted, and it surfaces at sale, refinance and permit. 2,791 mold violations citywide already read Not Complied With.
If you clear violations for a living. 7,632 Class C mold violations are more than a year old with no certification on file, 63.7% of the class. That is the standing work, citywide.
If you rent here. Each of these was confirmed by an HPD inspector. The record shows whether a correction was certified, not whether the condition is gone.
Mold by borough
Bronx carries the most mold violations of the five boroughs, 53,096, and Staten Island the fewest at 2,984. Volume is not the same as follow-through: Bronx certifies 20.4% of its Class C mold violations and Queens 12.8%.
| Borough | Violations | Class C | Class C certified | Median days |
|---|---|---|---|---|
| Bronx | 53,096 | 5,384 | 20.4% | 34 |
| Brooklyn | 39,679 | 3,339 | 16.7% | 33 |
| Manhattan | 19,448 | 1,787 | 15.6% | 33 |
| Queens | 14,170 | 1,106 | 12.8% | 34 |
| Staten Island | 2,984 | 361 | 15.0% | 32 |
Each borough links to its own page for this category, with the monthly shape, the street concentration and the full status list. Median days is that borough's median from inspection to an accepted Class C certification.
Where mold violations stop
The status field is HPD saying where a case stands. Across mold violations citywide the most common is Violation Closed, and 2.2% carry Not Complied With, the status set once a certify-by date passes with no accepted certification.
| Current status | Violations | Share |
|---|---|---|
| Violation Closed | 58,799 | 45.4% |
| Violation Dismissed | 23,098 | 17.9% |
| First No Access To Re- Inspect Violation | 16,658 | 12.9% |
| Notice Of Issuance Sent To Tenant | 11,779 | 9.1% |
| Defect Letter Issued | 10,858 | 8.4% |
| Not Complied With | 2,791 | 2.2% |
| Violation Will Be Reinspected | 1,893 | 1.5% |
| Nov Sent Out | 1,514 | 1.2% |
The eight most common statuses on mold violations citywide, out of 129,377. Each name links to its own page in the status glossary.
How mold compares with the other five categories
This site tracks six categories of HPD housing violation. On the share of Class C violations ever certified corrected, mold sits at 17.8%, and the citywide median time to an accepted certification is 33 days. Heat and hot water, Lead paint, Vermin and pests, Water leaks, Electrical each carry the same tables for their own record, and the certificate of correction guide reads certification across all of them.
Common questions about NYC mold violations
How many mold violations does NYC have?
129,377 on HPD's housing maintenance code record as of September 9, 2026, of which 11,977 are Class C, the immediately hazardous class. Counted from our own copy of the city's published violation data, never an estimate.
Is a mold violation serious?
It depends on the class HPD's inspector assigned. 9.3% of mold violations are Class C, which carries a 24-hour correction window; the rest are Class A or B, at 90 and 30 days. What each class means is its own page.
How long does a mold violation take to clear?
Where a certification is accepted at all, the citywide median is 33 days from inspection for Class C. 17.8% of Class C mold violations have ever been certified corrected, and 7,632 have stood open more than a year with nothing filed.
Does this page report a mold condition or clear a violation?
No. It reads the public record. A condition inside an apartment is reported to 311; a correction is certified with HPD directly. Nothing here files, represents, or advises.
What this record does not tell you
It does not say whether a condition is gone. A violation with no certification may have been fixed the same week with nothing filed, or never touched, and the public record cannot separate the two. It carries no penalty amounts, no owner intent, and no prediction. It names no building and no owner on this page; to read one building's own record, use the form above.
Cite this page
ViolationScout, Mold violations in New York City, counts by class, borough and status over HPD's Housing Maintenance Code Violations dataset, filtered to mold. Figures cover the record through September 9, 2026 and were read on September 12, 2026. https://violationscout.com/nyc/mold
Counts over rows whose description matches mold; certified means a certified date is on the row; median days is the median of certified date minus inspection date over Class C rows that carry both. Source: NYC Open Data. How every figure here is counted: /methodology.
Aggregates only; no building or owner is named on this page. Source: NYC Open Data, queried at this deploy. The record by borough, status codes decoded, the guides, citywide.