HPD violation guides, read from the city's own record.
An HPD violation guide on this site answers one question that owners, managers and the firms that clear violations keep asking, and answers it from the record rather than from the rule. The city sets a standard. HPD's own violation file, 2,924,010 rows in our working copy as of September 9, 2026, shows what happens against that standard: how long correction takes at the median, what share is ever certified, and where cases stop. Every figure on this page was queried from that copy at this deploy. The status glossary says what a status means. A guide says how often it happens and how long it takes.
The questions are the ones people bring to this site: what the violation classes mean, what a certificate of correction does once it is filed, whether a heat violation is fixed inside the 24-hour standard, why a lead paint violation stays on the record for months after the work was done, and how a violation gets dismissed rather than closed. Each guide opens with the measured figure, then the rule it is measured against, then who the number matters to: the owner or manager who has to clear it, the firm that clears violations for a living, and the tenant who reported the condition.
See what is open on one building.
HPD violation classes: what A, B and C mean on the record.
HPD sorts every housing violation into class A, B or C by hazard, and the class sets the correction window: 90 days, 30 days, 24 hours. Of the 871,519 Class C violations on the record, 45.6% have ever been certified corrected, at a median of 16 days. Class A certifies at 31.5%, Class B at 47.2%. The guide carries the three windows, the certification record of each class, which class each of the 6 categories mostly lands in, and Class I, the registration orders that clear by filing.
An HPD certificate of correction: what the record shows after you file.
A certificate of correction is the owner's statement to HPD that the condition was fixed. On the record it lands as one of a handful of statuses: 8,716 violations carry NOV Certified On Time, 17,274 NOV Certified Late, and 20,888 Invalid Certification. The median from inspection to an accepted certification is 28 days across the three classes. The guide covers what HPD accepts, the statuses a filing can land on, what happens when nothing is filed, and the separate document review lead paint gets.
An HPD heat violation is fixed in 9 days, or it is not fixed at all.
The standard for a Class C heat or hot water violation is 24 hours. Of the 148,537 Class C heat and hot water violations HPD has recorded since August 7, 2023, 48.9% have ever been certified corrected and 32.1% have stood uncorrected for more than a year. 34,015 sit at NOV Sent Out with no later status and 3,630 carry Not Complied With. Heat season runs October 1 through May 31, and 86.9% of these violations date from it. The guide carries the monthly shape, the median for each of the 5 boroughs, and where heat ranks against the other categories on certification.
An HPD lead paint violation that needs abatement takes 68 days to clear.
Lead paint ranks 5 of 6 categories on the share of Class C violations ever certified corrected, as of September 9, 2026. The 5,812 Class C lead paint violations whose text names abatement clear at a median of 68 days, against 34 days for the rest of the category. HPD records the document review for lead separately from every other category, which makes the acceptance rate measurable here and nowhere else: of 770 lead document submissions on the record, 274 were accepted. The guide covers the abatement rule, the borough split, the acceptance rate, and the statuses where lead paint cases stop.
How an HPD violation gets dismissed.
914,613 of the 2,924,010 violations on HPD's record carry the status Violation Dismissed as of September 9, 2026. Where the inspection date and the dismissal date both exist, dismissal came a median of 101 days after inspection, and 9 in 10 came within 186 days. Dismissed and closed are not the same status: 83.9% of dismissed violations carry a certification of correction, against 40.4% of closed ones. The guide covers what has to happen before a dismissal, the split by class and by agency, and the difference from a DOB matter contested at an OATH/ECB hearing.
What a guide measures, and what it does not
Every figure is an aggregate over HPD's violation record, counted by violation, never by building or owner. A median is the middle case: half the certified violations in that group cleared faster, half slower. The denominator is stated next to each figure because the share ever certified and the share uncorrected past a year are different questions with different bases. A percentage is of the group named, not of the whole record.
A guide reads the record. It does not file a dismissal request, correct a violation, represent an owner or a tenant, or give legal advice. Anything procedural is routed to HPD's own process or, for a DOB matter, to the hearing at OATH/ECB, rather than instructed here. No building and no owner is named on this page or on any guide.
The record runs through September 9, 2026, the latest status date in our working copy. HPD's own file lags the inspector by days to weeks, so the newest cases are under-counted in every guide. The figures are re-queried whenever the site is published and never between publishes, and each guide's citation block carries the as-of date for the version you are reading.
Where the guides connect
A status name on its own is decoded in the status glossary; a guide is the next question, how often and how long. The record by borough carries the same 6 categories for each of the 5 boroughs, and every citywide figure in a guide is the sum of those borough rows, so the two cannot disagree. How HPD, DOB and OATH/ECB fit together is on the agencies page. How to check your own building starts on the city's own sites.
Aggregates only; no building or owner is named on this page. Source: NYC Open Data, our own working copy, queried at this deploy. Citywide, ViolationScout.