594 violations. One day. All of them legally requiring a fix within 24 hours.
On May 20, 2026, NYC Housing Preservation and Development inspectors issued 2,103 violations citywide. Of those, 594 were Class C — the immediately hazardous category, the one where the law stops treating delay as an inconvenience and starts treating it as a threat. Eight more were Class I, the rarest classification in the day's data, reserved for non-maintenance orders such as directives to repair or vacate. Together, Class C and Class I violations made up roughly 29% of the day's total.
That number doesn't announce itself. It sits in a public database, attached to specific buildings and specific apartments, mostly unread by the people it concerns most.
What the day's violation data actually shows
The 2,103 violations logged with an inspection date of May 20 break down by class as follows: 466 Class A, 1,035 Class B, 594 Class C, and 8 Class I. Class B was the single largest category — hazardous conditions with a 30-day correction window. But Class C, at 594, was the category with the shortest legal clock.
By borough, the Bronx led with 854 violations. Brooklyn followed with 562, Manhattan with 329, Queens with 316, and Staten Island with 42.
The buildings with the highest single-day violation counts were 2300 Sedgwick Avenue in the Bronx (34 violations, BIN 2014962), 325 East 21 Street in Brooklyn (30 violations, BIN 3117646), 3158 Perry Avenue in the Bronx (30 violations, BIN 2018304), 1555 Nostrand Avenue in Brooklyn (29 violations, BIN 3110011), and 201 Marcy Place in the Bronx (28 violations, BIN 2128648). Three of the five top buildings were in the Bronx, which also led the borough totals by a wide margin.
One inspection visit to a single building can produce dozens of violation records — each condition logged separately. A building with 34 violations on one inspection date doesn't mean 34 inspectors showed up. It means one visit found 34 distinct code conditions worth citing.
What Class C actually means under the law
NYC's Housing Maintenance Code classifies violations in three tiers plus a fourth for non-maintenance orders. Class A covers non-hazardous conditions — minor maintenance issues with a 90-day correction window. Class B covers hazardous conditions — 30 days. Class C is where the legal urgency sharpens: immediately hazardous conditions that landlords are required to correct within 24 hours in most cases.
What falls into Class C? No heat or hot water. Lead paint hazards in apartments with children under six. Vermin infestations. Mold above a certain threshold. Gas leaks. Broken locks on building entry doors. These are conditions the code treats as incompatible with safe habitation — not problems to schedule around.
Class I is different in kind. It's not a maintenance violation at all. It covers orders issued by HPD — directives to repair structural conditions, vacate units, or take specific corrective actions. Eight were issued on May 20. They're the rarest category in the dataset and the hardest to self-certify away.
What the 24-hour deadline means in practice — and what happens when it passes
The 24-hour window is a legal requirement, not a suggestion. But enforcement isn't automatic. HPD inspectors don't return to every building the next morning to confirm compliance. Landlords can self-certify that a Class C violation has been corrected — submitting documentation to HPD without a reinspection — and in many cases, that's how the record closes. Whether the underlying condition was actually fixed is a separate question.
This is where tenants have tools the law specifically created for them.
If a Class C violation is open in your building and the landlord hasn't corrected it, you can file an emergency HP action in Housing Court — a proceeding that compels the landlord to make repairs under court order. HP actions are filed in the Housing Part of Civil Court and don't require an attorney, though legal aid organizations can help. The open violation record from HPD is your evidence.
Separately, HPD's Rent Impairing Violations process can result in a rent reduction order for tenants in rent-stabilized apartments when certain serious violations remain uncorrected. A rent reduction order doesn't mean you stop paying rent — it means the legal registered rent is reduced until the condition is fixed and HPD certifies the correction.
What renters should do right now
Start with a lookup. HPD Online at hpdonline.nyc.gov lets anyone search by address or BIN. Every open violation is listed with its class, its inspection date, and its current status. Filter for Class C. If you find one that's open and past the 24-hour window, that's a documented fact — not just a complaint.
If the violation is open and the condition persists, the sequence is: call 311 to file a new complaint (which triggers a reinspection), then file an HP action in Housing Court if the landlord doesn't respond. NYC's Housing Court Help Center, located in each borough courthouse, provides free assistance to tenants navigating the process without a lawyer.
For the five buildings that topped Wednesday's violation counts — 2300 Sedgwick Avenue, 325 East 21 Street, 3158 Perry Avenue, 1555 Nostrand Avenue, 201 Marcy Place — tenants can pull the full violation list by BIN on HPD Online and see exactly which conditions were cited, in which apartments, and whether any have been certified as corrected.
The record is public. The deadline has already passed. The question is whether anyone in those buildings knows it.
Data: NYC HPD Housing Maintenance Code Violations dataset (Socrata API endpoint wvxf-dwi5), queried by Weverit on May 22, 2026, filtered to inspectiondate = '2026-05-20'. Violation counts reflect distinct violation records, not distinct inspection visits — a single visit to one building can produce multiple violation records for separate code conditions. Borough and class aggregations computed from raw violation records. Top-building rankings by violation record count per BIN. Class definitions per NYC Housing Maintenance Code Title 27 and HPD published guidance. Live data refreshes daily; query reproducible against NYC Open Data.
