Housing maintenance

HPD Violations Explained for NYC Owners and Tenants

Understand HPD Class A, B, and C violations, correction deadlines, the certification process, penalties, and how open violations affect a building.

Last reviewed: 2026-07-13

NYC Housing Preservation and Development (HPD) issues Housing Maintenance Code violations when an inspected condition in a residential building does not meet housing standards. For a small landlord, the violation’s class is the first thing to read: it communicates hazard level, drives the deadline, and determines how expensive ignoring it becomes.

This guide walks through the classes, the correction-and-certification process that actually clears a violation, and the follow-on consequences owners most often underestimate.

Class A, B, and C at a glance

* The controlling deadline is always the one printed on the Notice of Violation (NOV). Certain conditions — lead-based paint, window guards, heat and hot water — follow their own rules and can trigger emergency action by HPD rather than a waiting period.

Two reading rules that save owners real money:

1. Do not infer the deadline from the class alone. Read the official violation detail — the certify-by date is printed there.
2. Do not treat a “closed-looking” dashboard entry as proof the condition is resolved. Violations can be administratively closed, dismissed, or simply old; the underlying condition may still exist and can be re-issued at the next inspection.

Correction is not the same as certification

This distinction is where most first-time landlords stumble. Clearing an HPD violation is a two-step process:

1. Correct the physical condition. Depending on the condition this may require licensed trades (plumbing, electrical) or even DOB permits — a repair that itself needs a permit is a place where a permit expediter can save weeks.
2. Certify the correction to HPD through the eCertification system by the certification deadline. Certification is a formal legal representation. Submitting it without a completed correction is worse than missing the deadline: false certification carries its own penalties.

Some violations require more than a self-certification — supporting documents, contractor affidavits, a follow-up inspection, or agency paperwork. Lead-paint violations in particular have documentation requirements that ordinary repairs do not.

A practical sequence when the notice arrives

1. Confirm the violation number, class, issue date, apartment or location, and the stated condition.
2. Protect occupants first — heat, hot water, gas, and lead conditions are not places to schedule “next month.”
3. Determine whether licensed professionals or DOB permits are required for the fix.
4. Complete the repair and keep dated records: invoices, photos, contractor details.
5. Certify through HPD’s current process before the certify-by date, attaching whatever documentation the violation type requires.
6. Verify later that the violation actually shows as corrected in the public record — run the NYC violation lookup or HPD Online again.

What happens if you ignore it

• Civil penalties. Hazardous and immediately hazardous violations can accrue daily penalties, and HPD pursues them through housing court.
• Emergency Repair Program (ERP). For serious conditions, HPD can hire its own contractor, perform the repair, and bill the owner. Unpaid ERP charges become liens against the property.
• Escalating enforcement. Buildings that accumulate serious violations can enter targeted programs such as the Alternative Enforcement Program, which brings more inspections, tighter deadlines, and larger costs.
• Litigation exposure. Tenants can start an HP action in housing court to compel repairs; open violation history is the first evidence in that file.
• Transaction friction. Open Class B and C violations appear in every buyer’s and lender’s due diligence. They do not usually block a sale outright, but they show up in the price.

HPD is not the only agency on your building

HPD enforces the Housing Maintenance Code. The Department of Buildings (DOB) separately enforces the Building Code — construction, structural, egress, permit, and equipment issues — and its summonses are heard at OATH. The same underlying problem (say, an illegal basement conversion) can generate HPD violations, DOB violations, and a Stop Work Order at the same time. Treat each agency’s record as a separate track: certifying an HPD correction does nothing for the DOB side, and vice versa.

If the building’s paperwork picture is unclear — what the legal use even is — start from the Certificate of Occupancy rather than the violation list.

For tenants

Tenants facing unsafe conditions can call 311 or use official NYC complaint channels; inspections triggered by complaints are how most HPD violations are born. If conditions persist, an HP action in housing court can compel repairs. The public record — searchable by address — is equally available to tenants and often more persuasive than a phone call.

The bottom line for owners

Read the class, read the printed deadline, fix the condition properly, certify on time, and verify the record afterward. When the correction requires permits, licensed trades, or navigating more than one agency, get qualified help early — the cost of a professional is usually smaller than the penalties, ERP liens, and lost deal value of an ignored Class C.

Official sources

• HPD Online property search
• Housing Maintenance Code violations
• eCertification of violation corrections