How to Check HPD Violations in NYC

To check HPD violations for any NYC building, enter the address at 311tracker.com — it's free, no account needed, and shows every open and historical violation alongside 311 complaint history and rodent inspection results in one place.

• HPD violations are public record — every open violation is searchable by address citywide
• 311tracker shows three violation classes: Class A (non-hazardous, 90-day fix), Class B (hazardous, 30 days), and Class C (immediately hazardous, 24 hours)
• You can also check via NYC's official HPD Online portal at hpdonline.nyc.gov — violations only, no complaint history
• Before renting: open Class C violations are the highest red flag — they signal conditions requiring emergency correction that the landlord may be ignoring

For a deeper look at how HPD handles complaints, read our guide to HPD's closure practices.