NYC Building Complaints Lookup: Free HPD, DOB & 311 Guide (2026)

Yes. All HPD violations, 311 complaints, DOB records, and ACRIS property records are public and searchable online through NYC government websites. Anyone can look up any building's complaint history without needing to be a tenant, owner, or attorney. This transparency is a unique strength of NYC's housing oversight — most US cities don't publish building violation data this openly.

HPD violation records go back to the late 1980s for many buildings, with complete data from around 2000. 311 complaint data is available from 2010 onward through NYC Open Data. DOB building records vary by building age but generally go back to the 1990s for electronic records, with paper records available for older structures through a records request. ACRIS deed records go back to 1966 for most properties.

HPD Class A violations are non-hazardous conditions (peeling non-lead paint, minor cracks, missing mailbox locks) with a 90-day correction deadline. Class B violations are hazardous (broken stove, inadequate lighting, leaks, mice) and must be corrected within 30 days. Class C violations are immediately hazardous (no heat in winter, lead paint with children under 6, gas leaks, inadequate fire egress) and must be corrected within 24 hours. Multiple open Class C violations on a building are a major red flag and may indicate enrollment in the Alternative Enforcement Program.

Each HPD violation record includes: the class (A/B/C), violation code (e.g., HMC 27-2029 = no heat), description (plain-language summary), issue date, certification deadline, and current status (open, closed, dismissed). Focus on: (1) open status, (2) certification deadline passed without correction, (3) same violation recurring year after year. These three patterns indicate a non-responsive landlord, not just a building with normal wear and tear.

No. It is illegal under NYC Human Rights Law to retaliate against prospective tenants for asking about building conditions, violations, or complaint history. If a landlord refuses to answer or reacts defensively, that itself is a signal about how they will handle your repair requests as a tenant. A landlord with nothing to hide has no reason to resist basic due diligence questions.

Document everything immediately. If there are serious habitability issues (no heat in winter, chronic pest infestations, lead paint, or unaddressed Class C violations), you may have grounds to break the lease under NYC's warranty of habitability, or to withhold rent and place it in escrow pending repairs. Contact Met Council on Housing at (212) 979-0611 for free legal advice, or JustFix (justfix.org) for self-help tools. Housing Court also offers HP actions (Housing Part) for compelling repairs without an attorney.

Context matters — older buildings naturally accumulate more history than new construction. Focus on three things: (1) open vs. closed violations — closed violations show the landlord eventually addresses issues, open violations suggest neglect, (2) recurring patterns — the same heat or pest complaints every year indicates chronic underlying problems, not one-time issues, and (3) resolution speed — a building with 10 violations closed within 60 days is healthier than one with 5 violations open for 6+ months. A building with 20+ open violations is a significant red flag; 50+ suggests enrollment in the Alternative Enforcement Program.

The Alternative Enforcement Program is HPD's watchlist of the 250 worst-maintained buildings in NYC, updated annually. Buildings with the highest combined counts of Class B and C violations per unit are selected. AEP buildings receive quarterly inspections, targeted code enforcement, and public listing — avoid renting in any AEP building. The list is published each February at nyc.gov/hpd and searchable by address.

Yes. Both 311 complaints and HPD complaints can be filed anonymously, and the landlord cannot legally retaliate for any complaint (anonymous or not). However, for HPD inspections to enter a specific apartment, an inspector needs access from a resident — so complete anonymity is harder for unit-specific issues like leaks or pests inside your own apartment. Common-area issues (hallway lighting, lobby mold, exterior repairs) can be fully anonymized because inspection happens from public spaces.

HPD performs three types of inspections: (1) complaint-driven inspections triggered when tenants file HPD or 311 complaints (typically within 1-7 days for emergencies, 14-30 days for non-emergencies), (2) proactive inspections of AEP buildings (quarterly at minimum), and (3) targeted sweeps of high-violation neighborhoods. Non-AEP buildings without active complaints may not see an HPD inspector for years, which is why tenant-initiated complaints matter.

NYC Local Law 69 requires every landlord to file an annual Bedbug Report disclosing any bedbug infestations in the previous year. These reports are publicly searchable through HPD Online under the "Bedbug" tab for each building. Before signing any NYC lease, you are legally entitled to request the building's most recent bedbug history disclosure from your landlord — they must provide it in writing within a reasonable timeframe.

The landlord will learn that a complaint exists (the inspector contacts the managing agent or owner when investigating), but 311 does not share the complainant's identity unless you explicitly consent. Landlords cannot legally retaliate for 311 complaints — NYC Real Property Law 223-b prohibits retaliatory rent increases, lease non-renewal, or service reductions within 12 months of a complaint. Keep documentation of the complaint and any landlord reactions.

For urgent issues (no heat, gas leaks, raw sewage), call 311 directly — this triggers the fastest HPD response. For non-urgent issues (mice, minor leaks, peeling paint), file online at portal.311.nyc.gov and select the appropriate category. To report code violations directly to HPD, use HPD Online's complaint form. For structural or construction-related issues, file with DOB at a810-dobnow.nyc.gov. Keep a record of your complaint number for follow-up.

A DOB vacate order is issued when the Department of Buildings determines a building is unsafe to occupy — usually due to structural failure, fire damage, or illegal conversions. Vacate orders are serious: tenants in a vacated building may be forced to leave with limited notice. Before signing any lease, check DOB BIS (a810-bisweb.nyc.gov) for active vacate orders against the address. Any vacate order, even partial, is a deal-breaker.

NYC Open Data refreshes at different cadences depending on the dataset. 311 service requests update daily. HPD violations and complaints update within 24-48 hours of filing. DOB violations and permits update within 2-3 business days. ACRIS document records update within 24 hours of recording. NYPD crime data updates weekly. DwellCheck pulls the most recent available snapshots on every query.

DwellCheck aggregates 15+ free NYC government data sources but adds meaningful value on top: (1) address normalization and geocoding so any address format matches the right records, (2) walking-radius analysis for neighborhood context (not just the building itself), (3) violation severity scoring that weights Class C and recency appropriately, (4) pattern detection for chronic vs. one-time issues, and (5) side-by-side comparison to neighborhood and borough baselines. The raw data is free; the analysis saves 2-3 hours per address.