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January 8, 2026·2 min read

Understanding NYC DOB Violations: A Complete Guide

The NYC Department of Buildings issues violations for a wide range of building code infractions. Understanding the types, severity, and resolution process is essential for property owners and anyone conducting due diligence.

Types of DOB Violations

DOB Violations (Class 1, 2, and 3)

  • Class 1 — Immediately hazardous. Structural instability, missing fire escapes, blocked egress. Penalties up to $25,000.
  • Class 2 — Major but not immediately life-threatening. Illegal conversions, unpermitted work. Penalties up to $10,000.
  • Class 3 — Non-hazardous, typically administrative. Missing signage, record-keeping issues. Penalties up to $2,500.

ECB Violations

Many DOB violations are adjudicated through the Environmental Control Board (ECB). ECB violations carry specific fines and require a hearing or default payment. Unpaid ECB fines can become judgment liens against the property.

Common DOB Violations

  • Work without a permit
  • Failure to maintain — façade issues, elevator maintenance
  • Illegal conversion — using space inconsistently with the C of O
  • Construction not conforming to plans
  • Failure to comply with DOB order

How Violations Affect Transactions

  • Title issues — ECB judgment liens appear on title searches
  • Closing delays — buyers may require resolution before closing
  • Insurance complications — Class 1 violations affect coverage
  • Reduced value — extensive violation history suggests deferred maintenance

Resolving DOB Violations

  1. Correct the underlying condition
  2. Obtain required permits if applicable
  3. Request DOB re-inspection
  4. Pay ECB fines
  5. File Certificate of Correction

Monitoring with RegWatch

RegWatch aggregates DOB, HPD, and ECB violations into a single view. Portfolio monitoring alerts you to new violations and status changes — so you can respond proactively.

Related Resources

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Understanding NYC DOB Violations: A Complete | RegWatch