A violation issued by the Department of Buildings for non-compliance with the NYC Building Code or construction regulations.
Last updated: March 2026 · 9.4M+ properties indexed
DOB violations come in three classes based on severity. Class 1 violations are immediately hazardous and carry the highest penalties. Common DOB violations include work without a permit, failure to maintain, illegal conversions, and construction not conforming to approved plans.
Class 1 = immediately hazardous (up to $25K). Class 2 = major (up to $10K). Class 3 = non-hazardous (up to $2.5K).
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