The NYC Department of Buildings regulates the construction, alteration, and demolition of buildings across all five boroughs.
Last updated: March 2026 · 9.4M+ properties indexed
DOB is responsible for ensuring the safe and lawful use of buildings and properties in New York City. The agency:
RegWatch pulls DOB data including all violations (Class 1, 2, 3), active and historical permits, job filings, inspection results, Certificate of Occupancy records, and construction safety compliance data.
DOB violations can delay closings, trigger insurance issues, and indicate deferred maintenance. Open permits may signal unfinished or unpermitted work. The Certificate of Occupancy determines legal use — critical for any transaction.
RegWatch combines DOB data with HPD and ECB violations for a complete picture, cross-references permits with violations, and monitors buildings for new DOB activity.
DOB issues Class 1 (immediately hazardous), Class 2 (major), and Class 3 (non-hazardous) violations, plus ECB summonses for administrative enforcement.
Enter any NYC address into RegWatch to see all DOB violations alongside HPD and ECB violations in a unified view.
DOB NOW is the Department of Buildings' digital platform for permit applications, job filings, and inspections. RegWatch pulls data from both DOB NOW and the legacy BIS system.
DOB data in RegWatch is updated multiple times per day from official NYC Open Data feeds.
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