To add or change a contractor on an existing San Francisco building permit, you need to notify the Department of Building InspectionPermit Services – Central Permit Bureau, 1660 Mission Street, San Francisco, CA 94103.

You will need to tell the Department of Building Inspection:

  • The building permit application number
  • Job address
  • The name of the new contractor with:
    • A current California State Contractor License number and expiration date
    • Valid San Francisco Business Tax Registration Certificate number and expiration date
    • Current California Worker’s Compensation Certificate


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