All individuals and businesses doing work within city limits, whether or not they have a physical structure in the city, are required to have a business license. This includes contractors, internet and home-based businesses. Business license holders must display their license in public view at all times.

Exemptions: Non-profits and certain businesses are exempt from paying fees under the Constitution of the United States or under the Constitution or laws of the State of California but must still register with the CityLicenses may also be obtained in-person at City Hall during regular business hours.

Contact Information
909.839.7030
planning@diamondbarca.gov

Additional agencies you may want to contact regarding your business: