Diamond Bar, CA · Los Angeles County

No notary required

Business License Application for Commercial Locations

Businesses use this application to request a Diamond Bar business license, report business and owner information, and provide background-check details when required.

What this form is

The Community Development Department application is for businesses seeking a license in Diamond Bar, including new businesses, renewals, and changes to a business location, name, or ownership. It asks for business contact and activity details, employee count, and owner signatures; certain business types must also complete the background-check section. The form notes that some applications require zoning clearance.

Who needs it

Business owners applying for a Diamond Bar business license, renewing one, or reporting a listed business change should complete this application.

How to submit it

Submit the application to the Community Development Department at 21810 Copley Drive, Diamond Bar, CA 91765. The form lists (909) 839-7030 and www.DiamondBarCA.gov for the department.

About notarization

This application is signed without a notary; the signer dates the application and any required background-check authorization, and the form lists no notarized attachment.

How to submit this form

  1. 1

    Download The Application

    Download the Business License Application for commercial locations.

  2. 2

    Complete The Application

    Provide business details, select the applicable business or license-change category, and sign and date the application.

  3. 3

    Complete Required Background-Check Details

    If your business type is listed, complete the background-check information and authorization for each applicant.

  4. 4

    Submit To The City

    Submit the application to the Community Development Department at 21810 Copley Drive, Diamond Bar, CA 91765.

Frequently asked questions

Do I need a notary for the Business License Application?
No. The application has signature and date fields but no notary block. Sign and date the application and, if required, the background-check authorization.
How do I submit the Business License Application?
Submit it to the Community Development Department at 21810 Copley Drive, Diamond Bar, CA 91765. The form also lists the department phone number and city website.
Who should complete this application?
Businesses applying for a license, renewing a license, or reporting a change of location, business name, or ownership should use the application.
Which businesses must complete the background-check section?
The form lists business types that require a background-check investigation, including bars and nightclubs, massage establishments, and tow trucks and towing companies.

Need something notarized?

This Business License Application for Commercial Locations doesn’t need a notary — but if you have another Diamond Bar form that does, a commissioned online notary can help.