Clayton, CA · Contra Costa County
Building Permit Application Form
Property owners, contractors, and authorized agents use this application to request a building permit and provide project, property, and declaration details.
What this form is
Use this application to request a building permit for work at a listed project address. It asks for applicant, owner, design professional, and contractor information; a detailed scope of work; and grading details. Applicants also complete applicable contractor or owner-builder, workers’ compensation, and construction lending agency declarations, then sign and date the application.
Who needs it
Property owners, contractors, or authorized agents seeking a building permit for a project in Clayton should complete this application.
How to submit it
The form lists the Contra Costa County Department of Conservation and Development Application and Permit Center, 30 Muir Rd., Martinez, CA 94553, and the Lamorinda Office, 3685 Mt. Diablo Blvd., Suite 120, Lafayette, CA 94549.
About notarization
This application has no notary block; the signer signs and dates it, including declarations made under penalty of perjury.
How to submit this form
- 1
Download The Application
Download the Building Permit Application Form.
- 2
Complete The Form
Enter the project address, applicant and property details, scope of work, grading information, and applicable declarations.
- 3
Review And Sign
Complete the applicable contractor or owner-builder, workers’ compensation, and lending agency sections, then sign and date the application.
- 4
Submit To The County
Submit the completed application to an office listed on the form: the Application and Permit Center in Martinez or the Lamorinda Office in Lafayette.
Frequently asked questions
- Do I need a notary for the Building Permit Application?
- No. This application has no notary block; the signer signs and dates it, including declarations made under penalty of perjury.
- Who completes the Building Permit Application?
- A property owner, contractor, or authorized agent requesting a building permit can complete the application. It asks for project details and applicable declarations.
- How do I submit the Building Permit Application?
- The form lists the Contra Costa County Department of Conservation and Development Application and Permit Center in Martinez and its Lamorinda Office in Lafayette.