Official Forms for Viewing and Downloading. Please select the type of format you would like to receive the final data report.Check all that apply. Finally, review your application before submission to ensure all sections are complete. We have various applications and forms available on our web site for your convenience. All forms are printable and downloadable. Contra Costa FBN Fillable. How to fill out the Contra Costa County Building Permit Application? These forms are centrally triaged weekly.