Download and complete one form per permit for each job site. The form is in PDF format, can be filled out electronically and saved.This page will help you successfully submit an application for a building or grading permit. Our goal is to help you get your permit as quickly as possible. Per Business and Professions. This form is essential for applicants seeking building permits in Marin County. It ensures proper application handling and compliance with county regulations. How to fill out the Contra Costa County Building Permit Application? Find the best construction attorney serving Contra Costa County. Contra Costa ADU Requirements: Explore the latest laws, permits, design standards, and financial aspects of building ADUs in CA.