What can be built or done to my property?
What type of structures and uses are allowed on individual properties depends on what zoning district the property is located in. If the site is located in the unincorporated area, planning staff can determine the zoning district upon request if you visit the Application & Permit Center or call (925) 674-7200

Before visiting or calling, make sure you have the specific Assessor’s Parcel Number (APN), also referred to as the Property Tax Number, or address for the site.

Planning & Land Use

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1. How high can I build my fence and/or retaining wall?
2. Do my neighbors need a tree permit to remove a tree? When do they need a permit and what is the process and timeline involved?
3. How do I start a Home Occupation?
4. What can be built or done to my property?
5. Where can I get a copy of the parcel map?
6. What type of structures do not require a permit?
7. How long does the permit process take?
8. Where can I obtain information on gas, water, or sanitation lines on my property?
9. What is green building and where can I find more information about green homes?
10. When is a permit required from Building Inspection?