Contact, Location, and Hours

Department of Conservation and Development


30 Muir Road
Martinez, CA 94553
Map to Martinez Office


Main Phone: 925-655-2774
TTY: 711
Toll Free: 1-855-323-2626
Application and Permit Center: 925-655-2700
Contact Us - Online Form


Monday - Thursday, 7:30 a.m. to 5:00 p.m.
Friday, 7:30 a.m. to 4:00 p.m.

Services Offered:

Our Lamorinda Office has been officially closed as of 3/1/2023.

  1. City Planning Contacts
  2. Office Closure Schedule
  3. Online Forms

Review the Planning and Building permit guidelines for your construction project within the following cities:

City of Clayton

6000 Heritage Trail
Clayton, CA 94517
Phone: 925-673-7300
City of Clayton Planning Website

City of Hercules

111 Civic Drive
Hercules, CA 94547
Phone: 510-799-8251
Fax: 510-799-8249
City of Hercules Planning Website

City of Lafayette

3675 Mount Diablo Boulevard Ste. 210
Lafayette, CA 94549
Phone: 925-284-1976
Fax: 925-284-1122
City of Lafayette Planning Website

Town of Moraga

329 Rheem Boulevard
Moraga, CA 94556
Phone: 925-888-7040
Fax: 925-376-5203
Town of Moraga Website

City of Orinda

22 Orinda Way
Orinda, CA 94563
Phone: 925-253-4210
Fax: 925-253-7719
City of Orinda Planning Website