Contra Costa County Assessment Appeals
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This department handles all disputes between property owners and the Assessor's Office. Cases are decided by the Assessment Appeals Board, a body appointed by the Board of Supervisors.
651 Pine St, Martinez, CA 94553
- Fax: 401-385-9320
- Fax: 925-335-1913
- Hours: Mon - Fri, 8:30am - 5pm; Sat, Sun, closed
- Hours: Mon - Fri, 8am - 5pm