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Review Your Value

Request a FREE Informal Value Review from the Assessor's Office

  • Commercial/Apartments - Request for Value Review (PDF)
  • Residential/Multi-Family - Request for Value Review (PDF)
  • Vessel Value Review Questionnaire (PDF)
  • Aircraft Value Review Questionnaire (PDF)

What is a Proposition 8 Decline in Market Value? (PDF)

Appealing Your Property Assessment (PDF)

Filing a Formal Assessment Appeal – Understanding the Process. VIDEO "New!"

Assessment Appeals Board Contact Information

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    1. The Seal of Contra costa County California

    1. Contact Us: Public Information Contacts   Media Inquiries   Contact Webmaster 
                           
      County Administration Building:         
      1025 Escobar Street, Martinez, CA 94553
      1st Floor:  Clerk of the Board
      2nd Floor:  Human Resources
      3rd Floor:  County Counsel
      4th Floor:  County Administration

      For all other County departments and offices, see their web pages.

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