Assessment Appeals
Every year, at the Alameda County Assessor's Office, we make every effort to consider declines in value and to assess all property at the lessor of market value (as of January 1) or factored base value each year on a proactive basis.
You will receive an Assessment Notice by mail by the end of July each year. You can also look up your assessed value, parcel map, and property taxes anytime using the link HERE.
Disagree with the Assessment? Start with a Free Informal Review
If you disagree with your property's assessed value, you have two options to try to lower the assessment.
✅ Option 1: Request an Informal Review (Free)
Please keep in mind that you are not required to accept the results of the Informal Review.
If you still disagree, you can file a formal Assessment Appeal Application with the Clerk, Assessments Appeal Board.
✅ Option 2: File a Formal Appeal - For information on how to obtain and complete an application, call (510) 272-6352 or visit the Clerk's website
- Filing Period: July 2 – September 15
- Fee: $50
Please note that a formal appeal can take up to two years to get resolved.
What Happens After You File? Once a timely appeal is filed, here's what happens next. - The Clerk of the Board sends the application to the Assessor's Office, where the Assessor's Office will assign an appraiser
- The appraiser will request supporting documents from the applicant (this is called a 441D request)
- After receiving and reviewing the information, the appraiser will make their valuation.
- The appraiser may reach out to try to resolve the appeal without a formal hearing
If no agreement is reached, a hearing will be scheduled. You'll get at least 45 days' notice before your hearing date.
What to Expect at the Hearing The Assessment Appeals Board (AAB) is a three-member panel that reviews all evidence presented by the property owner and the Assessor's Office at the formal hearing. The AAB acts in a quasi-judicial capacity and renders its decision only based on proper evidence presented at the hearing.
After the hearing, the board will determine the full value. Need Help Preparing for the hearing? For specific guidance on the assessment appeals process and how to prepare, check out these resources:
For more information on filing a formal appeal, see the Board of Equalization's Appeal Guide and visit their website here. |
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