Assessed Value Look-Up
You can look up your Property Assessment, Parcel Map, and even your Property Taxes by visiting the Property Search Page.
Property assessed on the Unsecured tax roll: If you are inquiring about business property, boats or aircraft assessed on the Unsecured roll, please see Business Personal Property.
Disclaimer Notice
The data, information, and maps provided herein are derived from various sources and are dynamic and in an ongoing state of maintenance, correction and update, and are subject to verification by the user and/or Alameda County. The mapped data depicted herein does not constitute a legal survey. The County of Alameda makes no warranty, representation or guarantee as to the content, accuracy, timeliness or completeness of any of the information implied herein. The County of Alameda explicitly disclaims any representation and warranties, including, without limitation, the implied warranties of merchantability and fitness for a particular purpose.
Reviews and Appeals
If you believe that “Current Assessment” total is higher than your property’s market value as of January 1, there are two ways to dispute the assessed value:
- Informal review by the Assessor’s Office, or
- Assessment Appeal
Informal Review
You may request an informal review between July 1 and December 31. There is no cost for this service. An appraiser will review the assessment and market value of your property, and determine whether it should be reduced. Due to staffing and workload issues, this may take several months. You will be notified of the results.
If the Assessor’s Office determines a reduction is appropriate, then a roll change will be processed. If you disagree with the outcome of the review and November 30 has not passed, you can file an assessment appeal. See below for appeal filing information.
You must still pay any property tax bills timely to avoid penalties, pending outcome of the review.
For more information, call (510) 272-3787.
Decline in Market Value Informal Request Form
Assessment Appeal
($50 filing fee)
Filing period is July 2 through September 15. Contact the Clerk of the Board, Assessment Appeals Board at 1221 Oak Street, Room 536, Oakland, CA 94612, call (510) 272-6352 or visit the Appeals Board web site.
You must still pay any property tax bills timely to avoid penalties, pending outcome of the appeal.