Webif you feel that your property value is less than the assessor’s value, you have the right to appeal that value to your local assessment appeals board by filing an assessment. Webyou should check regular assessment if you are appealing the market value as of the preceding january 1st. The filing period for the regular assessment is between july. Webthe office of the assessor is dedicated to preparing fair and equitable assessments to all taxable property in san joaquin county. The county assessor has a constitutional. Webowners of manufactured homes subject to property taxation are eligible for the same exemptions and exclusions as real property owners.