California: is comparing your assessment with similar homes a recognized appeal ground?
Not recognized in California, as FairPath last reviewed the state's published sources on 2026-08-02.
FairPath's summary of the state's published basis (California): Locally assessed real property carries a Proposition 13 base-year value set at change in ownership or completed new construction, so similar homes are lawfully assessed on different bases. A regular appeal compares the enrolled value with current market value on the lien date; a neighbor's assessment is not a ground.
This is FairPath's summary of what the state's published sources say, not a quotation. The sources below carry the state's own wording; read them before relying on this.
Source: California State Board of Equalization, Residential Property Assessment Appeals (Publication 30), https://www.boe.ca.gov/proptaxes/pdf/pub30.pdf. Reviewed 2026-08-02.
Source: California State Board of Equalization, California Property Tax: An Overview (Publication 29), https://boe.ca.gov/proptaxes/pdf/pub29.pdf. Reviewed 2026-08-02.
FairPath summarizes what the state's published sources say and links them so the reader can verify. The current assessment notice, the county's own instructions, and the responsible authority control what a specific appeal may raise.
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