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Property and assessment in California

Assessed values, parcels and assessment appeals.

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Property taxation, recorded documents and zoning involve different agencies.

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10 reviewed links · Mariposa

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Mariposa, California

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Maps and property information — query and counter access (opens in a new tab)

County instructions for parcel-number or address searches, APN maps, ownership information and the public counter. Parcels without an address require an APN; map and recorded-document copies may carry fees.

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Mariposa County official service / referred provider · Mariposa — property query (opens in a new tab)

County property lookup — Maps and property information — query and counter access

These search tools allow you to search by either assessor's parcel number (APN) or by street address.

Agent source review: October 15, 2026 · Snapshot ab215748491c7d76

Appeal an assessment to the Board of Equalization (opens in a new tab)

Mariposa County formal appeal application, filing fee and Clerk contact. The former Assessment Appeals Board was dissolved; the Board of Supervisors now sits as the Board of Equalization.

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Mariposa County · Mariposa — assessment appeals information (opens in a new tab)

Assessment appeals — Appeal an assessment to the Board of Equalization

With its dissolution, the Board of Supervisors now sits as the Board of Equalization.

Agent source review: October 15, 2026 · Snapshot bea031c62ce6ebef

Homeowners’ exemption: state guidance and local assessor filing (opens in a new tab)

Shared California state guidance. Follow the official programme conditions and the responsible county’s instructions; this entry does not establish individual eligibility or confirm an active local auction.

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California State Board of Equalization · Homeowners exemption (opens in a new tab)

Homeowners’ exemption: state guidance and local assessor filing

To claim the exemption, the homeowner must make a one-time filing with the county assessor where the property is located. The claim form, BOE-266, Claim for Homeowners' Property Tax Exemption, is available from the county assessor.

Agent source review: October 26, 2026 · Snapshot 79662b9866706681

Proposition 19: transfer rules and filing checklists (opens in a new tab)

Shared California state guidance. Follow the official programme conditions and the responsible county’s instructions; this entry does not establish individual eligibility or confirm an active local auction.

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California State Board of Equalization · Proposition 19 (opens in a new tab)

Proposition 19: transfer rules and filing checklists

Proposition 19 – The Home Protection for Seniors, Severely Disabled, Families, and Victims of Wildfire or Natural Disasters Act

Agent source review: October 26, 2026 · Snapshot 4947db3f55d8ab99

Supplemental assessments and separate tax bills (opens in a new tab)

Shared California state guidance. Follow the official programme conditions and the responsible county’s instructions; this entry does not establish individual eligibility or confirm an active local auction.

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California State Board of Equalization · Supplemental assessments (opens in a new tab)

Supplemental assessments and separate tax bills

The supplemental roll provides a mechanism for placing property subject to Proposition 13 reappraisals due to change in ownership or completed new construction into immediate effect. Changes in ownership or completed new construction are referred to as 'supplemental events' and result in supplemental tax bills that are in addition to the annual property tax bill.

Agent source review: October 26, 2026 · Snapshot 76813228503f6709

APN Map Viewer (opens in a new tab)

Officially linked county property-map resource. This verifies the referral and stated label; interactive layers, parcel results, legal boundaries, buildability and application eligibility are not determined here.

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Mariposa County official service / referred provider · Mariposa — property query (opens in a new tab)

Official property-office map referral: APN Map Viewer

APN Map Viewer

Agent source review: October 26, 2026 · Snapshot ab215748491c7d76

APN Map Viewer (opens in a new tab)

Officially linked county property-map resource. This verifies the referral and stated label; interactive layers, parcel results, legal boundaries, buildability and application eligibility are not determined here.

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Source & saved evidence

Mariposa County official service / referred provider · Mariposa — property query (opens in a new tab)

Official property-office map referral: APN Map Viewer

APN Map Viewer

Agent source review: October 26, 2026 · Snapshot ab215748491c7d76

GIS (Mapping) (opens in a new tab)

Officially linked county property-map resource. This verifies the referral and stated label; interactive layers, parcel results, legal boundaries, buildability and application eligibility are not determined here.

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Mariposa County official service / referred provider · Mariposa — property query (opens in a new tab)

Official property-office map referral: GIS (Mapping)

GIS (Mapping)

Agent source review: October 26, 2026 · Snapshot ab215748491c7d76

Official state service profiles

These 0 profiles are classified under this topic by California’s official state service directory. The county filter above does not establish local eligibility for them. Confirm availability and requirements on the official profile.

No state-directory profiles mapped to this topic. This does not mean no state service exists.