County instructions for Assessor parcel information, value notices and maps, with separate third-party and ActiveMap options. Name searches are unavailable; ActiveMap’s listed zoning and land-use details apply to unincorporated areas.
Sonoma County formal appeal application and hearing resources. An appeal addresses the specific assessment and enrolled year; another year may require another application.
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.
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
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.
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.
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
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.
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.
Official property-office map referral: Interactive Maps
Interactive Maps
Agent source review: October 26, 2026 · Snapshot 5ebf107059cf3ca1
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.