• Russian River Valley

    Preserving agricultural and open space lands

  • Business Brewery

    File a Business Property Statement

  • Vessel Property

    File a Vessel Property Statement

  • Horse Property Statements

    File a Horse Property Statement

Assessor Forms

Important Notice

Important Information 75x40The regular filing period for the 2021-22 annual assessment period is now openIf you feel your market value has declined, you may file an Application for Changed Assessment with the Clerk of the Assessment Appeals Board from July 2nd through November 30th

https://sonomacounty.ca.gov/Board-of-Supervisors/Assessment-Appeals/

Some forms have specific deadlines to file, others can be filed any time during the year or must be filed within a set number of days past an event.

If there is not a specific deadline listed below, please refer to the form instructions, information page, or contact our office for assistance.

Read more about important dates and deadlines

eFile Business Property Statements

eFile Your Property Statement

The Deadline to file Business Property Statements has passed.

Note: The deadline to file your 2021 Business Property Statement was May 7th at 5:00PM. We will mail the 2022 Notice to File Letters February 2022.

Clerk-Recorder-Assessor

Deva Marie Proto

County Clerk-Recorder-Assessor-Registrar of Voters

Office Hours

Monday – Tuesday
8:00 AM – 5:00 PM
Wednesday
8:00 AM – 4:00 PM
Thursday – Friday
8:00 AM – 5:00 PM

Note: Document processing and fee transactions end 30 minutes prior to closing

Contact us by Phone
Monday – Friday
9:00 AM – 4:00 PM
Address

Assessor's Office

585 Fiscal Drive
Room 104F
Santa Rosa, CA 95403
38.4659106, -122.7251807

Electronic Filing

Deadline to File Business Property Statements Has Passed

eFile Your Property Statement

The deadline was 5/7/2021. We will mail the 2022 Notice to File letters February 2022.

Assessment Appeals

Assessment Appeals Forms

Assessment Appeals Calculator

Assessment Appeals forms are available through the Assessment Appeals Board.

Property Value

Search Parcel Information

Sonoma County Property Value

Search current maps, parcel information, property values, change notices and more

Online Mapping

ActiveMap Viewer Collection
Access location-based information pertaining to a specific subject and/or area within unincorporated Sonoma County.

Fire Rebuild Operations

Active Scams

Read About Current Scams

Scam Alert!

Active scams for services that are offered at our office for low or no cost!

Important Notice

Important Information 75x40The staff of the Clerk-Recorder-Assessor's Office are forbidden by California legal codes to practice law or provide legal advice; this prohibition includes giving advice about what forms you might need or how you should fill them out.