The Assessment Roll is a public document that lists property values and location information for all taxable real estate, business property and personal property in the county. Information displayed here is current as of the most recently published Assessment Roll and parcel maps are updated monthly.
Since August 2011, all Assessed Value Change Notices and Prop 8 Notices have been available primarily through this website.
Information Available With This Search
- Assessor Parcel Number
- Assessment Roll Data
- Assessed Value Change Notices
- Prop 8 Notices
- Assessor Parcel Maps (TIFF format)
Note: If you are having difficulty viewing maps in the TIFF format, please use the ParcelQuest search to view a PDF version of the map.
Assessor Parcel Number Lookup
Enter the property address or the first part of the address.
Value Change Notices and Prop 8 Notices
Search your property by using either a partial address or parcel number then click the "View/Print Value Notice" link at the top of the property information page to view and/or print your notice.
As a cost savings measure, the Assessed Value Change Notices and Prop 8 Notices will no longer be mailed through the U.S. Postal Services unless specifically requested.
To protect your privacy, we do not display party name information in the results of any searches you perform via this web site. California Government Code section 6254.21 prohibits the display of home addresses or telephone numbers of any elected or appointed official on the Internet by any state or local agency without first obtaining the written permission of that individual.
To comply with the statute, property searches are allowed by parcel identification numbers and address. Searches by name are not available and the search results will not include owner name. We are sorry for any inconvenience this may cause.
[California Government Code section 6254.21]
This service has been provided to allow easy access and a visual display of County Assessment information. All reasonable effort has been made to ensure the accuracy of the data provided; nevertheless, the data may be out of date and is for assessment purposes only. No liability is assumed for the accuracy of the data. Do not make any business decisions based on this data before validating the data with the Sonoma County Clerk-Recorder-Assessor's Office The County of Sonoma assumes no responsibility arising from use of this information. Associated Data Are Provided Without Warranty of Any Kind, either expressed or implied, including but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
[California Revenue and Taxation Code section 408.3(d)]