2026 REQUEST FOR VALUE REVIEW (PROP 8) California State Revenue and Taxation Code, Section 51 authorizes the Assessor to temporarily lower the assessed value of any real property when it is greater than the market value as of January 1, lien date.
If you own and occupy your home as your principal place of residence on January 1, you may apply for an exemption of $7,000 off your assessed value for an annual savings of approximately $70 on your property taxes. New property owners will automatically receive an exemption application.
A: If your incident is an emergency, call 9-1-1. If it is a non-emergency, call (925) 646-2441.
Please email Contra Costa County Communications Director Kristi Jourdan at Kristi.Jourdan@contracostatv or call 925-313-1180 if you need assistance finding the right department or person.
If you have a question or a complaint, always try your cable company first. Comcast may be reached at (800) 945-2288, or the Comcast/Xfinity website Astound may be reached at (800) 427-8686 or the Astound/Wave website. and AT&T U-verse may be reached at (800) 288-2020 or the AT&T website.
If it is a non-emergency, call (925) 646-2441.
Customer Service telephone operations are from AM to PM on weekdays, and from AM to PM on Saturday – (925) 676-7500.