Image of the Rolling Hills in Livermore.

Contact Us

NOTE: OUR PUBLIC COUNTERS ARE NOW OPEN. PLEASE CONSIDER CALLING OR EMAILING US AHEAD OF TIME AS MANY ISSUES CAN BE RESOLVED BY PHONE OR EMAIL.

Our business hours are from 8:30 AM to 5:00 PM Monday through Friday except for holidays. 

Feel free to email us anytime at AssessorWebResponse@acgov.org. If your questions are specific to Business Personal Property, please email AssessorBPP@acgov.org. We will respond to you in a timely manner.

If you have an urgent matter that requires an in-person meeting with our staff, please click here to be directed to our in-office appointment request form. We encourage you to CALL or EMAIL our Office before requesting an in-person visit, as many issues can be resolved with a phone call or email message. 

 

Office Section Phone Number Fax Number Email
Assessor’s Office – Public Inquiry 1221 Oak Street, Room 145, Oakland CA, 94612 (510) 272-3787 (510) 272-3803 AssessorWebResponse@acgov.org
Business Personal Property Office Located at: 125 12th Street, Suite 320, Oakland CA, 94607 (510) 272-3836 (510) 891-5542 AssessorBPP@acgov.org
Assessment Roll (510) 272-3800 ARoll@acgov.org 
Exemptions – Homeowners (510) 272-3770 (510) 272-3803 AssessorWebResponse@acgov.org
Exemptions – Other (510) 272-6587 (510) 272-3803 Exemptions@acgov.org 
Mapping (510) 208-4878 N/A N/A
South County Toll-Free (800) 660-7725 (510) 272-3803 N/A

Our Office Leadership

Attention!A Message About Our Public Counters

The Assessor’s Office is open to the public and is providing appointments for in-office visits. Please visit our Contact page for more information.

Please note that our technicians remain available to provide assistance via telephone (510-272-3787) from 8:30AM-5:00PM Monday through Friday.

If you need to drop-off documents, please leave them in the box provided outside our Office and staff will retrieve them promptly to protect confidentiality.

We sincerely appreciate your understanding and patience during this time.