Business Hours: Monday through Friday, 8 a.m. to 5 p.m., excluding Holidays
Limited Services Available

Effective October 1, 2020, the County Clerk-Recorder Division will reopen to the public on an appointment only basis.

The Registration & Elections Division is open to the public.

The Assessor Division is not open to the public. Appraisal Services staff will be working remotely, and essential services will continue to be available on a limited basis. The public is encouraged to utilize the website, phone systems, emails and online Live Chat to obtain information and services.

Detailed information on operating hours, contact phone numbers and email addresses may be found on the page for each Division as follows:



General Information:
Appraisal Services: 650.363.4000 (extension 1227)
Change in Ownership: 650.363.4000 (extension 1743)
Exemptions & Address changes: 650.363.4000 (extension 4771)
Business Personal Property Valuation:
Business Property: 650.363.4000 (extension 4501)


Registration & Elections

The Registration & Elections Division at 40 Tower Road is open to the public. Hours are Monday through Friday, 8 a.m. to 5 p.m. Appointments for non-voting related matters are recommended. A face covering is required, and social distancing will be enforced. 

Phone or text: 650.312.5222



Assessor-County Clerk-Recorder

Registration & Elections


City or Town Hall Locations in San Mateo County
Addresses, Phone Numbers and Websites

South San Francisco
City Hall
400 Grand Avenue, South San Francisco, CA 94083

Town Hall
2955 Woodside Road, Woodside, CA 94062