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Community Development 

San Mateo City Hall
330 West 20th Avenue
San Mateo, CA 94403

The Department of Community Development (CDD) has broad responsibilities focused on long-range planning, review of applications for new development, maintenance of neighborhoods, code enforcement, and planning.

Five divisions work together to accomplish these goals and all division offices are located at City Hall:
  • CDD Administration
  • Building Safety
  • Code Enforcement
  • Neighborhood Improvement and Housing
  • Planning

Administrative Office 

(650) 522-7200

(650) 522-7201

(650) 522-7172

(650) 522-7171

Plan check services are available Monday - Friday from 9:30am - 11:30am at building counter.

Counter hours:
  • Monday: 8:00am - 5:00pm
  • Tuesday: 8:00am - 5:00pm 
  • Wednesday: 8:00am - 5:00pm 
  • Thursday*: 9:00am - 5:00pm 
  • Friday: 8:00am - 5:00pm

*Counter is closed on Thursdays from 8:00am-9:00am.

The Public Counter is closed from 4:00pm - 5:00pm Monday through Friday except for resubmittals and information. Transactions involving payments will not be processed.

Code Enforcement 

(650) 522-7150

(650) 522-7221

To report a CODE VIOLATION call (650) 522-7150.

Neighborhood Improvement and Housing 

(650) 522-7220

(650) 522-7221

Planning Division 

(650) 522-7202

Planners are available at the counter during the following business hours or you may phone the Planner on duty at (650) 522-7212. Please note that your call will be returned by 5:00 p.m. the next business day. You can also email the Planning Division at .   For immediate service please come see us at City Hall.

Monday: 8:00 am - 5:00 pm
Tuesday: 12:30 pm - 5:00 pm *
Wednesday - Friday 8:00 am - 5:00 pm

* The Planning Counter is closed on Tuesday mornings from 8:00 am - 12:30 pm for staff meeting.

NOTE:  The Public Service Counter is closed from 4:00 p.m. - 5:00 p.m. Monday - Friday except for resubmittals and information requests.  Submittals of new planning applications and requests for neighborhood mailing labels will not be processed during this hour.

San Mateo City Hall – 330 West 20th Avenue, San Mateo, CA 94403

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