330 West 20th Avenue
San Mateo, CA 94403
Phone:(650) 522-7172
Fax:(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.