About Us
Welcome to the San Mateo County Planning and Building Department website. The Planning and Building Department's mission is to plan and regulate land use and development within the unincorporated areas of the County so that diverse and livable communities can thrive. We serve the County's residents, businesses, and visitors through the preparation and administration of land use plans and regulations, and by reviewing land use proposals to ensure they are consistent with those plans and regulations.
Contact Us
Building
buildingcounter@smcgov.org
Code Compliance
codecomplaint@smcgov.org
Planning
PlanningProjects@smcgov.org


