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.

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Major Projects
San Mateo County Housing Element Update 2023-2031

San Mateo County is updating its Housing Element to include assessments of the County’s housing need over the next eight years, policies and programs to address that need, and identification of available locations for housing development.

Palmer Lane General Plan Map and Zoning Map Amendments, Subdivision and Grading

Project Number PLN2018-00271 Location 501 Palmer Lane, North Fair Oaks

Zmay Minor Subdivision

Project Number PLN2014-00410 Review Period Saturday, April 7, 2018 to Monday, May 7, 2018 Contact Erica D. Adams, Project Planner (650) 363-1828

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