About Us

Welcome to the County of San Mateo Planning and Building Department. Our mission is to plan and regulate land use and development within the county's unincorporated areas so that diverse and livable communities can thrive. We serve the County's residents, businesses, and visitors by preparing and administering land use plans and regulations and reviewing land use proposals to ensure they are consistent with those plans and regulations.

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New Stormwater Treatment Requirements Take Effect on July 1, 2023 Request for Information (RFI) for Automated Plan Review Services URGENT: Coastside Design Review Committee Seeks New Members Board of Supervisors County of San Mateo Notice of Public Meeting Regarding Mid-Coast Parks and Recreation Development Fee San Mateo County Public Review Draft 2023-2031 Housing Element Now Available
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Major Projects
North Fair Oaks Rezoning and General Plan Amendment Project & EIR

A Draft Environmental Impact Report (DEIR) for the North Fair Oaks Rezoning and General Plan Amendment Project is now available.

Sequoia Avenue Condominium Subdivision

The applicant is seeking a Major Subdivision to construct a new four-story, 23-unit residential condominium building.

Moss Beach State Route 1 Congestion & Safety Improvements Project

A project to study improvements along State Route 1 (SR-1) in Moss Beach.

San Mateo County Housing Element Update 2023-2031

San Mateo County is updating its Housing Element.

Zmay Minor Subdivision

Project Number PLN2014-00410 Contact Erica D. Adams, Project Planner (650) 363-1828

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Contact
Planning and Building Department – Main Office
455 County Center
2nd Floor
Redwood City, CA 94063Get Directions
Hours
Monday - Thursday:
8:00 am - 4:00 pm
(closed 12:00 pm - 1:00 pm for lunch)
Friday - Sunday:
Closed
Contact Information
Main Phone: (650) 363-4161 Planning Counter: (650) 363-1825 Building Inspection: (650) 599-7311 Code Compliance: (650) 363-4825 Automated Inspection Scheduling: (650) 295-3650 Email: plngbldg@smcgov.org

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