Table of Contents

• ADUs/JADUs AND THEIR BENEFITS
• QUICK OVERVIEW: TOWN ADU REQUIREMENTS
• QUICK OVERVIEW: HOW TO BUILD AN ADU/JADU IN TOWN
• FREQUENTLY ASKED QUESTIONS 
• CONTACT INFORMATION AND ADDITIONAL RESOURCES

CONTACT INFORMATION AND ADDITIONAL RESOURCES

Town of Portola Valley Planning & Building Department

765 Portola Road, Portola Valley, CA  94028

Building & Planning permit counter hours: M-F: 8 am to 12 pm

650-851-1700

For virtual appointments: http://www.portolavalley.net/virtualappointment

Portola Valley

• ADU Ordinance: https://library.municode.com/ca/portola_valley/codes/code_of_ordinances?nodeId=TIT18ZO_CH18.36USPEALDI_18.36.040ACUS

San Mateo County

• ADU Resource Center: https://smcadu.org/
• Pre-designed Plans

California Department of Housing and Community Development

• Accessory Dwelling Unit Handbook
• ADU Webpage

Housing Endowment and Regional Trust (HEART)- San Mateo County

• Green and Livable Accessible Dwelling Unit Resource (GLADUR)- FREE designs online for green, all-electric detached ADUs that can be downloaded by the public at no cost