Accessory Dwelling Ordinance


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What is an ADU? | Benefits of an ADU | Previous Meetings | Contact

Update:  City Council Adopts Accessory Dwelling Unit Ordinance

On December 7, 2015, the City Council adopted the Accessory Dwelling Unit (ADU) Ordinance.  The new rules are effective on January 7, 2016.  Please be sure to check back for updates.

New ADU Requirements & Resources

Pre-Application Consultations*

City staff is now accepting pre-application consultations to help homeowners navigate the new design requirements.

  • Counter Hours:  8AM-5PM, Monday-Friday (walk-ins welcome)
  • Planning Services:  (650) 780-7234 (ask to speak with the Planner-on-Duty)
  • Email:

*NOTE:  Building Permit applications for ADUs will not be accepted until the new ADU requirements become effective on January 7, 2016, unless the proposed ADU complies with the current ADU requirements.

What is an Accessory Dwelling Unit?

An Accessory Dwelling Unit (ADU) is a smaller living unit on a property that has a single-family residence. It is complete with its own kitchen and bathroom facilities.  Common names for an ADU include in-law unit, secondary unit, and backyard cottage.

Benefits of an ADU

  • Extra living space for family or guests
  • Housing for aging parents, caregivers or adult children
  • Efficient use of existing infrastructure
  • Rental income

Previous Meetings

December 7, 2015

October 26, 2015

October 6, 2015

September 2, 2014

July 9, 2014

July 1, 2014


Michelle Littlefield
Project Planner
(650) 780-7238

PC Notice 10.06.15