Accessory Dwelling Units (ADU) ORDINANCE


All ADU applications must be submitted via email

This page will be updated.


An accessory dwelling unit (ADU) is an attached or detached structure that provides independent living facilities for one or more persons and includes permanent provisions for living, sleeping, eating, cooking, and sanitation on the same parcel as a single-family dwelling unit. ADUs are sometimes referred to as secondary units, granny units, or in-law units. They can have a separate mailing address and be rented to a third-party or occupied by a property owner(s).  

On June 19, 2018 the City Council adopted new ADU regulations that apply to properties with single-family homes in all residential zones.  These new regulations went into effect on July 20, 2018.  Information from the City Council meetings can be found below:

Adopted Ordinance (Signed)
City Council 2nd Reading (Adoption) - June 19, 2018
City Council Introduction of Ordinance - Public Hearing - June 5, 2018

A planning application must be submitted for review by the Planning Division prior to submitting for a Building Permit (as part of Building Plan Check process) to ensure compliance with the zoning regulations.  


In 2017 and 2018, the State of California adopted a series of regulations for ADUs in all residential zoning districts in an effort to address growing housing demand and reducing affordability across California. These laws went into effect in all cities on January 1st each year:

 2017 2018
 Senate Bill (SB) 1069  Senate Bill (SB) 229
 Assembly Bill (AB) 2299 Assembly Bill (AB) 494

 The California Department of Housing and Community Development (HCD) has prepared an Accessory Dwelling Unit Memorandum Guide and contains more information on their website

For more information, please contact the Planning Division at (626) 308-2806 or  Planning staff is available to answer questions about ADUs from 8 a.m. - 4 p.m.