California Welfare and Institutions Code > Welf. & Inst. Code§5116. Residential Home for Six or Fewer Persons with Mental Health Disorders or Other Disabilities or Dependent and Neglected Children is Residential Use of Property
(a) Pursuant to the policy stated in Section 5115, a state-authorized, certified, or licensed family care home, foster home, or group home serving six or fewer persons with mental health disorders or other disabilities or dependent and neglected children, shall be considered a residential use of property for the purposes of zoning if the homes provide care on a 24-hour-a-day basis.
(b) These homes shall be a permitted use in all residential zones, including, but not limited to, residential zones for single-family dwellings.