Accessory Dwelling Units (ADU's & JADU's)

Accessory Dwelling Units (ADUs) and Junior Accessory Dwelling Units (JADUs) are independent and semi-independent dwelling units with complete or partial provisions for sleeping, cooking, and sanitation permitted to be constructed on properties with existing or proposed single-family dwellings pursuant to State law – Government Code Section 65852.2 and 65852.22.  This eligibility screening by the Planning Division is to ensure compliance with ADU regulations prior to filling out a building permit application.

What are ADUs?

Accessory Dwelling Units (ADUs) have been known by many names: granny flats, in-law units, backyard cottages, secondary units and more. No matter what you call them, ADUs are an innovative, affordable, effective option for adding much-needed housing in California.

What are the benefits of ADUs?

  • ADUs are an affordable type of home to construct in California because they do not require paying for land, major new infrastructure, structured parking, or elevators.
  • ADUs can provide a source of income for homeowners, and apartment owners.
  • ADUs are built with cost-effective wood frame construction, which is significantly less costly than homes in new multifamily infill buildings.
  • ADUs allow extended families to be near one another while maintaining privacy.
  • ADUs can provide as much living space as many newly-built apartments and condominiums, and they’re suited well for couples, small families, friends, young people, and seniors.
  • ADUs give homeowners the flexibility to share independent living areas with family members and others, allowing seniors to age in place as they require more care.
  • ADUs are possible on parcels containing single-family and multi-family uses.

What are JADUs?

Junior Accessory Dwelling Units (JADUs) are allowed to be created within the walls of a proposed or existing single-family residence and shall contain no more than 500 square feet. JADUs offer additional housing options. They may share central systems, contain a basic kitchen utilizing small plug-in appliances, may share a bathroom with the primary dwelling, all to reduce development costs. JADUs present no additional stress on utility services or infrastructure because they simply repurpose existing space within the residence and do not expand the dwellings planned occupancy.


Development Services Department, Planning Division
 2nd Floor, City Hall
 3101 Center Street, Placerville, CA 95667
(530) 642-5252   :   email: pv.planning@gmail.com

updated: 12/2/2022