Accessory Dwelling Unit (ADU) FAQs and Helpful Links

An Accessory Dwelling Unit or ADU is an attached or detached residential dwelling unit that provides complete independent living facilities for one or more persons, is located on a parcel in conjunction with a proposed or existing principal residence and includes permanent provisions for living, sleeping, eating, cooking, and sanitation. An ADU may also include an efficiency unit or a manufactured home.

A JADU is a residential dwelling unit that is no more than 500 square feet in area, contained entirely within a proposed or existing single-family dwelling or attached garage, and can have bath/sanitation facilities that are either separate or shared with the existing single-family dwelling.

There are generally three types of ADUs:

  • Conversion of a garage or other accessory building into an ADU
  • Conversion of existing living area within your home into an ADU
  • A new attached or detached ADU

Up to one ADU and one JADU per lot developed with a single-family residence. Up to two detached ADUs are allowed on properties with multifamily units and up to 25% of the existing units in the multifamily building through conversion of existing non-habitable space. JADUs are not allowed on properties developed with multifamily dwellings or multiple single-family residences.

Attached ADU – An attached ADU can be built on any side of the house, but front and side setbacks apply.

Detached ADU – A detached ADU is generally constructed behind the primary residence, however due to existing conditions and site constraints, they may be permitted in other areas provided all development standards are met.

For ADUs, one parking space is required for newly constructed units unless the unit is:

  • Within 1/2 mile of public transit.
  • Created within the area of an existing building.
  • In a historic district.
  • Not offered an on-street parking permit when one is required.
  • On the same block as a car share.
  • A studio unit.

No parking is required for a JADU.

Yes, ADUs must have pedestrian access from the street.

Please check with your homeowners association. In general, HOAs cannot prohibit the construction of an ADU or JADU.

Examine the information provided for ADUs here.

Application review, permit, and development impact fees may be applicable to your ADU development project.  Please refer to the Planning Division fee schedule linked here.


Please see the ADU submittal process page here.

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