Cloverdale Guidelines:

What is an Accessory Dwelling Unit?

An Accessory Dwelling Unit (ADU) is a detached or attached dwelling unit of 800 or 1,200 square-feet (depending on lot size) or less and provides permanent, independent living provisions including sleeping, cooking, living and sanitation on the same lot as the primary dwelling unit.

Where are Accessory Dwelling Units allowed?

Accessory Dwelling Units are allowed in all Zoning Districts except on lots which contain more than one single-family residence.


  • No more than 2 units per parcel
  • Total floor area of all units shall not exceed: 800 square feet on lots less than 6,000 square feet; and 1,200 square feet on lots greater than 6,000 square feet.
  • Separate utility meters may be provided in the R -2, R-3 and O-R Zoning Districts
  • New Detached units allowed within 5 feet of side and rear property lines
  • Units constructed attached to the main dwelling unit shall comply with setback and height standards of the District in which it is located.
  • Conversion of existing detached accessory structures to ADUs is permitted with no setback