ADU is a dwelling unit with a full kitchen and bathroom, which is an accessory use to a primary or main single family residence. The ADU can be used as a rental, but cannot be sold separately from the primary or main single family residence. The existing residence must be a legally established structure.
On January 1, 2017, new State laws took effect that create new opportunities for accessory dwelling units (also known as ADUs, “backyard homes,” or “granny flats”). The Department of Regional Planning released an Interim Policy memo on how to regulate requests for accessory dwelling units until the County updates its ADU ordinance. The memo includes basic regulations for ADUs. Once an ordinance is approved and adopted in accordance with State law, this memo will no longer be in effect.