Accessory Dwelling Units

Accessory Dwelling Units (ADU)

Accessory Dwelling Units (ADUs) are 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.

All ADU Permit applications submitted after May 1 shall conform to All-Electric Building Ordinance and include all-electric buildings only. Learn more about the All- Electric Building Ordinance (Link).

State Guidance for ADUs
Learn more about the State Law and Guidance for ADUs(Link)

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  1. Permit New ADU
  2. Permit Existing ADU

Planning Approvals

Building Permit Requirements

If you are thinking about making any improvements to your home or parcel, and you have a septic system, you need to have your plans reviewed by Environmental Health.
Learn more about Septic System permitting.