Sebastopol ADU Checklist and Standards

Sebastopol encourages Accessory Dwelling units, which can provide needed infill rental housing in existing neighborhoods, or provide the opportunity for family members to live on the same property with their relatives.

There are development standards, review procedures, permits, and fee requirements associated with creating a new dwelling unit that you should be aware of as part of your consideration of whether to undertake development of an Accessory dwelling unit.

Accessory Units can be developed in a number of ways: by building an entirely new residence that is separate from the existing house; by converting an accessory structure such as a garage; by adding on to an existing house; or by remodeling the interior of an existing house, including conversion of qualifying attics and basements.

One accessory unit can be allowed on any single family home property, provided standards are met.

Accessory Dwelling Unit permit processing changed in early 2017 in response to new State law. Please read this information thoroughly. Speak with the Planning Department before you prepare construction documents to make sure an Accessory Unit is possible on your site. There are development standards, review procedures, permits and fee requirements associated with creating a new dwelling unit that you should be aware of as part of your consideration of whether to undertake development of an accessory dwelling unit. Permit application are available at the Building Department. Be sure to review submittal requirements–incomplete applications will not be accepted or processed.

Sebastopol ADU Checklist