Yes. 17.70.030 Accessory apartment approval required.

A conditional use permit for an accessory apartment is required when an owner/resident begins to function as a landlord by renting demised space, as described in this chapter, within the residence to a tenant under the terms of a formal or informal rent or lease arrangement, which includes an obligation to pay rent. The following are not considered accessory apartment uses and do not fall under the regulation of this chapter: occupation by a live-in maid, in-home nurse, nanny or any other person or persons who are provided a place to live as part of their employment with, or services they provide to, the owner/resident of the dwelling; or while a family member is called up for military service, etc.; and any occupation by individuals related by blood or marriage.

All other accessory apartment uses are considered illegal unless a conditional use permit has been approved and issued. Accessory apartment uses that existed prior to the adoption of the ordinance codified in this chapter shall be considered illegal until approved by the planning director or planning commission.