The bill establishes regulations for detached accessory dwelling units (ADUs) outside urban growth areas in Washington State. It allows counties to permit these units under specific conditions, including limitations on the number of units per parcel, compliance with water supply and sewage system requirements, and restrictions on size and location relative to the principal dwelling. Additionally, if the ADU is offered as a short-term rental, the primary unit must be owner-occupied. The bill also mandates that counties implement code enforcement measures, including penalties for unpermitted units and a voluntary compliance process for owners.

Furthermore, the bill requires counties to track and report the number of ADU permits issued annually and to update their comprehensive land use plans to reflect the development of ADUs. It emphasizes that these regulations do not affect existing county ordinances regarding accessory dwelling units and allows for other methods of authorizing such units if they align with the act's provisions. The bill amends existing definitions related to accessory dwelling units to include the new regulations and clarify terms used throughout the legislation.

Statutes affected:
Original Bill: 36.70A.696