Bill > SB6029

This bill establishes limitations on detached accessory dwelling units (ADUs) outside of urban growth areas in Washington. It allows counties to permit detached ADUs in rural areas if they adopt development regulations that include specific restrictions, such as limiting each parcel to one attached or detached ADU, ensuring adequate water and septic systems, and capping the size of the detached ADU. The bill also prohibits new primary dwelling units built after the effective date of the bill from having a detached ADU. Additionally, the bill allows counties to adopt regulations for detached ADUs that are substantially similar to those in effect as of January 1, 2024, in a county with a population exceeding 2 million.