The bill addresses the affordable housing shortage in Washington State's urban growth areas by promoting the development of accessory dwelling units (ADUs). It aims to streamline local regulations that may impede the economic feasibility of ADUs, encouraging local governments to adopt programs that incentivize their development for long-term housing. The legislation emphasizes enhancing housing density, supporting multigenerational living, and reducing intergenerational poverty through increased home ownership. Additionally, it amends existing laws related to comprehensive planning, requiring local plans to analyze housing needs across various income levels and types, while also considering potential racially disparate impacts and displacement.

Furthermore, the bill clarifies that concurrency requirements for transportation facilities do not apply to those of statewide significance, with specific exceptions for island counties. It updates the timeframe for traffic forecasts and financing plans and mandates that local jurisdictions adopt ordinances to prevent development approval that would decline service levels on transportation facilities. Importantly, the bill prohibits cities and counties from restricting ADU construction on residentially zoned lots within urban growth areas, sets conditions for local regulation of ADUs, and protects homeowners from civil liability related to restrictive covenants that conflict with the bill's provisions.

Statutes affected:
Original Bill: 36.70A.130, 36.70A.697, 36.70A.698