The bill aims to streamline the subdivision process within urban growth areas in Washington State by amending existing laws related to subdivisions and short subdivisions. It introduces new definitions, including "parent lot," "unit lot," and "unit lot subdivision," which clarify the subdivision of residential lots into smaller unit lots. The bill also establishes that unit lot subdivisions must adhere to the development standards applicable to the parent lot at the time of application, even if individual unit lots may later become nonconforming. Additionally, it mandates that by June 30, 2026, all unit lot subdivisions must notify purchasers of their legal status.

Furthermore, the bill requires cities, towns, and counties to adopt regulations for the summary approval of short plats and short subdivisions, ensuring that these processes consider safety features for students walking to school. It emphasizes the need for clear and objective design standards and outlines specific procedural requirements for unit lot subdivisions, including the placement of informational notes on the plat and the integration of these procedures with existing development projects. The legislation also sets deadlines for compliance, requiring cities and towns to implement these changes within specified timeframes.

Statutes affected:
Original Bill: 58.17.020, 58.17.060
Engrossed Bill: 58.17.020, 58.17.060
Bill as Passed Legislature: 58.17.020, 58.17.060
Session Law: 58.17.020, 58.17.060