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HB 1345·WA·house

Establishing limitations on detached accessory dwelling units outside of urban growth areas.

EnactedFiled Jan 16, 2025
Sponsor: Sam Low (R)
Latest Action

Effective date 6/11/2026.

Mar 27, 2026

Summary

The bill allows counties to permit detached accessory dwelling units (DAUs) outside urban growth areas only if they meet a series of size, water, sewage, siting, and reporting requirements. It caps one DAU per parcel, limits its size, enforces water‑use rules, and imposes penalties for non‑compliance. Counties must also track DAU permits and limit how many can be built relative to rural population targets.

AI-generated summary — may be incomplete or inaccurate. Verify against the official bill text.

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