Accessory Structures in Edmonds, WA (2026)
3 verified accessory structures rules for Edmonds, Washington, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Edmonds City Council adopted an ADU code update on June 11, 2024, complying with state HB 1337. Up to 2 ADUs (attached and/or detached) are allowed per single-family lot. Maximum ADU size: 1,200 sq ft. Maximum height: 24 ft. No owner-occupancy requirement. Impact fees capped at 50% of principal unit. Building permit required.
Edmonds ADU Rules & Accessory Dwelling Unit Regulations
Some RestrictionsShed Rules
Sheds and detached accessory structures in Edmonds must comply with ECDC zoning setbacks and the Washington State Building Code (WAC 51-50). Permit requirements depend on size; small structures under 200 sq ft may be exempt from a full building permit but still must meet setback requirements.
Edmonds Shed Rules & Outbuilding Regulations
Some RestrictionsGarage Conversions
Garage conversions to living space or ADUs require a building permit under WAC 51-50 and ECDC. Conversions must meet all applicable zoning, energy code, and habitability standards. HB 1337 (2023) facilitates garage-to-ADU conversions with relaxed requirements for impact fees and design.
Edmonds Garage Conversion Rules & Requirements
Some RestrictionsLooking for Snohomish County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Edmonds city rules.
Accessory Structures in Snohomish County →