Shed permit rules in Spokane, WA — also referred to as storage shed, backyard shed, or accessory building regulations — set size limits, setbacks, and when a building permit is required.
Sheds under 200 sq ft in Spokane are exempt from building permits per WA State Building Code and IRC R105.2. Setbacks still apply: typically 5 feet from side and rear property lines in residential zones.
Washington State Building Code (IRC Section R105.2) adopted by Spokane exempts one-story accessory buildings used as tool sheds, playhouses, or similar structures under 200 square feet from building permit requirements. However, zoning setbacks, height limits, and lot coverage rules still apply under SMC Title 17C. Residential zones typically require 5-foot setbacks from side and rear property lines and 20 feet from front property line, though corner lots and specific zones vary. Maximum shed height is commonly 15 feet. Electrical or plumbing in any shed requires permits regardless of size. Sheds over 200 sq ft require building permits with foundation, framing, and sometimes energy code compliance. Sheds in the floodplain near the Spokane River or Hangman Creek must meet FEMA elevation requirements. HOA rules may add further restrictions.
Setback or size violations: stop-work, removal, or permit-after-the-fact with fees. Electrical work without permit: immediate correction and fines.
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See how Spokane's shed rules rules stack up against other locations.
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