In Spokane, a building permit is required for any deck that is 30 inches or more above grade at any point, and for any deck attached to the house regardless of height. The city's own 2022 Prescriptive Deck Construction Guide sets this threshold. Ground-level freestanding platforms under 30 inches may be exempt, but attached structures trigger the permit requirement at any height.
Spokane's 2022 deck construction code uses 30 inches above grade as the main trigger for a building permit on freestanding decks. A deck surface that reaches or exceeds 30 inches off the ground at any point requires a permit, engineered footings, and a final inspection before the deck is considered complete. This threshold exists because a fall from 30 inches or higher carries real injury risk, and the permit process ensures the structure is framed and footed to hold that elevation safely. On most South Hill and Five Mile Prairie lots, any deck that reaches the main floor level will exceed this threshold.
If a deck is attached to the house, a permit is required regardless of height. The ledger connection to the house carries structural loads that need to be reviewed, and incorrect ledger attachment is one of the most common causes of deck failures. Spokane's permitting process covers the ledger design as part of the standard deck review. Homeowners sometimes try to avoid the permit on low attached decks, which creates a resale problem when a buyer's inspector finds an unpermitted structure attached to the house.
Building a deck without a required permit in Spokane can result in a stop-work order, a requirement to tear out and rebuild the structure after inspection, and complications at resale when a buyer's inspector finds an unpermitted addition. Homeowner insurance policies can also exclude coverage for unpermitted structures. The permit fee for a residential deck in Spokane runs $300 to $800, which is a small cost relative to the risk of leaving the structure unpermitted.
We pull the permit, prepare the drawings, and submit them to the city as part of every deck build we do. The city typically reviews residential deck permits in one to two weeks. Once approved, we start framing. At the end of the project, we schedule the final inspection with the city inspector, who confirms the framing, footing depth, railing height, and baluster spacing all meet the 2022 code requirements. You do not need to contact the city directly.
Replacing surface boards on an existing permitted deck without changing the frame does not typically require a new permit. Structural work (replacing posts, beams, ledger, or footings) does require a permit. We let you know at the estimate which category your project falls into.
Spokane residential deck permits typically run $300 to $800, calculated as a percentage of the project valuation. We include this in our written estimate so there are no surprise fees later.
Standard residential deck permits in Spokane are typically reviewed in one to two weeks. We submit complete drawings to avoid back-and-forth with the city, which keeps the review on the shorter end of that range.
That is between your neighbor and the city. We only pull permits for our own work. If you are buying a home with an unpermitted deck, a real estate attorney can advise you on disclosure requirements and how to resolve the permit status before closing.
We built this operation around one idea: a deck is a structural investment, not a cosmetic one, and it deserves the same care you would put into any other part of your home. We work across Spokane, South Hill, Five Mile Prairie, Mead, and the Spokane Valley. Every build gets a permit, pressure-treated or composite framing rated for the Pacific Northwest, and a final inspection before we call the job done. We give you a flat written estimate after the site visit and we stand behind the work with a workmanship warranty.
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