Seattle, Washington · Deck Building
Deck Builder in Bothell
Bothell prices building permits from the project's value, so the number on your deck contract shapes the permit fee. Trees are the other thing that trips up backyard projects here, because a deck footprint often reaches into a tree's space. Below are the city rules to check before you plan the layout.
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Typical price in Seattle: Composite deck, installed$40–$75 per sq ft of deckSource: 5 Seattle-area contractor price pages, price data from September 17, 2026
Good to know in Bothell
- Source: City of Bothell
A lowball number on the application won't lower a Bothell permit fee. The city takes the cost you submit or its standard valuation calculation, whichever is higher, as the project value, so budget from the realistic figure.
- Source: City of Bothell
When you add up permit costs in Bothell, include the 5% technology surcharge the city puts on most permit fees.
- Source: City of Bothell
Taking out a tree to make room for a deck? Bothell generally does not require a tree permit when, among other conditions, the lot is less than 20,000 square feet and there are no critical areas such as wetlands, streams or steep slopes greater than a 40% grade. Settle that with a city planner before the layout is final.
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