Spokane Home Addition Permits 2026
Spokane home addition permit fees, plan review, and required inspections for 2026.
Spokane Home Addition permit basics
- Building department: City of Spokane Development Services Center
- Department URL: https://my.spokanecity.org/business/
- Permit fee typical: $400 - $3,500 permit fee
- Plan review + approval: commonly 2 to 5 business days for residential inspections
- Inspections required: 6-12 inspections (footing, framing, electrical, plumbing, mechanical, insulation, drywall, final)
Spokane Home Addition common issues
Setback compliance, FAR (floor-area ratio), structural review required, sewer/water capacity may need upgrade.
Spokane-specific permitting context
Spokane runs permits through the shared Accela system at aca.spokanepermits.org, with the Development Services Center on the third floor of City Hall at 808 W Spokane Falls Blvd. Washington has no state income tax but enforces a Labor and Industries electrical permit and inspection program separate from city building permits.
Climate factors: A cold semi-arid inland Northwest climate with snowy winters, hot dry summers, and hard freezes that make heating capacity, insulation, and freeze-resistant plumbing central to trade work.
Washington licensing for Home Addition contractors
Washington Department of Labor and Industries (L&I) - required: $117 (initial) + $12K bond + insurance. Board: https://www.lni.wa.gov.
Mechanics lien deadline in Washington: 90 days from last work. Preliminary notice: Pre-claim notice required within 60 days of first furnishing for residential.
Spokane Home Addition sales tax
Washington sales tax: 6.5% + local (~9.3% combined avg) + 0.471% B&O. WASHINGTON TAXES CONTRACTOR LABOR. Retail Sales Tax applies to total construction contract (labor + materials) on speculative builders. Custom construction taxed differently.
Verify with the Washington Department of Revenue.
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