Summary
Operating as a licensed general contractor in Seattle requires compliance with both Washington State and City of Seattle regulations. Contractors must obtain a state contractor license through the Department of Labor & Industries, which involves passing exams and meeting experience requirements, plus register for a Seattle business license. The permit process through Seattle Department of Construction and Inspections can be complex and time-consuming, requiring detailed plans and multiple inspections. Insurance and bonding requirements are substantial, including state-mandated workers' compensation, liability coverage, and contractor bonds. Seattle's robust regulatory environment, combined with high construction costs and competitive market conditions, means successful contractors must maintain strict compliance standards while managing significant upfront costs. Regular license renewals, continuing education, and staying current with frequently changing local building codes are essential for maintaining good standing in this jurisdiction.
License Requirements
General contractors in Seattle must obtain a Washington State Contractor License through the Washington State Department of Labor & Industries (L&I). For projects over $1,000, contractors need either a General Contractor license or a Specialty Contractor license depending on the work scope. The licensing requires passing a business and law exam, a trade exam, and meeting experience requirements (4 years journeyman experience or equivalent). Licenses must be renewed every two years with continuing education requirements. Additionally, contractors must register with Seattle's Business License Division and obtain a Seattle Business License.
Permit Requirements
Building permits are required through the Seattle Department of Construction and Inspections (SDCI) for most construction projects including structural changes, additions, new construction, and renovations exceeding $4,000. Permit applications can be submitted online through the Seattle Services Portal or in-person. Typical timelines range from 3-6 weeks for residential permits and 6-12 weeks for commercial projects. Permit fees vary by project scope, typically ranging from $200-$2,000 for residential work and $1,000-$10,000+ for commercial projects. Plans must be prepared by licensed professionals for projects over certain thresholds.
Insurance Requirements
Washington State requires general contractors to carry minimum liability insurance of $50,000 property damage and $200,000 per occurrence. Workers' compensation insurance is mandatory for all employees through L&I. Contractors must also obtain a contractor's bond - minimum $12,000 for General Contractor licenses, with higher amounts required based on the contractor's registration level (up to $60,000). Many clients and projects require additional commercial general liability coverage of $1-2 million per occurrence.
Typical Cost Ranges
Typical general contracting project costs in Seattle: Kitchen remodels $25,000-$75,000, bathroom remodels $15,000-$40,000, home additions $150-$300 per square foot, whole house renovations $100,000-$500,000, new single-family construction $350-$600 per square foot, and commercial tenant improvements $50-$200 per square foot. Seattle's high labor costs and material expenses due to transportation and local regulations typically result in costs 15-25% above national averages.
Compliance Checklist
- ✓Obtain Washington State General Contractor License through L&I
- ✓Register for Seattle Business License with the City of Seattle
- ✓Secure required liability insurance and workers' compensation coverage
- ✓Obtain contractor's bond meeting state minimum requirements
- ✓Apply for specific building permits through SDCI before starting work
- ✓Ensure all subcontractors are properly licensed and insured
- ✓Register with Washington State Department of Revenue for tax obligations
- ✓Complete required continuing education for license renewal