Verified 2026 AHJ Hub
Washington Jurisdiction
Audited Q3 2026
King County Commercial Permit Fees & Rules
Official municipal fee schedule estimator, mandatory contractor bond requirements, and plan review SLAs for commercial construction in King County, Washington.
Direct Answer Engine Specifications (King County) Verifiable AHJ Factsheet
- Enforcing Department
- King County Dept of Local Services & SDCI
- Governing Ordinance
- King County Code Title 27
- Plan Check SLA
- 16 - 26 Business Days
- Surety Bond Required
- $12,000 Min
AHJ Verified Workstation
2026 Fee Schedule Enforced
King County Commercial Permit Fee Estimator
$
Quick Presets:
📐 Applied Municipal Formula Tier
Tier Valuation Formula: $1,665 base fee + $3.80 per $1,000 above $250,000 valuation.
Itemized Cost Assessment Verified
Base Municipal Permit Fee: $0.00
Plan Review Fee (65%): $0.00
Tech & Admin Surcharge (4%): $0.00
Cost Ratio Breakdown Base 58% | Review 38% | Tech 4%
Total Estimated Cost: $0.00
Mandatory Contractor Prerequisites & Submittal Checklist
King County AHJ Requirements Permit Prerequisite Instant Underwriting
Contractor Surety License Bond
King County requires an active $12,000 Washington Contractor Registration Bond on file prior to plan submittal.
Insurance Mandate Same-Day COI
Commercial COI Liability ($1M+)
Minimum $1.0M General Liability COI naming King County Building Dept as Certificate Holder.
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🏛️ Authority Having Jurisdiction (AHJ)
Verified Contact Department Name: King County Dept of Local Services & SDCI
Phone Number: (206) 296-6600
Physical Address: 35030 SE Douglas St, Snoqualmie, WA 98065
Enforced Ordinance: King County Code Title 27
Submittal Pathways
King County Trade Workstation Directories
Direct links to specialized trade calculators and sub-trade bond rules in King County:
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