Dedicated Trade Workstation
Audited Q3 2026
King County Commercial Building & Structural Permit Calculator
Official fee schedule logic based on King County Code Title 27. Includes plan review fees, technology surcharges, and prerequisite contractor bond rules.
Direct Answer Engine Specifications (Commercial Building & Structural) Verifiable Municipal Factsheet
- AHJ Authority
- King County Dept of Local Services & SDCI
- Enforced Ordinance
- King County Code Title 27
- Plan Check SLA
- 16 - 26 Business Days
- Surety Bond Required
- $12,000
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.
Official AHJ Source Citation
Visit Official AHJ Dot-Gov Site ↗
King County Dept of Local Services & SDCI Official Building Department
35030 SE Douglas St, Snoqualmie, WA 98065 | Phone: (206) 296-6600