What are the Commercial Building & Structural permit rules in Washington?

Washington enforces trade permit fee schedules determined by local AHJ building departments per county. General contractors and sub-trades must maintain active state licenses and bond filings ($10,000–$50,000).

Are sub-trade contractor surety bonds required in Washington?

Yes. Most Washington municipal building departments require trade contractors to file an active license bond prior to permit issuance.

🏗️ STATEWIDE TRADE HUB (WA) 1 County Workstations

Washington Commercial Building & Structural Permit Guide

Building valuation schedules, structural PE stamps, and plan review add-on rates. Compare municipal fee structures, plan check add-on rates, and contractor bond thresholds across Washington.

Washington Commercial Building & Structural County Workstations

Select a county building department to calculate exact trade permit fees & bond rules

King County

King County Dept of Local Services & SDCI

2026 Verified

Plan Review Rate: 80%

Tech Surcharge: 5%

Mandatory Surety Bond: $12,000

Open King County Commercial Building & Structural Workstation →