Permitting Requirements for Pole Barns in Washington

Understanding permitting requirements is one of the most confusing aspects of building a pole barn in Washington. With no statewide building code, requirements vary dramatically between counties and municipalities. This guide breaks down everything you need to know.

When Do You Need a Permit?

In most Washington jurisdictions, you need a permit for: Any building over 120 square feetElectrical workPlumbing installationsBuildings within city limits or urban growth areasBuildings in subdivisions with HOA requirements

Common Permit Requirements

Most Washington jurisdictions require: Engineered building drawings and calculationsSite plan showing building location, setbacks, and drainageFoundation design (may require engineer stamp)Electrical plan (if including electric service)Wind load calculations for your specific location

The Permit Process Timeline

Typical permitting timeline in Washington: Submit application: Day 1Plan review: 2-8 weeks (varies by jurisdiction)Permit issuance: Once approvedInspections: Foundation, framing, electrical, final

How ProBuilt Metal Buildings Helps

We provide engineered drawings and calculations with every building, specifically designed for Washington building codes. Our team has experience working with counties across the state and can help guide you through the permit process. We'll even provide a foundation plan to submit with your permit application.