All Washington permits
A filterable directory of Washington state permits. Find the ones you actually need, with step-by-step guidance for each.
SEPA Environmental Review
State Environmental Policy Act (SEPA) review identifies and evaluates environmental impacts of proposed government actions, including private developments needing approval.
Hydraulic Project Approval
Required for any work that uses, diverts, obstructs, or changes the natural flow or bed of state waters to protect fish life.
Forest Practices Permit
Required for timber harvest, road construction, or reforestation on forestland to protect water, soil, fish, wildlife, and public resources.
Sign Permit
Required to install, alter, or relocate a commercial sign to ensure it meets size, height, lighting, and placement standards for the zoning district.
Short Subdivision Permit
Allows the division of land into a small number of lots (typically up to four) that meet minimum lot size and frontage standards for the zoning district.
Residential Building Permit
Required to construct, alter, or repair a single-family home or accessory structure. Covers structural, mechanical, plumbing, and electrical work.
Shoreline Substantial Development Permit
Required for substantial development within shoreline jurisdiction (200 feet of the ordinary high water mark) on marine, lake, and river shorelines in Washington.
Food Service Establishment Permit
Required to operate any establishment that prepares, serves, or sells food to the public, ensuring compliance with food safety standards.
Water Right Permit
Required to withdraw and beneficially use surface water or groundwater beyond the permit-exempt threshold for irrigation, commercial, or multi-home use.
Driveway Access Permit
Required to construct or modify a driveway connecting private property to a public roadway, ensuring safe sight distance and drainage.
Washington State Business License
A master business license registers your business with the state and combines multiple city and state endorsements into a single application and renewal.
Conditional Use Permit
Allows a use that is not permitted outright in a zoning district but is conditionally allowed subject to review and specific conditions to protect neighboring properties.