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Columbia County
341 E. Main St.
Dayton, WA 99328

Application Forms
Columbia County Planning and Building  oversees building permits and inspections for Columbia County, the City of Dayton, the Town of Waitsburg, the Town of Starbuck, and Garfield County. If you cannot find what you are looking for, please contact our office at (509) 382-4676.

Planning and Building FAQs

We accept checks or exact cash. Please make checks payable to the Columbia County Treasurer.

Check your permit fees here:

Building Fee Schedule
Planning Fee Schedule

Building Permit Applications
Click here for permit applications

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