Building Department
Building Official - Columbia County
114 S. 2nd Street
Dayton, WA 99328
Office Phone: 509.382.4676
Direct Line: 509.382.3941
The City of Dayton and Columbia County have entered into interlocal agreements for Planning, Building, Fire Marshal, and Code Compliance. In essence, through these contracts, Columbia County employees offer these services to the City of Dayton residents.
Building Permit Instructions & Application (.pdf)
