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

Planning & Building
Kim Lyonnais
Director Planning/Building

Greg Abramson
Senior Planner/Building Inspector

Meagan Bailey
Planner 1/Administration

114 S. Second Street
Dayton, WA  99328

Ph: (509) 382-4676
Fx: (509) 382-3125

Monday - Friday
7:00 am - 4:30 pm

8:30 am - 4:30 pm
The department oversees land use, zoning, the comprehensive plan, and environmental uses. The department also provides building services for the City of Dayton.

Planning Resources

Building Resources

We are continuously updating our website to better assist you. Please email or contact the Planning Director if you have questions regarding the Planning & Building Department website or comments on how we can make it better for you.

Ordinance 2011-001: Development Regulations
*This Ordinance does not reflect all current revisions and amendments. Please contact the Planning Director for further information.

Ordinance Text: Development Regulations

Ordinance Exhibit "A": Map 

Ordinance Exhibit "B": Section 8: Agriculture Zone(A-1)

Ordinance Exhibit "C": Section 11: Agriculture Residential Zone(AR-1)

Ordinance Exhibit "D": Section 14: Light Industrial Zone(LI-1)

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