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

Planning and Building
Kim Lyonnais
Building Official/Planning Director

Greg Abramson
Senior Planner/Building Inspector

Meagan Bailey
Planner 1/Administration

114 S. Second Street
Dayton, WA  99328

Ph: (509) 382-4676

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

Columbia County Planning and Building oversees land use, zoning, the comprehensive plan, and environmental uses. The department also provides building services for Columbia County, the City of Dayton, the City of Waitsburg, the City of Starbuck, and Garfield County. 

Planning Resources

Building Resources

We are continuously updating our website to better assist you. Please email or contact Meagan Bailey at if you have questions regarding the Planning and Building Department website or if you have any comments on how we can make this website more useful 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)

News and Announcements
2017 Preliminary Budget Review
The Board of Commissioners have scheduled 2017 Budget reviews for Tuesday, October 25th thru Thursday, October 27th. Please see the attached agenda for further information. Read on...
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