Thurston County, Washington

The content on the Thurston County website is currently provided in English. We are providing the “Translation” for approximately 10 languages. The goal of the translation is to provide visitors with limited English proficiency to access information on the website in other languages. The translations do not translate all types of documents, and it may not give you an exact translation all the time. The translations are made through an automated process, which may not result in accurate or precise translations, particularly of technical and legal terminology.
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Thurston County Washington

Attention: Builders, Septic & Construction Pros - New Permit Process Starts January 1

December 2, 2024
image of a person filling out permitting checklist

A new state law reduces permitting timelines. To comply, we’re making changes: 

  • Application packets must be complete to be accepted. Submittal checked at counter before intake. Previously the county accepted incomplete packets as a courtesy to our customers. 
  • Completed Critical Areas Determination (CAD) required before any building or septic. Exceptions may apply. Email us at planning@co.thurston.wa or visit the Permit office Monday - Friday from 8-4 to ask about your project.
  • New forms & checklists available now for submissions after Dec 31. Find them on the applications and forms webpage.
  • Find more details about this change, and subscribe to our Permit email list on The Building Development Center (BDC) Digest page.
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