Thurston County, Washington

Presidents' Day - Monday, February 16

County facilities will be closed on Monday, February 16 in observance of Presidents' Day.

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.
County Contacts
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Thurston County Washington

Community Planning and Economic Development

Permitting Home

We issue building and land-use permits for properties located in unincorporated Thurston County. To learn more about the permitting process, click the “Plan Your Project” link below.

Intake appointments are required for applicants submitting a Type II or Type III application, applications requiring SEPA review, or those that require a Pre-submission Conference. For details and scheduling, click the “BDC Digest” link below.

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Related News

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NOTICE: Permitting Office Opens at 10 a.m., Friday, January 2

The county's permitting office, the Building Development Center (BDC), will open at 10 a.m. on Friday, January 2, 2026 for software update testing.

December 31, 2025

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Permit Fees are Getting an Update

Thurston County’s permitting base fees haven’t changed since 2009. But the cost of processing permits has with inflation and new state requirements. The fee update reflects the work involved and allows for an improved permit experience.

December 08, 2025

Announcements
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Attention: Builders, Septic & Construction Pros - New Permit Process Began on January 1

A new state law changed permitting timelines. To comply, the county has made changes.

January 29, 2025

Announcements, Events

Permitting Home

Permit Office Location - Building Development Center

3000 Pacific Ave SE
Suite 100
Olympia, WA 98501
Phone: 360-786-5490

Mailing Address

3000 Pacific Ave SE
Olympia, WA 98501