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Thurston County, Washington

Community Planning and Economic Development

You have options for submitting permit application packets and forms to Thurston County.

In Person - NEW LOCATION - 3000 Pacific Ave SE in Olympia

  • Building Development Center (BDC) office - 1st floor, Suite 100 of the new county location at 3000 Pacific Ave SE, in Olympia, Washington. (BDC is no longer at the County Courthouse).
  • Most applications must be submitted in person at the BDC between 8 a.m. - 4 p.m.
  • Staff check applications for completeness and let you know right away if something is missing.
  • Be prepared to pay by cash, check, or credit card (2.35% transaction fee applies).


  • Only available for the items listed below.
  • A county Permit Technician will contact you for credit card payment. (2.35% credit card transaction fee applies). 
  • Email Minor Permit types below to 
    • Minor Permit Applications for Residential Structures
    • Time of Transfers
    • Refund Requests
    • Extension and Withdraw Requests  
  • Email Septic Record Drawing Requests to
  • Email Drainage Record Drawings to


  • All application types may be submitted by mail to:
  • Thurston County Building Development Center, 3000 Pacific Ave SE, Olympia, WA  98501