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Permitting services are available online via this website and For details and information about our new location and office hours, see our Customer Service Bulletin.

For new construction, and additions/alterations to existing buildings, including commercial tenant improvements

What requires a permit?


Property Research

Check jurisdiction and zoning to determine whether your property is located in unincorporated King County or is located within city limits.

Find your jurisdiction

step 2

Schedule a pre-application meeting

Pre-application meetings are held between a prospective permit applicant and Permitting Department staff before a permit application is filed.

Pre-application meeting packet

step 3

Download application materials

Find and download the application materials that align to your project on our permit application forms listed by packet page, including the following:

  • Commercial Construction
  • Commercial Tenant Improvements
  • Commercial Signs
  • Commercial Cellular Communication Facilities
  • Commercial, Mechanical - available on

You can also pick up materials at our Snoqualmie office, or have them mailed to you by calling 206-296-6600 or emailing

step 4

Plan Review

King County will preform a review of the application to ensure code compliance and safety requirements.

step 5


King County inspects work to ensure code compliance and safety requirements.




Full listings of all Permitting forms and information sheets

    Department of Local Services, Permitting Division


    35030 SE Douglas Street, Suite 210
    Snoqualmie, WA 98065-9266

    Mon, Tues, Thur, Fri:
    7:30-11:30 am & 1:00-3:00 pm

    Wednesday: Closed