Single family residential permit process 

Apply for a single family permit

• Property research

  To better understand your property, do your research early. Check the jurisdiction and zoning to be sure it’s in unincorporated King County and understand what building or land use options you have based on your zoning. Start with our online tools to get the information you need for your application.

  • King County iMap
  • King County parcel viewer

  Make note of any special conditions on your property, such as...

  • Critical areas
  • Established clearing limits
  • Flood zones
  • Historically sensitive areas
  • Setback areas
  • Shorelines
  • Steep slopes
  • Total impervious lot coverage
  • Wetlands

  Confirm your zoning when doing research and understand what building or land use options you have by referencing:

  • King County Title 21A Zoning
• Prepare

   All single-family permits are available on the MyBuildingPermit website including:

  • Additions, remodels, decks, garages, and sheds
  • Mobile homes
  • New construction
  • Swimming pools
  • Mechanical
• Submit

  Submit your application online:

  MyBuildingPermit.com

• What to expect

  For most permit types you can expect the following after submitting your application online:

  • Confirmation email with your application identification number.
  • After your application is assigned, your submittal will go through the screening and triage processes. If there is any missing or incorrect information you will be notified at that time through the MyBuildingPermit.com portal. 
  • Examination of your submitted plans, by only the required Reviewers. 
  • Pay fees
  • Issuance
  • Inspections

  Note: Incorrect or incomplete application submittals will not be accepted and will delay your application process. 

  Through the MyBuildingPermit.com portal you can also:

  • View application status, invoices and payments
• Set up inspections

  We inspect work for code compliance and safety requirements.

  Schedule an inspection