2018 Seattle Code Adoption - Project Documents

We update construction codes to ensure that people in Seattle get to live, work and play in buildings that are safe, sustainable, and accessible.
  • What & Why
    Proposing potential changes for Seattle’s 2018 construction codes.
  • Get Involved
    Proposing potential changes for Seattle’s 2018 construction codes.
  • Project Documents
    Proposing potential changes for Seattle’s 2018 construction codes.
  • Timeline
    Proposing potential changes for Seattle’s 2018 construction codes.

2018 Seattle Codes Available for Purchase

The 2018 Seattle construction codes are now available for purchase through the International Code Council as a bookmarked pdf copy that you can download. 

You can order printed copies of the Seattle construction codes and errata through SDCI. View our publication list for prices. To order, please submit a request through the Seattle Services Portal using the Permits - Trade, Construction and Land Use option. See How to Purchase Seattle Code Books From SDCI for instructions on how to submit your request.

Read only versions of the Seattle construction codes and errata are available on the code webpages.

Summary of Changes

2018 Seattle Construction Code Key Changes

2018 Errata