SDCI is in the process of updating Seattle’s construction codes to the 2018 versions of the building, residential, existing buildings, fire, electrical, mechanical, energy, fuel gas, elevator, boiler, and plumbing codes. Due to many factors, including the impacts of the COVID-19, the 2018 Washington State Construction Codes effective date has been delayed. SDCI will be aligning the effective date of our 2018 code versions with the State’s current effective date of February 1, 2021.
Please visit our 2018 Seattle Code Adoption website for continued information and to review proposed code change documents.
If you have questions, please contact:
Technical Code Development Manager