SDCI customer service areas remain closed until further notice and continue offering services online. King County has approval from the State Department of Health to allow all private construction activities that are low-risk and adhere to strict COVID 19 Job site Requirements. The City of Seattle has issued requirements for construction projects seeking inspections. The City WILL NOT INSPECT any site that does not follow these requirements.
Summary: Factory-assembled structures include both residential and commercial structures that are built off-site in a factory and are later transported to a building site for installation. The State Department of Labor and Industries (L&I) regulates and approves the construction of all factory-assembled structures that are sold, leased or used in Washington state. Site installation requirements and inspections vary with the type and use of the factory-assembled structure and are generally the responsibility of the local jurisdiction where the structure is to be located. This Tip describes the types of factory-assembled structures allowed in Seattle, along with their permitting and inspection requirements.
Date Revised: 06/25/2019