Construction Code Interpretations

What Are They?

Our interpretations, policies, or code alternates were written to provide guidance for our review staff and to ensure consistency of our reviews. While they may be used as guidance for your design, they are subject to change without notice and their application to specific projects may vary.

For questions about how these code interpretations may apply to your project:

To request an interpretation of the meaning, application, or intent of any development regulation in our Land Use Code or environmentally critical area regulations during a land use project's comment period, see Comment on a Project.

2018 Building Code Interpretations

2018 Energy Code Interpretations

2018 Residential Code Interpretations

2015 Seattle Building Code Interpretations

2015 Seattle Existing Building Code Interpretations

2015 Seattle Residential Code Interpretations

Construction and Inspections

Nathan Torgelson, Director
Address: 700 5th Ave, Suite 2000, Seattle, WA, 98104
Mailing Address: P.O. Box 34019, Seattle, WA, 98124-4019
Phone: (206) 684-8600
Phone Alt: Violation Complaint Line: (206) 615-0808
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SDCI issues land use, construction, and trade permits, conducts construction and housing-related inspections, ensures compliance with our codes, and regulates rental rules. SDCI is committed to an antiracist workplace and to addressing racism through our work in the community.