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Plumbing and gas piping code books and information

Access guidelines to make sure that your project design is code compliant and will pass inspection.

Access Seattle plumbing code

Access Seattle Codes governing plumbing and gas piping systems.

Code-related information and publications

Washington Association of Building Officials

Code books and code information

International Code Council

Code books and code information

Seattle Department of Construction & Inspections

Seattle building and mechanical permits

Washington State Dept. of Labor and Industries

Contractor registration and plumbing installer certification

King County Parcel Viewer

Find tax parcel numbers and addresses

King County Department of Local Services, Permitting Division

King County building and mechanical permits

Seattle Public Utilities

Sewer and water utilities

Seattle Side Sewer Cards

Property sewer locations and connections

Other Seattle Codes

Important Seattle codes such as: mechanical, building, land use, and more.