Seattle Building Codes

Codes

2018 Seattle Building Code

adopts the IBC 2018 with amendments

2018 Seattle Residential Code

adopts the IRC 2018 with amendments

2018 Seattle Existing Building Code

adopts the IEBC 2018 with amendments

2018 Seattle Fire Code

adopts the IFC 2018 with amendments

2018 Seattle Mechanical Code

adopts the IMC 2018 with amendments

2018 Seattle Fuel Gas Code

adopts the IFGC 2018 with amendments

2018 Seattle Energy Code

adopts the IECC 2018 with amendments

2018 Seattle Plumbing Code

adopts the UPC 2018 with amendments

OSHA

OSHA 1904 Recordkeeping

OSHA 1910 General Industry

OSHA 1926 Construction

Additional Resources

2010 ADA Standards

Fair Housing Act Design Manual [PDF]

Adoption Info

INCORPORATED UPDATES

Errata
effective July 6, 2021
Original document

2018 Seattle Building Code
effective March 15, 2021
Source

2018 Seattle Residential Code
effective March 15, 2021
Source

2018 Seattle Existing Building Code
effective March 15, 2021
Source

2018 Seattle Fire Code
effective March 15, 2021
Source

2018 Seattle Mechanical Code
effective March 15, 2021
Source

2018 Seattle Fuel Gas Code
effective March 15, 2021
Source

2018 Seattle Energy Code
effective March 15, 2021
Source

FURTHER INFORMATION

Seattle Department of Construction & Inspections - Codes
Seattle Fire Department

Analytics

Seattle Building Codes

The building codes of Seattle adopt the the International Building Code 2018 (IBC 2018), International Residential Code 2018 (IRC 2018), International Existing Building Code 2018 (IEBC 2018), International Fire Code 2018 (IFC 2018), International Mechanical Code 2018 (IMC 2018), International Fuel Gas Code 2018 (IFGC 2018), International Energy Conservation Code 2018 (IECC 2018), 2018 Uniform Plumbing Code, and the National Electrical Code, 2020.