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Seattle Building Codes

INCORPORATED UPDATES
Seattle SDCI
2018 Seattle Construction Codes Errata
effective July 6, 2021
Original document
2018 Seattle Building Code
effective March 15, 2021
Original document
2018 Seattle Residential Code
effective March 15, 2021
Original document
2018 Seattle Existing Building Code
effective March 15, 2021
Original Document
2018 Seattle Fire Code
effective March 15, 2021
Original Document
2018 Seattle Mechanical Code
effective March 15, 2021
Original Document
2018 Seattle Fuel Gas Code
effective March 15, 2021
Original Document
2018 Seattle Energy Code
effective March 15, 2021
Original Document
2020 Seattle Electrical Code
effective March 15, 2021
Original document
2018 Seattle Plumbing Code
effective March 15, 2021
Original document
FURTHER INFORMATION

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Seattle Agencies

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), Standard for the Installation of Sprinkler Systems, 2016, National Electrical Code, 2020, Uniform Plumbing Code 2018, Accessible and Usable Buildings and Facilities, 2009, Safety Code for Elevators and Escalators, 2019, and the Building Code Requirements for Structural Concrete 2014.
Seattle building codes, including the fire and residential codes

Seattle Agencies

Seattle Deparment of Construction and Inspections
Website: http://www.seattle.gov/sdci/
Address: 700 5th Ave, Suite 2000 Seattle, WA 98104
P.O. Box: 34019, Seattle, WA, 98124-4019
Phone: (206) 684-8600

Seattle Fire Department
Website: https://www.seattle.gov/fire
Address: 301 2nd Ave S, Seattle, WA, 98104
Mailing Address: 301 2nd Ave S, Seattle, WA, 98104
Phone: (206) 386-1400