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2018 Seattle Construction Code Adoption Delayed Until 2021

SDCI is in the process of updating Seattle’s construction codes to the 2018 versions of the building, residential, existing buildings, fire, electrical, mechanical, energy, fuel gas, elevator, boiler, and plumbing codes. Due to many factors, including the impacts of the COVID-19, the 2018 Washington State Construction Codes effective date has been delayed. SDCI will be aligning the effective date of our 2018 code versions with the State’s current effective date of February 1, 2021. 

What’s Happening With the Stormwater Code Update?

The draft documents of the 2021 Stormwater Code and Manual, supporting documentation, and other related project code changes are available for your review on the project documents page. The official public review period for these documents was April 1 – May 16, 2020, but we are still interested in your comments. Visit the get involved page to find the template and instructions for submitting your feedback. We will hold another official comment period in the Fall/Winter of 2020.

New Risk Category Occupant Load Calculations Code Interpretation

On February 27, 2020, SDCI issued a code interpretation of Seattle Building Code section 1604.5, Risk Category Occupant Load Calculations. This code interpretation will help applicants calculate the building occupant load to determine the building’s risk category. The code interpretation allows a reduction in gross area for certain occupancy groups…. [ Keep reading ]

Updating the City’s Stormwater Regulations

– Public Comment Period Now Open The Department of Ecology is requiring Seattle to update our current codes with additional stormwater control regulations as a condition of our NPDES permit. To meet these requirements, we are revising our existing Stormwater Code (SMC 22.800-22.808) and the associated Stormwater Manual (Directors’ Rule… [ Keep reading ]

2018 Seattle Construction Code Adoption Delayed

SDCI is in the process of updating Seattle’s construction codes to the 2018 versions of the building, residential, existing buildings, mechanical, energy, fuel gas, and plumbing codes.  We have been aiming for an effective date of July 1, 2020, to align with the effective date of the Washington State building… [ Keep reading ]

2018 Seattle Construction Code Adoption Delayed

SDCI is in the process of updating Seattle’s construction codes to the 2018 versions of the building, residential, existing buildings, mechanical, energy, fuel gas, and plumbing codes.  We have been aiming for an effective date of July 1, 2020, to align with the effective date of the Washington State building… [ Keep reading ]

Updated Seattle Stormwater Code Regulations

Our stormwater code protects people, property, and the environment by controlling how rainwater runs off of streets, buildings, and parking lots. This stormwater runoff can cause flooding, landslides, and erosion that can damage our homes, businesses, and property. Stormwater is also the main source for pollutants in our creeks, lakes,… [ Keep reading ]

Seattle Code Development Website

Visit our new 2018 Seattle Building Code website! We’re currently working on amendments for the 2018 Seattle Building Code, Residential Code, Existing Building Code, Fire Code, Plumbing Code, Mechanical Code, Electrical Code, Boiler Code, and Elevator Code. Amendments under current review are those adopted by the WA State Building Code… [ Keep reading ]

Seattle Code Development

SDCI is currently working on amendments for the 2018 Seattle Building Code, Residential Code, Existing Building Code, Fire Code, Plumbing Code, Mechanical Code, Electrical Code, Boiler Code, and Elevator Code. Amendments under current review are those adopted by the WA State Building Code Council, current amendments of the 2015 Seattle… [ Keep reading ]

Energy Code Development

SDCI held four public meetings in January to review proposed 2018 Seattle Energy Code amendments, with over a hundred stakeholders participating. Participants considered three dozen proposed amendments during the ten hours of meetings. As a result, SDCI is making modifications to most of the proposals and will eliminate a few… [ Keep reading ]