Washington State Building Code Council to adopt 3D-printed construction guidelines by 2024

Washington State is poised to embrace innovative construction technology with the introduction of House Bill 1029, which aims to integrate 3D-printed building construction into the state's residential code. Proposed by Representative Shavers and introduced on January 13, 2025, this legislation seeks to modernize building practices and address the growing demand for affordable housing solutions.

The bill mandates that the Washington State Building Code Council amend the residential code to include provisions for 3D-printed construction. Specifically, it requires the adoption of the 2024 International Residential Code appendix BM, which outlines standards for 3D-printed buildings, during the upcoming code adoption cycle. Furthermore, by the 2027 cycle, the bill calls for these provisions to be incorporated into the main body of the residential code, signaling a significant shift towards mainstream acceptance of this technology.

Proponents of the bill argue that 3D printing can drastically reduce construction costs and time, making housing more accessible in a state grappling with a housing crisis. By streamlining the regulatory framework, House Bill 1029 could pave the way for innovative building methods that enhance efficiency and sustainability in construction.

However, the bill has not been without controversy. Critics express concerns about the safety and durability of 3D-printed structures, questioning whether current standards adequately address potential risks. Additionally, there are debates surrounding the implications for traditional construction jobs, as automation may disrupt the labor market.

The economic implications of House Bill 1029 could be substantial. If successful, it may lead to a surge in 3D-printed housing projects, potentially alleviating some of the housing shortages in Washington. Experts suggest that this could also attract investment in new technologies and create jobs in emerging sectors related to 3D printing.

As the bill progresses through the legislative process, its future will depend on addressing safety concerns and balancing innovation with the needs of the existing construction workforce. If enacted, House Bill 1029 could mark a transformative step in Washington's approach to building, setting a precedent for other states to follow in the quest for affordable housing solutions.