California stands at a pivotal moment to reinvent how buildings are designed, constructed, operated, and renewed. This session brings together leaders across research, design, manufacturing, and innovation to craft a shared 2030 vision for a truly circular built environment—one that transforms scarcity thinking into resilient systems supporting an abundance agenda. Circular design is both a sustainability strategy and an economic opportunity—one that can reshape how we build prosperity. It's about unlocking the supply-side reforms that let us build more, faster, and cheaper while protecting health and resources. By investing in healthy, non-toxic materials supply chains and designing products and buildings for disassembly, we create the conditions for true circularity: materials that can cycle endlessly without degrading future uses or putting workers or fenceline communities at risk. A circular economy also offers powerful answers to the state’s resilience and affordability challenges, with new recovery networks and regional manufacturing generating economic stability and quality jobs across California communities. This session will explore how California can lead North America in developing an integrated virtual and in-person circularity hub—anchored by cross-sector collaboration, market transformation, and forward-thinking policy. This hub will also serve as an information and knowledge platform, providing case studies and policy frameworks applicable to practitioners working anywhere in the US, North America, and potentially beyond. Participants will help shape a vision toward 2030 that aligns industry, government, and community stakeholders around shared goals: safe materials, reversible construction, robust recovery infrastructure, and equitable opportunities in circular industries.