The built environment (e.g., homes, commercial buildings, infrastructure) and the process of creating it consumes the most energy and produces the most waste of any other industry. The emerging discipline of Circular Economics can be a useful tool in tackling these sustainability impacts since it addresses systemic challenges such as climate change, waste, natural resource management, supply-chain management, and pollution. This project will develop a new course at CSU, the first of its kind to feature Circular Economics as a guiding theme. Through a research-based teaching methodology, the new course, Circular Economics in the Built Environment, will provide students across disciplines with transformative training on sustainable systems for the built environment.