The Complex Built Environment Systems group (CBES) is a dynamic team of academics working together to gain a deeper understanding of the physical performance of built environment choices and their implications for energy use, health, conservation, productivity and climate change. CBES is primarily interested in developing solutions to the practical problems of designing, constructing, and managing appropriate environments within and around buildings. In 2006, CBES was awarded a prestigious five-year platform grant from EPSRC in recognition of its "world-leading" research into the complex built environment. This platform grant was renewed for another 5 years in 2011 in order to allow CBES to focus on the unintended consequences of de-carbonising the built environment.