How should a diverse metropolitan region such as the German capital Berlin and the surrounding state of Brandenburg reinvent itself, while preserving its character, nurturing its attributes, and simultaneously preparing for climate change? 21BB-Model Region Berlin-Brandenburg offers an analysis of these important strategic questions, along with constructive solutions. As a comprehensive survey of the entire Berlin-Brandenburg region, this book presents essays; striking visualisations, maps and graphics; and projects in a large-format atlas. Its findings are based on extensive research at University of Texas at Austin’s School of Architecture (UTSOA) into complex subjects such as the circular economy, social equity, mobility, energy and water management, environment, population growth and density, inclusion, and urban culture. Wide-ranging essays are supplemented with proposals developed by UTSOA’s students. The book also features a radical urban and regional design submitted to an international competition for Berlin-Brandenburg’s long-term development by Berlin-based firm Hoidn Wang Partner. Given the urgent need for a public debate about the future of Germany’s capital region, this volume offers a solid factual basis and offers new approaches, projects, and ideas.