Innovations often get stranded between concept and implementation, Living Labs serve as vital testing grounds where ideas are translated into real-world impact. At the Celcius House in Amersfoort, students, researchers, companies, and municipalities collaborate to shape the sustainable and healthy neighborhoods of tomorrow, directly within the context of those neighborhoods. These environments bridge education, research, and practice, enabling experimentation with complex societal challenges. This article shares insights into our methodology for Living Labs; how we organize, learn, and innovate together to turn ambition into lasting transformation.