The socially and ecologically conscious transformation of the built environment—whether urban or rural—calls for productive discussions with the community. The sharing of collective experiences gives rise to inspiring ideas and concrete visions for the climate-neutral reconstruction of our lifeworld. Starting from these principles, architects and urbanists present ten strategies for transforming residential and office buildings, urban districts, and traffic infrastructures. They shape processes that rely on discussion and trial and error, taking lived reality seriously, experimenting with temporary utilizations, and encouraging shared responsibility rather than simple acceptance. Together, they are developing a vision of a possible future. With an interview with John von Düffel and contributions by Frank Adloff, Leona Lynen, Susanne Wartzeck, Andreas Willisch, and others Collective approaches to the transformation of existing architecture Visions of a climate-neutral future