SWICE is a research project funded by the Swiss Federal Office of Energy SFOE, in the framework of the SWEET programme (Call 1-2021). The project aims to experiment and implement sustainable social change practices based on less energy-intensive behaviours through carefully co-designed interventions on the physical environment taking place in daily living, working and leisure. While people and socio-material dynamics are considered the main "agents of change" of the energy transition, three main "sectors of change" are identified in terms of impact on energy demand and supply management: the built environment, open spaces and mobility. SWICE is coordinated by EPFL and brings together a large consortium of research, support and implementation partners.