Today’s environment conditions have reached a critical stage that challenges us to revert the current paradigm of production and waste into new ways to fulfill needs. The whole society needs a shift away from the individual ownership, being it one big reason of environmental crisis. This thesis project is an exploration into the field of sustainability in housing contexts that seeks a different approach in the matter by encouraging the collective use of resources. The resulting design is a product service system that uses indeed a combination of artifacts and services to enhance and augment behaviors towards sustainability, by using calm technology as main touchpoint with the users. This means that the project tries to establish a dialog with the user at a level that presents a valuable aesthetic of interaction because of the fluency of communication.