This paper provides a multidisciplinary take on how participation and agency may be enhanced through participatory design and decision-making methods in a relatively established but nevertheless mutable and variable community, in a university environment. The paper reports on an ongoing project in which research on various aspects of community is carried out along a participatory process. In the project, the overall research approach of nexus analysis was applied, supported with the particular research method of conversation analysis, and data were gathered using a selection of means, e.g. through participant observation and video recordings of a design workshop. In the workshop, the methods of participatory design, participatory decision-making and agile retrospectives were applied. The paper offers new insight into the applicability of participatory methods in designing for social change in an institutional environment and feeds back to the participatory methods via the nexus and conversational analyses of social action.