["Sociology of Health &Illness, Volume 48, Issue 6, July 2026. ", "\nABSTRACT\nThe concept of at‐homeness has been increasingly adopted in residential care to describe a metaphorical sense of being “at home”. Within a sector often criticised for displacing residents from familiar environments, at‐homeness has come to symbolise the ideal experiential outcome of care. Yet, despite a growing body of work enriching our understanding of what at‐homeness entails, existing conceptualisations tend to overlook the processes through which at‐homeness is personally and multiply constructed and are shaped predominantly by studies of older adults in long‐term care contexts. To address these limitations, a qualitative study, employing a user‐involved approach, was conducted in Hong Kong, incorporating in‐depth interviews with 60 residents of mental health residential services and ethnographic observations across three hostels. Analysis shows that at‐homeness is shaped through boundary‐setting and bonding between the self and three arenas—social relations (“people”), material environments and temporal orientations. Residents interpreted core qualities of at‐homeness across personal, relational, material and temporal dimensions and their constructions were guided by distinct logics involving self‐appraisal, temporal integration, relational attunement and socio‐cultural grounding. The study proposes an integrative framework that reframes at‐homeness as a dynamic, negotiated process, offering new insights for advancing theory and strengthening methodological and practice approaches in residential care.\n"]