Background: Most people with dementia are cared for by their families at home. This study investigated family carers' identification of barriers and facilitators when caring for a person with dementia at home. Design and methods: Thirteen co-resident family carers were engaged in semistructured in-depth walking interviews. Interviews were recorded, transcribed and analysed using thematic analysis. Results: Home environments can pose a number of challenges and opportunities. Aspects of the architectural and interior environment (e.g. size, condition, layout and accessibility, familiarity) are perceived as important (Theme 1) as well as a plethora of environmental strategies that encourage independence and comfort at home (Theme 2). Carers' scepticism, timing, costs, property characteristics and mistrust of services are some barriers to implementing environmental strategies (Theme 3). Conclusions: Carers often improvise solutions through trial and error. Environmental strategies can create an enabling and comfortable home environment.