Shared spaces and “throwntogetherness” in later life: A qualitative GIS study of non-migrant and migrant older adults in Singapore

•Interactions between non-migrants and migrants inflect their ageing experiences.•The spatial attributes of shared spaces can deter or foster intercultural relations.•Micro-publics reveal whether meaningful co-presence exists in shared space.•Ageing-in-place needs to be analysed alongside ageing-across-borders.•Qualitative GIS methods provide a fuller perspective of older adults’ life-worlds.