Background <p>Gerontological theories, terms and concepts often cross disciplinary and national boundaries and change or adapt in that process. Accordingly, literature-based studies show that the theoretical understanding of space and ageing differs in the German and French contexts.</p> Research question <p>From a&#xa0;lifeworld-oriented perspective, we ask to what extent differences in older people’s everyday experience of space can be found in the two countries and what dynamics between the relationship to as well as the personal experience of space and ageing become apparent in each case.</p> Methods <p>Based on the Photovoice method the relationship between space and ageing was explored across linguistic, national and disciplinary boundaries through participatory research with older adults.</p> Results <p>Thanks to the participation of older co-researchers in the collection and analysis of the material and the development of theory, it became visible that spatial relationships and spatial perception are not linked to national cultural influences but more to aspects such as milieu-specific or generational affiliation. The results show a&#xa0;homogeneity of spatial perceptions and practices across national borders and illustrate how (shared) memories, social transformation processes and biographical transitions shape and change them.</p> Discussion <p>Participatory approaches have the potential to open up new perspectives and theoretical approaches to ageing and space that are better suited to the new generation of older adults. In addition, research-based collaboration between scientists and older adults enables transformative learning experiences on both sides.</p>