Background: The potential to influence the design of one’s local environment is especially important to older people since age-related problems, in combination with a less supportive environment, can prevent the performance of meaningful activities. It is unclear how best to tailor a participatory approach to support the task of collaborating with older persons about their local environment. Life filming was used in such a project. Objective: To describe Life filming as a means of participatory approach in relation to older community-dwelling persons and the design of their local environment. Material and method: A descriptive single case study. Data were generated through field notes and memos, and analyzed utilizing thematic analysis. Participants have validated the findings. Findings: Five themes describe central aspects of Life filming in the given context: Anchoring the concept of participation, Practical application of Life filming, The film as a product, Making a real difference, and An identity as a capable older person. Conclusion: Life filming supported participation, both as a process and an outcome. It had benefits on multiple levels: for the individual person, for older persons as a group, and for the municipality. Life filming could constitute a useful digital tool for practice when a participatory approach is desired.