This is a mixed methods project conducted in China, UK and France to gather information about older people’s experiences within their home environment and the assistive technologies used to support them so that to assess the feasibility of proposed recommendations for age-friendly housing environments. This collection consists of survey, focus group and interview data. Each bundle belongs to one work package in the ODESSA project. All deposited data were collected by the ODESSA UK research team. There are in total 6 different work packages in the ODESSA project. WP1 & WP6 were funded by NSFC of China, WP2 & WP5 by ANR France and WP3 & WP4 by ESRC UK. WP1 used CHARLS longitudinal surveys while WP2 used SHARE and ELSA longitudinal surveys. They did not generate new data only some analysis to inform WP6. WP5 conducted scoping studies on reverse mortgage, Viager and PPP and did not generate new datasets. WP6.1 produced a prediction model based on the CHARLS data. The UK team was responsible for WP3 & WP4 and for project management. WP6.2 was a new addition to the project once the team realised that WP6 could have a qualitative (WP6.2) and a quantitative (WP6.1) contribution. The access information to the CHARLS, SHARE and ELSA datasets is provided in the related resources list and the notes on access.