The research is concerned with the introduction and use of a wide range of AT in existing (older) housing occupied by older people, as opposed to new building initiatives.  There is likely to be considerable variation in the feasibility and cost of introducing AT which will not only relate to user needs but also to the age, type and standard of property. If AT is to be introduced on any significant scale to support care in the community of older people, it must be easy to use, cost effective, flexible, easy to install and maintain, and compatable with other technologies and services.