Constructing computerised medical systems that can deal with the complexity of Home Care units is a very challenging task. On the one hand, many kinds of actors intervene in the care processes, making it necessary to adopt a distributed approach. On the other hand, although there are some available geriatric guidelines, the usual Home Care patients suffer from a set of co-morbid conditions and diseases, and that hampers the direct application of standard protocols. This paper describes the design of a Web accessible multi-agent platform that provides the services needed in a Home Care unit, including the definition and execution of fully personalised Individual Intervention Plans.