Like other branches, the health sector is also searching for new organisational forms in view of competitiveness. More and more, hospitals see themselves as integrated health care and service centres. This new view calls for structural and organisational consequences. This paper is to demonstrate how an architect can find systematic answers to these new requirements through his planning work. This paper presents a systematic strategy for the development of a concept for a hospital extension and also of the design of an integrated private practice for radiology and radiotherapy carrying out a fictitious conceptual study using the example of St. Elizabeth Hospital in Lörrach, Germany.