C.F. Møller calculated the hospital’s future activities and its capacity requirements for beds, offices and clinical rooms on the basis of user needs and analyses of demographic trends for the Oslo area. C.F. Møller was also responsible for several of the related architectural tasks.
In 2009, Ullevål became part of Oslo University Hospital, which is a federation of four hospitals in Oslo – the National Hospital, Aker Hospital, the Radium Hospital and Ullevål Hospital – and hence is Norway's largest hospital, with approximately 20,000 employees.
