Sentralen is a transformation of a late 19th century bank- and office building into a new culture hub. Following an open design competition, user groups of 6-8 people studied the functional requirements and solutions of all the different areas, and a large model was used to focus the discussions. Ensuring flexibility throughout was a priority, to allow changes over time, both in spaces and in services. The buildings are registered as cultural heritage, and a continuous dialogue with the conservation authorities has also been maintained throughout. Marks acquired over time have been left visible, and certain spaces have been restored to former glory. A minimum of new elements have been added.