A supermarket erected in 1961 was converted into five architecturally ambitious ‘hall houses’. The original volume of the supermarket was retained and extended by adding a new recessed storey on the roof. The kitchens, dining and living areas of the five houses were created out of the former sales area with its ceiling height of four meters. A complex spatial system with split-levels and individual access to the roof was developed around the hall-like living space. The existing building fabric has been preserved for the most part. At places new mezzanine levels were inserted and the new window openings were made in the façades. The changing mood of the light during the course of the day and the fact that the houses are oriented in different directions means that each house has a highly individual character. Inside the houses the visual relationships between the different levels produce a unique kind of living situation.