This is an affordable prefabricated low-energy house for a young couple and their two children. The family wanted a house which felt like a connected space, but which would also offer individual freedom to the occupants.The building is separated into an upper and a lower part.The upper volume consists of rooms of various heights corresponding to their individual function. Bedrooms, bathrooms, the dressing room and the rooms for the children all require different heights and project into the lower living areas. This common space is organised by these staggered volumes without being interrupted by partitions.