The partition walls were removed, and the original large spaces between bearing walls were restored. The walls, brick ceilings and windows were rehabilitated, and a service unit was inserted, comprising a lightweight structure of pine timber, birch panels and a ceiling of medium density fibreboard. This unit is designed as a fitting that guarantees the basic domestic functions of cooking, washing, sleeping and storage. The clearance in the apartments of 3.60 m ensures sufficient space to create a useable volume above the bathroom and kitchen ceilings. The proposed lighting system allows for changes of arrangement to suit the needs of the future occupants.