The former spinning mill building in Windisch is about 70m long and 27m deep. With the most sparing interventions possible, we transform the former production site into housing space, which benefits from the existing qualities: a field of filigree steel columns, framed by solid brick façades. With cabinet elements and few partitions, the wide field is divided and given a homely feel. The fixtures thin out towards the physical building envelope to make room for an enfilade. The staircases each provide access to 4-6 apartments as well as interior workrooms and storerooms. The existing structure is exposed and contributes to the formation of an identity for these special apartments.