The existing walls of the building were used as formwork and cast in concrete to become the new walls of the building. As part of a workshop, architecture students from the Ostbayerische Technische Hochschule Regensburg (OTH Regensburg) built the entire formwork structure, using the existing timber framework. Abiding by the regulation, three walls were kept standing at all times. The process of casting and removing, with the resulting imprint of the wood, is proof that no wall was ever taken away. Unlike Whiteread’s project, the result was not a monolith. Instead, the poured concrete walls form the new building envelope for a guesthouse with one room. On the inside, all installations are reduced to a minimum: instead of central heating, a single oven is used to heat the small volume, allowing the building to be used from spring until autumn. The toilet is concealed behind a mirrored wall, as an alternative to building an extra room. Water is carried through exposed pipes and is heated in a small boiler to use for the shower and sink, which occupy a small corner of the room. A large sliding glass element fills the previously missing parts of the ruined structure. Spanning from floor to ceiling, the glass element opens the space to the adjacent garden and offers the view to the neighbor: 0131 Antivilla. Read less