This Renovation Story showcases how baubüro insitu transformed an existing warehouse at Lagerplatz in Winterthur by renovating and extending the original structure. The project, called K118, utilized only reclaimed components from deconstructed buildings. This approach flips the typical planning process, starting with material collection, measuring, cataloging, and continuously adjusting the design as new materials were found.

In addition to the salvaged components, baubüro insitu specifically selected natural resources like wood, straw, and clay, which require minimal energy for processing and create a comfortable indoor climate. The result is a space for twelve new studios and workshops, with each floor organized around a shared kitchen and outfitted with sanitary facilities and spacious balcony corridors. An elevator and external staircase connect all levels.

Through this upcycling strategy, K118 reduced its construction footprint by 60 percent compared to a conventional new build, moving closer to the goal of truly circular architecture. This project exemplifies how resourceful design and material reuse can create sustainable, functional spaces while reducing environmental impact.

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