Lumi stands as one of Sweden’s most ambitious reuse projects – a large-scale testbed for circular architecture. In this unique project, the concrete frame of a 1970s building has been extended and re-clad, while nearly everything practically possible has been reused – from plasterboards, bricks and doors to radiators and electrical boxes. The result is a contemporary laboratory and office building with exceptionally low climate impact. Scoring an impressive 99 out of 110 possible points under the LEED certification system, Lumi has achieved the highest score in Europe and is currently the world’s top-rated office building.