glemm21 is the name of the new company headquarters in Austria, featuring a modern working environment developed in collaboration with Vitra. For this purpose, specific communication pathways, spatial relationships, and many needs were analysed. This resulted in a comprehensive concept to create flexible work zones, areas for concentrated individual work, creative workspaces, group discussions, meeting spaces, informal areas, and much more. A decommissioned bus garage was transformed into a testing ground for the ecological transformation of the globally active company. By renovating an existing building, Rieder consciously chose to set a good example in terms of sustainability in construction. Not only was the old building preserved to save embodied energy, but numerous other components were reused and recycled. Concrete columns from Rieder's grandfather's and father's old factories were used, along with a massive concrete beam from previous production, 150 tons of recycled steel beams, and much more. Even an old wall cladding made of stone pine wood, salvaged elsewhere, contributes to the pleasant atmosphere of a modern, creativity-enhancing workspace. By renovating the existing structure, Rieder saved approximately 1000 tons of CO2 compared to building anew, while also creating a prime example of resource-efficient circular construction. The entire transformation process was accompanied by an engineering firm specialising in energy-efficient construction. Another highlight is the facade: Rieder developed a CO2-reduced glassfibre reinforced concrete. Elements with a reduced cement content cover the new headquarters on a facade area of 400 m². The slate texture in pine green colour resembles slate. Fifty percent of the cement in the concrete matrix was substituted, resulting in a 30 percent reduction in CO2 emissions. Photos: Ditz Fejer / Rasmus Norlander