In its mission statement, the Sustainable City of Leutkirch in the Allgäu formulates a balanced relationship between efficiency, economic efficiency, ecology and acceptance as a basic prerequisite for sustainable projects. The sports hall from the 1980s is to be refurbished in terms of design and energy by using large-format wooden frame elements made of renewable domestic white fir. Due to the precise measurement of the building, the facade elements are prefabricated cost-effectively and thus enable a short construction time. In a sample consultation module to be created, the innovative handling of the energetic facade renovation on wood-based modules is presented.