Photo © Dirk Altenkirch

Without any element of daily operations being interrupted, the main branch of the savings bank Sparkasse Dieburg in Gross-Umstadt was completely refurbished and technically outfitted to the “passivhaus” standard. The interior, technical fittings and the entire building shell were renewed; great attention was paid to the quality of the urban development and to scale. Gold certification from the German Sustainable Building Council (DGNB).