Large food retailers are increasingly concerned with the environment. This refers to ecologically oriented building concepts, as in the case of the modernized Coop store in Aadorf, a municipality in the canton of Thurgau. The supermarket is now insulated to the Swiss Minergie standard (similar to a passive house) and is powered by photovoltaic systems on the roof. Progress in front of the doors too: parking is on infiltration and evaporation-active paving with integrated pollutant retention. An additional function for groundwater protection.