The Hogenheuvelcollege houses the Faculty of Economics and Business of KU Leuven. The building consists of several wings that were constructed between the end of the 20th and the 17th century. Due to its goal to halve the global CO₂ emissions of its, often historical, buildings by 2027, KU Leuven is installing heat pumps that complement the existing fossil heating plant. Builtwins is responsible for maximising the heat pump use while reducing costs and maintaining comfort in all parts of the building, which includes offices, a conference room, auditoria and a library.