The secondary school building "Lënster Lycée", which was put into operation in 2015, offers space for between 1220 and 1405 pupils. In addition to classrooms, the school also houses specialist laboratories, workshops, a swimming pool, a 2-field sports hall, a restaurant with cafeteria and a kitchen. Drees & Sommer was commissioned to check the programming for the controls of the existing HVAC systems (after reviewing and revising the corresponding functional description) by means of simulation.