maintenance corridors are located. Interstitial ventilation is ensured by openings in the roof, allowing the adjustment of the intermediate air buffer. The whole system is made of thin and discreet elements, allowing to keep a lightness and transparency effect as perceptible as possible. In terms of energy [...] energy, the connection to the GLN (Geneva-Lake-Nations) network of the Industrial Services, allows for ecological and economical heating and cooling sources, via nine high performance heat pumps. Equipped with a double-flow ventilation system, the building benefits from a very efficient overall energy efficiency[...]