The distinction between the facades is accentuated: in the eastern, southern and western facades, the sunrays and proximity to the banks of the railway line lead to a protection of the interiors using a series of uniform permeations in the facade. In the north side, a continuity is created between the private and public spaces by opening the facade and creating a loggia facing the forecourt. The intention is to create a link between the users of the building and the public, between interior and exterior, through the use of the loggia as an intermediate indoor-outdoor space.