The extension connects to the hall with an articulated joint. The slender structure of the new building turns away to the north-east, so to speak, so that a view of the balloon hall opens up as soon as possible when entering the site. At the same time, this creates a kind of funnel as an access space towards the northern entrance. With its firewall, the new building connects to the future TU site at the specified location and extends almost as far as the intersection of Franz-Grill-Straße and the feeder to the tangent.

The RED PLATFORM connects to the horizontal transom of the façade structure by means of a cove. This has several advantages: the full height of the windows is used to let light into the studios, the opening along this outer edge mutates into an elongated bench inside or into exhibition platforms to the left and right of the assembly hall, the cove is designed as a hollow body and contains the necessary building services to supply the assembly hall.

From the entrance level after the access staircase of the northern entrance, students and teaching staff can also directly reach the seminar rooms with their pre-zones, as well as the library. The cafeteria with its terrace in front towards the later TU campus serves as a link between these different directions and functions. It is intended that this level will be taken up by the TU campus and continued as a level of social interaction. On the TU campus, there could then be an exit into the courtyard between the two academic institutes to close the circle of public, social activities.