While the last slab is already being concreted on the street side and the carcass is thus finished, the extension work has already started in the courtyard section. First of all, the windows were installed and the roof superstructure and waterproofing work was started. In the meantime, these services have progressed so far that the interior painting can now also already be done. These are preparatory works for the upcoming installation of the drywall interior walls. A variety of building services installations will be installed in these walls.