Dear architect, C2+C2e are shown in provided DWG (appendix 2) as grey solid surface. In this DWG file there is also a border of its underground floor visible as dashed line. Its future volume is also possible to see in provided skp. file (Appendix 4). Construction of the C2´s underground has already started. Therefore, its position is not possible to modify. The same is valid for the C2e (extension of the C2). Its final design is currently subject of the redesign and further detail of both buildings should be available until the beginning of the second round of this competition.