In the BASIC option two floors (450 m2) will be added on the roof. The whole building could be used as a hostel. The MAX option adds a extra mass of 1300 m2 to the back of the building. Again, the whole building will be used as a hostel. The MIX option adds a mass of 860 m2 as housing in the back. This will activate an extra entrance at the Zocherstraat. Next to all options, the BASEMENT can be used as a commercial space, such as a supermarket. The must-do-option is open up the front facade at the ground floor, so there will be more transparency.