The image of the 9th. district has changed dramatically in the last decade. Thanks to conscious urban architectural developments, the former rust zones with their significant railway tracks and marshalling yards have been abolished and replaced by new parks, cultural, office and residential buildings. The area is becoming more liveable and lovable. Pápay Park is also being built next to the Palace of Arts. The FBIS Studio is dreamed up his mass-breaking building, shaped by suspension corridors and bridges. Our assignment was for a conceptual model, where in addition to showing the urban structure fit, we also had to show the two characteristically different uses of materials in the building. The surface treatment of the special transparent 3D printing made possible to smuggle homogeneous interior LED lighting into the buildings.