De Maasberg, is converted from a prison for adults into a functioning juvenile detention institution that located in Overloon, Netherlands, was designed by UArchitects. By means of the light appearance and placement of the steel frame on metal feet in the woodland soil, the volume seems to float in the wood. The façade in steel, aluminium and Bankirai allows the building to merged wth the surrounding woodland scenery, showing different shades of grey. For the flexibility at future changes in the program and treatment, the construction is situated in the side façades, the service pipes have been integrated centrally and the side façades are composed of elements which can be changed modularly.
The classrooms on the first floor and the visiting rooms and offices on the ground floor are functioning separately from each other by means of the two outside stairways. At the entrance to the visiting room there is a hall in which both functions combine, dramatizing the moment of the meeting between the youngsters and the visitors.