The Ochsenburg Castle is located in the South of the capital of lower Austria, St. Pölten. It belongs to the diocese St. Pölten. Unfortunately, since years there is no use for the historic castle which is situated on a hill representatively with a nice view to the river Traisen valley. My architectural design includes a new arrangement of the historic rooms as well as additional spaces connecting the castle. There will be a new dependance to the Diocese-Museum, exhibition space and, furthermore, an archive and some repair shops to fulfill the whole space with a new fresh spirit.