The dormitory has 360 spacious rooms shaped as a pie slices. Their wide end facing the outer side of the building has either a big balcony or a French window. Each room has a toilet and a shower with a heated floor. There are comfy lounges and big kitchens shared by every 12 apartments. Tietgenkollet has a bike park, a large hall, movable bars for parties, quiet rooms for reading and studying and two music rooms with a piano and a drum set.