The Hahn Meitner Institute Berlin expands the experimental possibilities of the Berlin Neutron Scattering Centre BENSC with a new neutron guide hall with affiliated laboratories, workshops and offices. This fits between the existing buildings and is directly linked to the neutron guide hall I, the technical centre on the east side, the new accumulated measurement and offices in the existing building. Since all buildings were connected to each other through the new building, there were increased demands on fire and radiation protection planning. Difficult subsoil [former garbage dump] and possible ground settings as well as requirements for vibration reduction led to a pile foundation. The special challenge for the construction was the abandonment of magnetic materials in a radius of 10 m [radiation and laser protection] and the fitting of a overhead crane as well as a jib crane with high capacity. The blue-gray building shell is made of aluminum panels. Eye-catchers are the transparent and translucent window elements on the southern facade.