The building on Rudolf-Kassner-Gasse 13, reconstructed by Sans Souci Group, includes a villa «Zwölfende» with private garden and a 4-storey building with separate apartments «Fuchs», «Hase» and «Uhu» and a penthouse on the «Adler» roof. The elevation of the building was made of unplustered bricks, which is completely unusual for this area and is characterized by a soft grey colour scheme. Due to its location, the building is not visible from the street, creating privacy away from the hustle and bustle of the city.