The KU64 dental practice of Dr. Ziegler, the extension of which was designed by Karhard, occupies the fifth floor of the ECO building, dating from 1954 and standing on one of Berlin’s main avenues, the Kurfürstendamm. The plan included two treatment rooms, a connecting room to the neighbouring dermatology clinic, a working area for ten persons and a dental surgery. The treatment facilities, which include two rooms designed for this purpose, are divided by airlocks into sterile and non-sterile areas. Patients from the waiting area pass through a changing room into a sterile or non-sterile operating room, from where they access the corresponding post-operative monitoring area. Room-high glazing on both sides provides a visual link between the various parts of the operating facility, with storage supplied by built-in cabinets running along the entire length of the corridor. A particular challenge of this project lay in the need for the design to provide a link between the futuristic approach of GRAFT Architects and the elegantly designed facilities of the neighbouring Dermatologie des Westens medical practice, which was done by echoing and overlapping the various architectural languages used. A characteristic feature of the medical facilities is likewise the oversized lighting boxes with pictorial motifs of the palaces and gardens of Potsdam, along with the elaborate mosaic work in peacock and floral designs in the operating area; all combined with the decorative mosaic and graphic elements designed by studio karhard®.