zio studienauftrag einfamilienhaus zollikon location zollikon status projektstudie IODKO CAM C 25 IODKO CAM C 25 IODKO CAM A 25 IODKO CAM A 25 IODKO CAM B 25 IODKO CAM B 25 IODKO CAM F 25 IODKO CAM F 25 IODKO CAM E 25 IODKO CAM E 25
