The new proposal for the Zurich municipality is replacing the existing building, which became intolerable for the needs of a contemporary office environment and modern building standards. The area is characterized by massive solitaire buildings placed in a steep terrain. Pathways and streets remind of deep canyons. The houses are placed between a winding street, some having an upper and lower entrance. This urban structure is the backbone for the proposal. The design is proposing a simple and compact shape. Facades towards east and west are tilt backwards, boosting the solitaire character of the building and simultaneously opening the street space allowing more light for neighbouring buildings. The new proposal fits within the pattern of the street but stands out optically through perspective distortion. The building develops a strong and individual image by the design of the facades: following the needs of the load bearing structure, dramatic openings evolve. In combination with white and glittering facade panels the impression of the house will be somewhat elegant. A service core is placed in central position so that the layout of the floor-plan is kept column-free and the working environment stays flexible. The height of office floors remains low with 2,50m, which allows one additional floor in sum. For compensation generous common spaces (multi-storey height entrance zone) and double height meeting rooms (each floor one) are introduced. The inner spatial configuration is focusing on contrast and alternation (versus monotony).