exterior shot contemporary swiss alpine architecture facade redesign absolute design constraints preserve existing geometry preserve the exact existing building geometry overall massing footprint height and silhouette do not change the number of floors or the number size shape position spacing or proportions of any existing windows every window must remain in its original location preserve the existing roofline building wings central projecting volume ground floor configuration entrance location and overall architectural composition do not add or remove floors windows balconies building wings or major architectural volumes keep the original camera position perspective viewing angle surrounding landscape sloped terrain access road and site layout unchanged architecture