Edmonton architect Vivian Manasc’s 19th-story penthouse is a bright spot—and a model green building—in a city where downtown living is rare. She stripped the rooftop mechanical room down to its steel frame, rebuilding it as a 2,500-square-foot two-bedroom loft that horseshoes around an existing elevator core. The penthouse is designed for near net-zero energy consumption: Solar panels generate electricity and waste heat emitted by the elevator core warms the space passively. Photo by Garth Crump.
Carsten Cox has an enviable panoramic view from the terrace of his Norman Foster–designed penthouse, with its wide sweep of water and landmarks both industrial age and modern. The steel used for the terrace, and the brick-colored cladding of the building, echo the industrial architecture of the area. The angles suggest a ship, a nautical link with Duisburg’s past as a major port. Photo by Hertha Hurnaus.