Outdoor and Small Patio, Porch, Deck The penthouse boasts an enclosed walkway and a private courtyard—perfect for those sunny San Francisco days that would be warm were it not for the wind. The open space cutting through the center of the building is broken up by transparent footbridges and shared courtyards, which allow residents to traverse the void while still receiving copious light.  Photo 7 of 11 in Aluminum Clad Residential Units in San Francisco