This was a remodel of an existing 1940’s non-descript brick house in Denver. The client wanted to make a duplex on this property but zoning would not allow it. We strove to design a house that functioned like a duplex but in essence was one house. This goal and the restrictive bulk plane drove the design. The back area is a garage with a small unit on top. This separated unit is then connected to the main house via a glass hallway that slices through a courtyard. This connection makes the house appear as one house yet provides the client with the desired privacy of a duplex. Southern glazing is maximized in order to capture as much passive solar gain for the cold climate of Colorado as well as to bring light into the space.