Shelton Mindel has combined two distinct developer units on top of a new high-rise in Manhattan, a two-story penthouse and a studio below, to create a seamless three-story single-family apartment. Limited by the existing layout of the composite, the staircase provides a unique physical connection between all three levels. By using a simple metaphor, coupled with a clean and concise design concept, the three separate floors of the developer's building were combined in this renovation to create a seamlessly integrated three-storey house.