The design for Maisonette transforms a former ballroom of the Ambassador West Hotel into a modern apartment. Two ascending platforms linked by a narrow passerelle expand the ballroom space to the second floor, where additional bedrooms are located. A large void cut away from the second floor slab creates a dramatic vertical space in the center of the apartment. The void establishes visual connections between the living levels, office-platform, game-platform and passerelle, dematerializing the traditional boundaries that characterize domestic space.