Due to the small living space in Hong Kong, it is hoped that the “Sun Patio” will allow residents to create the connections between people in the open space of the split-level. Bring a light sense of floating into Hong Kong's high-density cement buildings, thereby breaking the architectural grid and allowing users to have more visual sense of rhythm. The reflectors on the top floor, combined with the light guide device, are placed in the atrium of the high building. With the light transmission properties of the materials, the visual weight of the panels is reduced to make the space lighter. By the way of suspension, the daylight lighting time can be increased indirectly.