The Beijing firm Vector Architects has renovated this house on the southeast end of Huangqi Peninsula, Fujian Province, for the captain of a ship and his family. The intervention addressed the deterioration of the building by adding a 12-centimeter-thick layer of concrete to the original brick masonry walls that would also serve as structural reinforcement and as protection against water leakage. Moreover, the floor plan was adjusted to provide the living room, dining room, and master bedroom with better views of the sea as well as more natural light and fresh air. However, the main operation of the project was the construction of a third floor, a multipurpose space over the two preexisting levels which is covered with a concrete vault and closed at the ends with a system of blocks of translucent glass. This makes the house turn on like a lantern when the sun sets, illuminating the port of Fuzhou.