Fuyu Building is an outstanding representative of the Yongding Mansion's Di-style Tulou. The structure of this building is orderly and distinct, and it is integrated with the slopes behind the building, which is even more magnificent and majestic. The building is like three mountains, implying the meaning of the three brothers of the building. Yongding Tulou is characterized by gathering people and living together, and each Tulou is a large family. Each Hakka Tulou has a name, mostly taken from the ancestors in the family tree. Almost all Tulous, the first floor is a stove, the second floor is a granary, and the third floor is the place to live. All rooms are of the same size, with open corridors connecting to form a ring or "mouth" glyph.