20 19. Beijing langlizi Taihe mansion project started construction on 20 14, and it took five years to complete the planning and construction of the whole project, which was completed on 20 19. Beijing Langyi Taihe Mansion is located at No.5, Beiqing Road, Changping District, Beijing, close to universities such as Peking University and Tsinghua, and commercial circles such as Zhongguancun Commercial Center and Shangdi Commercial Center.