At the start of the 20th century, Vuong Chinh Duc, a member of the Mong people, was appointed the Bang Ta and he had the family residence expanded into a mansion from where he worked. It is one of a style that is rare in this mountainous region of northern Vietnam. The building was designed in the style of the later period of the Qing Dynasty of China, and is grouped into three sections, the front, middle and rear. It comprises six lengthwise and four sideways buildings, two levels, and 64 rooms and 1,120 metres of land space. The building is surrounded by a stone wall, of width between 0.6km and 0.9 metres and of height around 3km. The mansion is 145km to the northwest of the town of Ha Giang and 24km to the southwest of the district of Đong Van.