A stilt house of the Cao Lan people has three compartments and is supported by eight big pillars. Of which, two pillars must be longer than others as they are buried more deeply into the ground. The remaining pillars are placed onto stones to prevent termites.

The Cao Lan ethnic people in Dong Quan Hamlet, Thang Quan Commune, Yen Son District, often organise cultural activities in the traditional stilt house.

The roof is tiled with palm leaves or grasses which are overlapped over the floor to protect the house from rain and wind. Therefore, the walls of the stilt house are only covered with bamboo wattle to add cosiness to the house.

The main compartment of the house is connected with an auxiliary room, which is a place to store work tools and foods such as rice, corn, sweet potatoes or to dry women's dresses.

The stairs of the house are made of wood with 5 or 7 steps. They are located to the rear of the house.

Currently, the Cao Lan people in the province have well preserved their ancient stilt houses. The houses are considered as an ideal model and a good traditional cultural symbol of the Cao Lan ethnic people.