In Bat Xat, Lao Cai province Ha Nhi house  has a system architecture that is relatively unique. According to the opinion of the Ha Nhi, the house always leans towards the hill and look toward the valley because of the full wealth in such house, if that turned into the direction of the slot, it will not be good for homeowners. Ha Nhi house still maintained soiled foundation architecture including 4 roofs, the frame is created by a column system, the crossbar and assisted by a system of 4,5m long, 4m high walls. The house has only one door and a few vents to get light.

In the hallway of the house they set up the beds for guests and their un-marriage son. On the rightside of the middle wall the stove is set adjacently to it, on the left putting furnitures, the middle space using for eating when the guests come. On the leftside of the wall is the bedroom of the owner, between two areas, the height of 50cm wooden floor used for welcoming guests and  having dinner. Adjacent to the back wall setting bed for old people (father or mother), at the corner which is adjacent to bride'chamber is altar of their ancestors.