Foundation height of the main house and some houses

The height of the main room and the wing room is less than one meter. What you should say is the height difference between the side hall and the main hall. In general, the difference is only less than half a meter. From the perspective of geomantic omen, half a meter low or even or half a meter high will not have any influence on the geomantic omen of the house. But if there is a big difference, it will have an impact, but this will not happen in real life.