The house above the neighbor has an influence on the house below, but it is not a road. It's whether your own house has done a good job.
1. The house above has downward gravity and outward thrust on the house below. It is necessary to make a rubble gravity retaining wall in the opposite direction of the house to resist the pressure on it.
2. Strongly weathered soil with a slope greater than 60 degrees is completely exposed, which is easy to cause geological disasters due to soil erosion. It is necessary to drain water along the retaining wall, and the exposed soil should be covered with woven fabric and planted with grass.
It seems that local people prefer to use stone walls, which are very beautiful and full of local characteristics. However, it is suggested that the wall should be made of stone or concrete as the foundation and column to enhance the structural safety of the wall.