What is the ratio of the height of the building to the depth of the foundation under normal circumstances?

There is a certain relationship between building height and foundation depth, but it is not absolute.

Under the condition that the type of foundation and the area of foundation base are unchanged, the depth of foundation increases with the increase of story height. The ratio of general building height to foundation depth is 3, that is, building height: foundation depth = 3: 1.

The story height, the height of the house can be calculated by "meter" or "floor", and the height of each floor has certain requirements in design, which is called the story height. The story height refers to the vertical dimension between the surface of the lower floor or the upper surface (or lower surface) of the floor and the upper surface (or lower surface) of the adjacent upper floor. Namely: the height of the building structure.

Clear height refers to the distance between the lower floor surface or the upper floor surface and the lower surface of the upper floor.