Feng shui problem. 4-storey multi-storey, twice the distance between buildings to the south, 1 1 storey is small, is it a block?

Absolute shielding. At present, the building spacing is calculated according to 1.3H, that is, if the south building blocks the north building, the building spacing is 65438+ 0.3 times the height of the south building. Suppose the storey height is 3m, the south building 1 1 floor is 33m, and the building spacing is 42.9m, so .. what do you mean by building spacing?