From the perspective of geomantic omen, my brother and I are equal, but he deliberately raised the water level by 20 cm. What's the difference to me?

If the height of the house is similar to the height of the courtyard wall, there will be nothing in Feng Shui. But his family, according to your meaning, raised the ground of the self-driving driver, which directly led to the leakage of his wealth! ! And there is no feng shui disadvantage for you.

Good luck, just try to keep a good relationship.