1, generally speaking, it is not good, and the house pays attention to square symmetry. For example, ancient buildings are designed in this way. The concave geomantic omen created a concave hall. You can put things like turtles, unicorns, lions and Shi Gandang in the concave places to make up for it.
2. Of course, the specific problems need to be analyzed in detail, and the shape of the opposite door and the situation of the neighbors need to be considered.