On the protection or patent of architectural design scheme

There is no patent protection, and you can apply for a patent only if you design a house with no foundation hanging at all. Not to mention the appearance, have you ever seen a painter apply for a patent? You can draw shrimp, so can I, as long as he doesn't copy your paintings. As for the current house structure, everyone builds this kind of house because it is easy to live, and there is no patent at all.