Good Feng Shui has little to do with the newness of the house.
The key point is whether the surrounding environment is favorable.
Whether the internal layout and furnishings are appropriate.
Of course, the kind that is dilapidated and about to close down is inappropriate. It's okay if it lasts a long time but doesn't affect safety.
It is generally good if the people who live in it are very successful, but if the people who live in it are poor, then it cannot be said to be good.