If the elm tree is behind the house, the bigger the tree, the better. It is auspicious to have elms behind houses, and future generations have surplus grain. And it can be used as a mountain in feng shui, with a backer behind it.
If it is in front of the house, it is not good. It's a top evil spirit. The top evil spirit is the telephone poles, lampposts, trees and road signs you see in front of your door. Most criminals are not good for their health. Modern buildings are built very high, and the roof only works below five floors ~