First, this is very complicated! 1, the time needed to build a house. 2. Need the direction of the house. You need to know the direction of the ditch in front of the door, specifically on the word compass 24 mountain.
Second, two doors are opposite, and one will decline. Which one goes down depends on which one prospers and which one goes down. Lu Ban Jing Yun: Two doors are not opposite, and one retreats.
Third, move.