After living in the house for several years, the back door was closed, but the door was opened again. Live, okay?
You asked, "Is it good to live in a house with a closed back door for several years and then a door opened on the right?" Not so good.
Opening a side door is easy to be taboo, and most people can't determine the auspicious position of the side door, which will destroy the taboo of geomantic omen and affect the fortune of the family.