I don’t see this as greed. This house doesn’t belong to the priest and never will. They could ask him to move tomorrow and he would. besides he isn’t building a mega mansion. That is why priests are asked to take oaths of poverty (no earthly attachments), and it’s the reason they can’t get married, that would creat severe conflicts of interests in terms of earthly possesions and serving God.
Diocesan priests don’t take vows of poverty