Harry’s house was in bad shape.

While we all know that Harry Potter had a difficult childhood, we don’t believe that enough people are aware of the fact that he grew up in a broom cupboard. Yes, the Dursleys were cruel to Harry, but not even providing him with his own room?
Of course, we all know that he eventually got his own room, but what were the criteria for moving from under the stairs to up the stairs and behind his own door?