answer:Is this your son? If it were me, I would clean the stuff up myself, box up what looks important, ask him to take those boxes to his new place so he can look through them and I would restore the room to it’s pre-adult-child status (probably paint, new rug, some new furniture or keep his bed and make it like a lounge room). If he’s been out for a year, that’s long enough to wait for him to do it himself, and enough time has been granted owing to him probably working, etc.