User blog comment:Chanim Michaelis/Has anyone ever wondered where Gray lives?/@comment-99.247.187.66-20140608014051/@comment-7418318-20140608094358

Juvia lives in Fairy Hills. And with the talk about the Strauss Siblings (including Elfman) cooking for each other that you could see in "Natsu and the Dragon Egg", I would guess they live in their own house together, since Elfman wouldn't be allowed into the female(and cats)-only Fairy Hills.