The treehouses are definitely inhabited. We walked out on the golf course on Nov. 26, and were surprised by just how close the treehouses really are. The 18th hole is on the backside of the Grandstand, and that's all that separates them, a very narrow hole. I was surprised, too, that no one stopped us from looking around, although we were outside the green "fence", and not bothering anything. I think the golf cart people were keeping an eye on us, but they didn't speak to us at all, just watched us. It was dusk, so no golfers were out that late. DH noted that golfers hate it when non-golfers go out on golf courses, but I wanted to get close.