A lot of them vacant. Abu Dubai had a real estate bust just like here, and the Sheik of Abu Dubai went bust as well and had to be rescued by his father, the Emir of Dubai. Huge bubble there and a lot of people left the keys on the counter and walked out of there homes and went back to Europe or the States. It is hotter than hades there and oh....alcohol is illegal (wink-wink). It is however a beautiful city and when the economy comes back it will be a special place in the Middle East. If you want one of the places, I would buy now, seriously.