The existing villas in the Jumeirah area will have privacy issues now with people from the building being able to peer into their yards. Not a good idea for some people with private swimming pools.

You can dodge neighbors' stares with a tennis fence thing, but can't do much about a tall building unless you create a shade.

That's Wild Wadi's problem with Burj Al Arab. Ladies' day is during night hours as a result to help hide them better.