The world's most expensive private residential property is called Antilia. It sits on Mumbai's Altamount Road and cost an estimated $1 billion to build. It is presently valued at over a billion dollars. The Antilia is located at Altamount Road, one of the most expensive addresses in the world.

This 27-story, 400,000-square-foot building has six underground parking floors, three helicopter pads, in case you prefer to arrive by air, and contains a multi-story garage with space for 168 cars. The home was also designed to survive an 8-Richter scale earthquake. The lobby alone has nine elevators; and there is a spa, terraced gardens and a temple where the family prays regularly. It also has a ballroom, guest suites and theatre that seat 50.

Not surprisingly, it is owned Mukesh Ambani, Ambani, the fifth richest man in the world and India’s richest man with an estimated net worth of $18.9 billion. The Antilia is home to Mukesh Ambani, his wife and three children, and it is their sole residence. The family's living quarters are on the top floors because they wanted the sunlight. Despite the huge staff, the kids still maintain their own rooms.

The Antilia is named after a mythical island in the Atlantic Ocean. It has extra-high ceilings and some ceilings are double height, so other buildings of equivalent height may have as many as 40-60 floors. The Antilia was designed by Chicago-based architects Perkins and Will, and Australian-based construction company Leighton Holdings handled the construction. It is deemed to be the world's second most expensive residential property, after Buckingham Palace, which is designated as a governmental property.

Most of the glass in the 2nd 3rd and 4th floor looks shattered and broken abi na my eyes?

this is architectural masterpiece... if you have the money spend it. make your house a home

Wow!...This is massive. 3 Helipads on one building?.....Meeeehn.....when people have this money, no point not spending it as you wish oh!...Like my igbo brothers and sisters will say ''Money wey you no spend go make noise"...I am sure this Indian man would have been Igbo if here were born in Nigeria...lol. I look forward to very iconic commercial and residential structures like this in Nigeria. We shall get there.