#1 – Antilia, Mumbai, India
The most expensive home in the whole world belongs to Mukesh Ambani, Indian billionaire. This One Billion Dollar home is located in Mumbai, India. The 400,000 square foot building has twenty-seven stories, six of which are underground levels used only for parking. There are also three helicopter pads located on this property. It is believed that it takes around 600 staff to run the residence.