Antilla
Price: $1 billion
According to a February report by Property Magazine, the most expensive house in the world, named Antilla (in picture above at left), is in downtown Mumbai, India, and will be the residence of Reliance Industries Chairman Mukesh Ambani. The 27-story, 570-foot-tall tower has a helipad, a health club, and a six-floor garage that can hold 168 cars. Each level has gardens. It will be serviced by a staff of 600 people. Some reports list the price of the house at $2 billion. The architecture and design firms working on this project, Perkins + Will and Hirsch Bedner Associates, declined comment.
