Mukesh Ambani may only be the fifth richest man in the world, according to a report on Forbes’ 22nd annual rankings of the World's Billionaires.

But when his 27-story skyscraper in downtown Mumbai is completed, Ambani, who heads the India-based petrochemical giant Reliance Industries, would be the proud owner of possibly the most expensive home on the planet, with estimated costs approaching two billion dollars.

The Ambanis have engaged the talents of architectural firms Hirsch Bedner Associates and Perkins + Will to realize their dream home, which has been christened Antilla. So how is the Antilla’s stratospheric price tag justified?

Firstly, no two floors in the Ambani residence will look alike – a request by Ambani’s wife Nita. Secondly, the skyscraper’s shape is based on a fengshui-like Indian tradition to usher in positive energy.

Forbes reports that the Antilla will house a six-story carpark, a lobby with nine elevators, a shimmering ballroom awash in crystal chandeliers and featuring state-of-the-art display and entertainment systems. 

There’s even an open garden that stretches four stories high for relaxation and evening strolls. The rooftop atrium offers spectacular bird’s eye view of the bustling Mumbai beneath, and the beautiful Arabian Sea. Not surprisingly, this is also the loft where Ambani plans to hold his corporate functions.

via Forbes