13 BIGGEST Houses From mansions to palaces to crazy people who got money in ways we don't understand these are the 13 BIGGEST Houses. Antilla is the name of a giant futuristic mansion in Mumbai, India and is the first billion dollar residential home to ever exist. It was commissioned by the world’s fifth richest man Mukesh Ambani, who is the owner of the biggest company in India, Reliance Industries. Mukesh’s 27 story mansion towers above the surrounding apartment high-rises and comes complete with a cinema complex, helipads, a health center, and hanging garden. Hala Ranch is a 95 acre estate just north of Aspen, Colorado in the Rocky mountains. Hala Ranch originally belonged to a Saudi Prince named Bandar bin Sultan before it was purchased by an American hedge fund manager named John Paulson.10 years ago Hala Ranch was the most expensive estate ever listed in the U.S., priced at $135 million dollars in 2006. 135 million seems like a fair price for a 56,000 square foot area that trumps the White House in size. 50 Poplar Hill Drive, in Farmington Connecticut is the address of 50 Cent’s crazy crib. His 51, 567 square foot mansion comes complete with all the amenities any rapper could need: 21 bedrooms, 25 bathrooms, an indoor pool, a gym, a basketball court, a green screen studio, a recording studio, and an underground disco room complete with stripper poles. This pimped out mansion is as lavish as they come but has unfortunately cost 50 cent more than a million and has spiraled him into bankruptcy. The Manor, also known as the Spelling Manor named after its previous owners, now belongs to a British heiress named Petra Ecclestone. The Manor is a 56,500 square foot estate in the posh neighborhood of Holmby Hills, California. Previously the most expensive home in America priced at 125, million dollars, it was sold at the low low price of 85 million to the heiress. The Hearst Estate is a huge property that spans several hundred acres and includes a huge ranch and a herd of zebras. The property is actually made up of one main house and several smaller guest houses. Casa Grande, the main house is 65,000 square feet, with the other houses amassing a total of more than 10,000 square feet. This huge house has seen many celebrity guests and has famously been used as a backdrop in the Godfather films. Although originally a residence for the Hearst family, it was registered as a California State Park in 1957 and has been open for tourists to visit since.