Bill Gates's house
 Bill Gates's house is a large mansion in the side of a hill which overlooks Lake Washington in Medina Washington United States of America. The 66000-square-foot (6100 m2) mansion is noted for its design and the technology it incorporates. It is nicknamed Xanadu 2.0 after the title character's estate in Citizen Kane. It took 7 years to build and cost $63.2 million.In 2009 property taxes were reported to be US $1.063 million on a total assessed value of US$147.5 million.