Bill Gates spent millions on modernizing and securing the home he lives in
- Property Value: $125 Million
- Year purchased: 1998
- Location: Medina (Washington)
Bill Gates owns one of the most expensive celebrity houses in history. Gates, as one of the richest men in the entire world, can afford to spend lavishly on his home. Gates reportedly has an estate valued at $15 million. The lakefront compound is 66,000 square foot.

In 1998, the cost of buying this place was not as high as it appears. Gates spent $14 million at the time on the property and surrounding land. The work Gates has done to make a home that is modern and fit for the future, however, has increased the value quite a bit. Few properties can compare.