Billionaire Homes: Take a Look at Bill Gates' $138 Million Mansion

Bill Gates, the former CEO of software giant Microsoft and one of the richest people in the world, lives in a massive mansion in Medina, Washington, that is valued at a whopping $138 million.

Gates, who has a net worth of $119.1 billion as of Tuesday, purchased his Washington mansion for $2 million in 1988. He renovated the mansion over seven years, spending a total of $63 million. According to the King County public assessor's office, the property is worth $138.84 million as of 2023.

Inside Gates' $138 Million Mansion in Medina

Gates' Washington estate, named "Xanadu 2.0," after the fictional home of "Citizen Kane" title character Charles Foster Kane, spans 66,000 square feet. It also features six kitchens, an enormous library housing expensive manuscripts, a home theater, seven bedrooms, and 18.75 bathrooms, per Business Insider, citing public records.

The mansion, which required 100 electricians and 200 construction workers to build, features plenty of high-tech details. One of these high-tech features includes a sensor system that helps guests monitor and customize the temperature and lighting to their preference.

In addition to the sensor system, the mansion is also equipped with numerous speakers hidden behind wallpapers. These speakers allow music to follow guests from room to room.

The mansion is fitted with over $80,000 worth of computer screens, allowing guests to display their favorite paintings or photographs at the touch of a button.

Outside the mansion, there is a 3,900-square-foot building housing a 60-foot pool. People swimming in the pool could go under a glass wall to come up to a terrace area on the outside. The pool also has its own underwater music system to entertain guests.

The mansion's exercise facilities, spanning a total of 2,500 square feet, include a sauna, steam room, locker rooms, and an indoor trampoline.

Lastly, the property has a 2,300-square-foot hall that could seat up to 150 people for a seated event or 200 people standing up for a cocktail gathering, per US News. One side of the hall features a six-foot-wide limestone fireplace, while another has a 22-foot-wide video screen.