The energy mogul is looking to cash in on Aspen’s red-hot luxury market by offering up his massive property that’s replete ...

A sprawling Colorado estate long owned by billionaire businessman, sailor, and avid art and wine collector William “Bill” ...

The post Oil Billionaire Bill Koch Lists His Eco-Friendly 'Once in a Lifetime' Aspen Estate for $125 Million—More Than Four ...

After selling a portion of his Elk Mountain Lodge estate in Aspen, Colo., billionaire industrialist Bill Koch is trying again ...

For the third straight quarter, St. Louis, led as the top luxury housing market in the U.S., according to the latest Wall ...

William M. “Bill” Koch of Stuttgart passed away on Monday, Feb. 3, 2025. His parents were Martin W. Koch Jr. and Onabelle ...

Now, it seems he is ready to claw some of it back with the sale of his sustainable Aspen spread, telling the Wall Street Journal that he and his wife, Bridget Rooney Koch, made the decision to let ...

Billionaire Bill Koch has put his 16,600-square-foot log mansion on 52 acres in Aspen up for sale for $125 million. If it fetches that price, it would shatter the Colorado home price record.