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

You’ll have to boast a particularly robust bank account to nab billionaire Bill Koch’s newly listed wintry Colorado retreat.

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

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

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

This is not the first time Bill Koch has listed the home for sale.

The property, at 125 Rooney Circle, boasts a rustic main residence with 16,631 square feet with seven bedrooms and eight ...

Forbes said the 84-year-old lives in Florida with a real-time net worth of $2 billion — and after this house sale, he’ll be a ...

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

After selling a portion of his Elk Mountain Lodge estate in Aspen, Colo., billionaire industrialist Bill Koch is trying again to unload the rest of the property. This time he’s asking $125 ...