WHAT: An eight-bedroom, 11-bathroom estate in Aspen LOCATION: 651 Pfister Drive PRICE: $36 million SIZE: 14,000 square feet on 3 acres, built this year Built into a hillside that accentuates its zen rock garden, this masterpiece soaks in the sun with floor-to-ceiling windows. Doors to the outside are everywhere. Now, how does a house like this come about? “The motivation was: clients were asking for true mountain modern,” said Bob Bowden, the house’s designer and founder of Bowden Homes, a real estate developer integrated from design to construction to furnishing and brokering.