A window at the end of the hall looks out to a view.

“In Colorado, we get incredible weather seven months out of the year, and we design around it,” says Rowland, who created corridors of glass that hem the house and blur the lines between inside and out. This one leads to the children’s wing and allows access to the entry courtyard.

Perfect Harmony: An Aspen Home Mixes Modern Minimalism With Maximal Warmth