A transparent picture of glass walls and slender structural steel elements, this Queenstown home looks ready for a warm summer. However, with triple glazed, argon gas-filled windows and doors that push the limits of glass efficiency, it’s ready for all the climate variables that mountain living brings. The concrete box to the right is the home sauna, accessed from the second-floor master suite and hall. In a home where nothing is ordinary, glass tubes in the concrete walls create lighting when the sauna is in use. Rock excavated for terraced levels was reused for gardens around the house and in the pools.