South Island schist features extensively on the outside walls and pillars, and helps create a sense of arrival at the main entrance.
"The house, which we have named Okareka Lakehouse, is also used as a lodge, so the entrance had to make a strong statement," says Cook. "For this reason also, the lake and mountain views can be glimpsed from the entrance foyer through the dining room."
As well as the dining room and entrance, the central part of the house includes the kitchen and casual dining areas. A master bedroom suite, library and guest bedrooms are positioned on the floor above.
The wing to the left of the entrance contains two living rooms on the main floor, with a home theatre, wine cellar and garaging on the lower level. The other wing houses additional guest bedrooms on the main level. All the living rooms and bedrooms have lake views and balconies with large overhangs and cedar-lined soffits that add a Balinese resort feel to the house.
In keeping with this look, solid kwila flooring was specified throughout the house. South Island schist was also introduced to the interior, surrounding a large, double-sided fireplace that serves the two living rooms. Other natural materials include the stone flooring that features on the terraces and in the bathroom suites.
"These tiles come from a geothermal area and incorporate a silica deposit," says Cook. "We felt it was an appropriate material for this house as it is reminiscent of the former pink-and-white terraces that existed before the Mt Tarawera eruption this is the same mountain we see across the lake."