KEY POINTS:
The Hills clubhouse at jeweller Michael Hill's property near Arrowtown will show off its environmental design features when the New Zealand Golf Open starts tomorrow.
The unusual building, designed by Auckland architect Andrew Patterson, is the headquarters for the tournament.
Because it was recessed into the ground it had high levels of thermal insulation, Patterson said.
Double glazing and wide eaves retain heat in winter but maintain a relatively even temperature in summer.
"Inside, the feeling is intimate, with spaces designed to be easily adapted to different uses. Golf ball dimple patterns give rhythm and symmetry throughout the building, including the changing rooms."
Patterson paid special attention to the acoustic qualities because Hill is a violinist. The clubhouse has a colour-therapy spa set underground.
The building is naturally ventilated and does not rely on energy-intensive air-conditioning.
Heating comes from an embedded underfloor system fed by a bio-fuelled boiler. "Bio-fuels are virtually carbon neutral, absorbing as much carbon dioxide in their growth cycle as they emit when burnt as a fuel," Patterson said.