A statement from public relations firm Acumen said the "spectacular" house won the Southern Registered Master Builders House of the Year competition, in the Supreme House of the Year Over $1 million category.
The house also smashed the competition out of the ballpark in several other categories in the regional competition, including new home over $4 million, the Pink Batts Craftsmanship Award, the Plumbing World Bathroom Excellence Award, the Outdoor Living Excellence Award and a Gold Award.
The judges’ comments said the house showed an "outstanding team effort from the beginning".
Architects, builders, sub trades and interior designers had all worked tirelessly to "fulfil the homeowner’s dream" which included a complex structure and sophisticated detailing.
"It was a pleasure to judge this stunning home and fully appreciate the vision created," the judges’ comments said.
Trinity construction director Wayne Foley said the win on Saturday night came as a big surprise, as they had not thought much beyond building a great home.
"We are naturally delighted we did so well," he said.
The finished project had been three years in the making, and he was thrilled they were able to bring the owner’s concept to life.
They had a good relationship with the Australian-based owner, who was now considering spending at least half the year at the house.
"Its great for our reputation as a bespoke builder," Mr Foley said.
The build had been led by 23-year-old Boyd Van-Leeuwen, who had shown talent and good people skills.
He had got the best from all subcontractors and workers, Mr Foley said.
The firm had not yet decided how it would share its appreciation with its employees, but might have a bit of a shout.
The Registered Master Builders House of the Year website describes the house as "a home with personality-plus" which deliberately has nothing straightforward, and is a combination of luxury and whimsy.
Features include doors from a French abbey leading to the wine cellar, ostrich egg lighting and antelope horn handles.
