Firefighters extinguish a previous blaze at the house. Photo by NZPA
Firefighters arrived about 5.40am at the Wainoni home where Tisha Lowry and Rebecca Somerville were discovered buried in September to find it well alight.
Greg Crawford, of the Christchurch Fire Service, told NZPA the home was now in the process of being demolished.
"It's too dangerous to leave it standing, especially with the northwesterly winds picking up," he said.
Locals gathered to watch the demolition this morning, saying they were pleased to see the house go.
Mrs Somerville's husband, Jason, pleaded guilty to murdering his wife and Ms Lowry, his neighbour. He will be sentenced on January 29.
