The building had to be demolished as it was irreparably damaged during the 2016 Kaikoura earthquake. That demolition started in April this year.
LT McGuinness site manager Rob Janes says the company is committed to minimising the environmental impact of their work.
He says many items were able to be repurposed and donated to schools and charitable organisations.
"We were able to donate a wide range of items, including tables, chairs, filing cabinets, dishwashers, plates, cups, and carpet tiles. We even salvaged some lights.
"Anything you can think of, we found a way to get it reused."
Most of the building materials such as steel, concrete and copper cabling have also been recycled.
"We sorted the steel into different grades, whether heavy or light gauge, and sent it for recycling," he explains.