The specialist method, which has been used for more than a decade in Europe, will use two robots which will slowly "eat away" at the building from top to bottom over eight months.

The company contracted to do the job says the robots will allow Barangaroo Reserve to stay open to the public while minimising disturbance to local businesses and residents. “We’re on a headland, or in a park, we’re close to residences and housing so this application is very low impact and…