Sydney, don't ask. You cannot retrofit sensors into apartment foundations. : Australian construction firm Taylor is looking into the use of sensors in the buildings it constructs to provide data on concrete gradings and weaknesses to customers once they are done. Speaking on a panel at Telstra Vantage in Melbourne on Thursday, Taylor IT manager Christian Neyle addressed the future of building inspections and touched on the recent Mascot Towers saga that has left owners with a AU$20 million repair bill after the apartment block began to crack.