Cardinia Mayor, Brett Owen, told Melbourne Radio's Justin and Kate it’s something the council has been advocating for years.“We welcome this indication of private investment,” he said, adding that it would help alleviate traffic on the under-siege Monash Freeway.

“We can not just keep going on that Monash,” he said.

“It’s clogged up every day.

“We need an airport for the south-east.”

Co-director of Paragon Gerard Kennedy told Tony Jones the first planes could land within 4-5 years.

“We’ve got the support already there,” Mr Kennedy said.