A combined $600 million funding boost from the Federal and NSW governments will bring forward major upgrades to Elizabeth Drive and Fifteenth Avenue by a year, with construction now expected to begin in late 2026.

The additional investment includes $400 million for the Fifteenth Avenue Upgrade and $200 million for the Elizabeth Drive Upgrade, taking total funding for the two projects to $2.4 billion.

“By bringing forward delivery of Elizabeth Drive and Fifteenth Avenue, we’re supporting jobs, industry and better connections to Western Sydney International Airport,” Federal Member for Werriwa Anne Stanley said.

The projects are designed to ease congestion, improve safety and strengthen transport links to the new Western Sydney International Airport as Western Sydney’s population continues to grow.

“Western Sydney is home to one of the fastest-growing regions in the country, and these investments ensure its infrastructure keeps up,” Stanley said.

The Fifteenth Avenue project will be expanded to include improved bus infrastructure, enhanced access to residential and industrial precincts and the extension of Edmondson Avenue into the project scope.

The road will be upgraded to two lanes in each direction between Cowpasture Road and Devonshire Road, while also improving access to the Western Sydney Parklands.

The Elizabeth Drive Upgrade will include an additional 1.5 kilometres of duplicated roadway between South Creek and the M12 interchange, along with a major upgrade of the Elizabeth Drive and Martin Road intersection to improve access to the airport and surrounding employment hubs.

NSW Member for Leppington Nathan Hagarty said the investment would make a tangible difference for local families.

“For too long, locals have told me about being stuck in traffic just trying to do the everyday things — getting to work, dropping the kids off or getting home,” he said.

“This investment means easier, quicker and safer trips for the people who live and work here.”

NSW Minister for Roads Jenny Aitchison said the funding would help deliver infrastructure that matches the pace of Western Sydney’s growth.

“Better roads, less time stuck in traffic and infrastructure that finally matches the ambition of this extraordinary region,” she said.