Nearly $3 billion worth of major road projects across Western Sydney have moved into the delivery phase, with contracts signed for five upgrades across the region. The NSW Government announced the projects on September 21, 2026, saying construction is expected to begin later this year.

The projects are being delivered across some of Western Sydney's fastest-growing areas and are designed to increase road capacity, improve intersections and strengthen connections between residential communities, employment areas and Western Sydney International Airport.

One of the largest projects is the second stage of the Mamre Road upgrade. The project is valued at about $1 billion and will upgrade 6.1 kilometres of Mamre Road between Erskine Park Road and Kerrs Road at Kemps Creek. The existing single-lane road will be converted into a wider two-lane road, with improvements also planned for important intersections and facilities for people walking and cycling.

A separate $1 billion project will upgrade Elizabeth Drive. The road will be widened to two lanes in each direction between Devonshire Road and Badgerys Creek Road. The project is intended to improve local connections while providing additional road capacity for traffic travelling towards Western Sydney International Airport.

Another major project is the Garfield Road East upgrade, which has a value of approximately $440 million. The road will be widened between Piccadilly Street at Riverstone and Windsor Road at Box Hill. The work is intended to improve connections through another rapidly developing part of Western Sydney.

The fourth project is Henry Lawson Drive Stage 1B, valued at approximately $247 million. It will deliver about 1.8 kilometres of dual carriageway between Auld Avenue at Milperra and the M5 Motorway. The project will provide two lanes in each direction while incorporating measures to protect adjoining bushland.

The fifth project involves The Horsley Drive at Horsley Park. The $190 million upgrade will widen approximately 650 metres of road between the M7 Motorway and Wallgrove Road to two lanes in each direction.

Together, the five projects represent almost $3 billion of infrastructure investment. The NSW Government says the projects are jointly funded by the Australian and NSW governments and are intended to support Western Sydney's continued growth.

Western Sydney has experienced substantial population and employment growth, increasing demand on major roads. The projects are therefore focused on expanding capacity and improving connections between residential areas, industrial precincts and major transport infrastructure.

The Elizabeth Drive and Mamre Road projects are particularly relevant to the developing airport and employment areas around Western Sydney. Better road connections are expected to support freight movements, workers and local communities as activity around the airport increases.

Additional projects are also progressing. The NSW Government said consultation is open for Spring Farm Parkway Stage 2, while designs for upgrades to Windsor Road at Rouse Hill and the Picton Bypass are expected to be displayed publicly in coming months.

At Sydney Olympic Park and Homebush, a separate $200 million upgrade of the Homebush Bay Drive, Australia Avenue and Underwood Road intersection is also progressing. Planning approval has been granted, with construction expected to begin in 2027. The existing roundabout will be replaced with a signalised intersection and additional lanes will be added.

The Western Sydney road program is therefore part of a broader infrastructure expansion across the region. The projects will be delivered progressively, with construction expected to start on the five newly contracted projects before the end of 2026.

For residents, businesses and commuters across Western Sydney, the upgrades are expected to bring changes to major transport routes as construction begins. The projects will also create new infrastructure around communities experiencing continued development.