Westlink M7 Widening

Transport for NSW’s proposal to widen the Westlink M7 and connect it with the new M12 Motorway has received Stage Three approval through the NSW Government’s Unsolicited Proposal Process. The Project remains subject to planning approval. The Project was proposed by the Concessionaire of the Westlink M7, WSO Co Pty Limited. It includes widening the Westlink M7 for 26 kilometres between the M5 Motorway interchange at Prestons and Richmond Road at Oakhurst/Glendenning, building the M7-M12 interchange and a connection between Elizabeth Drive and the M12 Motorway.

Pending planning approval, construction would start in 2023 and is anticipated to take up to three years to complete.

The Westlink M7 is a key transport route for Greater Sydney, and it regularly experiences congestion.

Transport for NSW proposes to widen the Westlink M7 within the existing median by adding one lane in each direction. The widening would occur between the M5 interchange at Prestons, approximately 140 metres south of the Kurrajong Road overhead bridge and the Westlink M7 bridge at Richmond Road in Oakhurst/Glendenning.

Once complete, there would be three lanes of traffic in each direction. The widening would not occur through the Light Horse Interchange at the M4 Motorway.


Benefits of widening the Westlink M7:

  • Ease congestion by enabling faster and more reliable connections between Sydney’s South West and North West
  • Better and more reliable trips for people, businesses, and freight
  • Improve journey times to planned growth areas and the new Western Sydney International (Nancy-Bird Walton) Airport.


To know more

To know more about the Westlink M7 Widening Proposal please contact the project team on 1800 568 970, email M7widening or visit Transport for NSW website.


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Project news

  • July 2022
    Investigation work

    As part of the environmental assessments for the Modification Report, Transport is carrying out geotechnical investigations within the central median of the Westlink M7 over 36 nights shifts from Friday 24 June to Sunday 7 August 2022. Our work hours are from 9pm to 5am, Monday to Saturday, weather permitting.


    Our work needs to be carried out at night to minimise traffic disruption and reduce safety risks to our workers and motorists. The investigation work may be noisy at times, but we will do everything we can to minimise its impact, including completing noisier tasks by midnight. We will spend no more than two night shifts in a row in one area.

    Traffic changes

    There will be some temporary traffic changes during our work hours to make sure the work zone is safe. For the latest traffic updates, call 132 701, visit livetraffic.com or download the Live Traffic NSW App.

    We apologise for any inconvenience and thank you for your patience during this work.

    View or download the June Westlink M7 Widening Community Update (PDF, 395 KB)