M7, 2km Cowpasture Road exit sign

Westlink M7 Widening

Transport for NSW is proposing to widen the Westlink M7 by adding an extra lane each way within the existing median between the M5 interchange at Prestons to Richmond Road, Glendenning. Widening the Westlink M7 would improve journey times for freight and motorists and support the future M12 Motorway and the Western Sydney International (Nancy-Bird Walton) Airport.

Latest news

JUN 2022

JUN 2022Opportunity for Aboriginal knowledge holders and

storytellers to register interest in the Westlink M7 Widening

Transport for NSW is inviting Aboriginal knowledge holders and storytellers with a connection to the area and lands surrounding the Westlink M7 Widening to register their interest.

We are looking to:

  • Identify key cultural values or features within the project footprint
  • Gather stories to document to give back to the community, and educate Transport’s personnel and contractors
  • Inform an environmental impact assessment under the Environmental Planning & Assessment Act 1979.

How to register your interest

Spaces are limited. Please contact us by email or phone 1800 568 970 with some brief information about your work, yourself and your connection to the area by Wednesday 13 July 2022.

JUN 2022

JUN 2022Project update

The Westlink M7 Widening is currently in planning. As part of the Modification Report, we will carry out a Social Impact Assessment to understand how communities and businesses currently use the Westlink M7 and how construction and operation of the Westlink M7 widening may impact them.

As part of the environmental assessments for the Modification Report, Transport is carrying out geotechnical investigations within the central median of the Westlink M7. More information can be found in the notification (PDF, 296Kb).

Project information

Transport for NSW is proposing to widen the Westlink M7 within the existing median by adding one lane in each direction between the M5 interchange at Prestons, approximately 140 metres south of the Kurrajong Road overhead bridge (southern end), to the Westlink M7 bridge at Richmond Road in Oakhurst/Glendenning (northern end). Once complete, there will be three lanes of traffic in each direction. The widening would not occur through the Light Horse Interchange at the M4 Motorway.

By increasing capacity and easing congestion, the widening would improve journey times for freight and motorists and alleviate pressure on some of our city’s most critical transport corridors. Increased capacity on the Westlink M7 would also support the future Western Sydney Aerotropolis and surrounding growth areas.

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.

Transport for NSW is investigating widening the Westlink M7 Motorway using the existing median. The assessment of the proposed widening is being done through a Modification Application to be lodged with the Department of Planning and Environment (DPE).

Transport for NSW will prepare a Modification Report to assess the impacts widening the Westlink M7 may have on the surrounding environment and community. The Modification Report will be put on public exhibition for stakeholders and the community to provide feedback. Once the consultation period is closed, Transport for NSW will review and respond to submissions before the Minister determines the widening application. The scope of the Modification Report is covered in the Secretary’s Environmental Assessment Requirements (SEARs) which can be found on the DPE website.

The Modification Report is currently being prepared and will be placed on public exhibition when lodged with DPE (targeting mid 2022).

Projects documents


Contact us

If you have any questions or would like to subscribe to future updates about this project please contact the project team via:

Phone: 1800 568 970

Email: m7widening@transport.nsw.gov.au

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