The Rozelle Interchange project and Iron Cove Link are being delivered by Transport for NSW.

Tunnels connecting the mainline tunnels with the other sections of the road network via Rozelle. The M4-M5 Link project received NSW planning approval in April 2018.

Stage one - construction of the M4-M5 Link Tunnels between the New M4 at Haberfield and the M8 at St Peters and stub tunnels to the Rozelle Interchange. The contractor on this stage is Lendlease Samsung Bouygues Joint Venture (LSBJV). This stage is being managed by WestConnex.

Stage two - construction of the Rozelle Interchange and Iron Cove Link. The contractor on this stage is John Holland and CPB Contractors Joint Venture. This stage is being managed by Transport for NSW.

The Rozelle Interchange and Iron Cove Link will provide a new underground motorway interchange to City West Link and provide an underground bypass of Victoria Road between the Iron Cove Bridge and the ANZAC Bridge, with links to the proposed Western Harbour Tunnel.

The interchange in Rozelle will be mostly underground and located at the site of the old Rozelle Rail Yards. By building the interchange mostly underground, the project will deliver new active transport options in Rozelle and up to 10 hectares of new open space.

Environment and planning

Urban Design and Landscape Plan

Image: Artist impression of the Rozelle Parklands

The Urban Design and Landscape Plan (UDLP) outlines the urban design principles and objectives for the Rozelle Interchange project (the Project), including details of the transformation of the former Rozelle Rail Yards into a new open green space of up to 10 hectares, similar in size to Victoria Park near Sydney University.

When completed, the future Rozelle Parklands will have a wetlands with a boardwalk, picnic and BBQ areas, play equipment, pedestrian and cyclist paths, and green fields for leisure activities.

The Project is in the final stages of preparing a draft UDLP which will go on public exhibition and consultation in the coming weeks.

The pre-exhibition online values survey has now closed. Feedback received will help the Project understand the topics that are of most interest including key features of the UDLP the community would like to learn more about during the formal public exhibition and submission period.

There is also a factsheet that outlines further information about the upcoming UDLP.

Have a question?

Feel free to contact us on 1800 660 248 (toll free) and ask to speak to a member of the Rozelle Interchange project team or email us at


The Crescent overpass and active transport link Modification – Design Amendment

Image: Design improvements to the proposed The Crescent overpass and active transport links Modification

In August 2019, changes were proposed to the design and construction of the M4-M5 Link (Rozelle Interchange) as described and assessed in the 2017 Environmental Impact Statement (EIS). These changes were described in The Crescent Overpass and active transport links Modification Report (August 2019). Transport for NSW carried out a number of community and stakeholder workshops during the exhibition of this report, and as a result of the feedback and the formal submissions received, we reviewed the design we initially proposed. A design review process involved a design review and investigation with the commissioning of a Special Design Review Panel, additional community and stakeholder workshops and additional traffic and pedestrian modelling and assessment. 

In May 2020, the improved Modification design was on exhibition through a Design Amendment Report and the community were invited to make a submission. The submissions and our response during the last exhibition were also made available. To access the reports, please visit the NSW Department of Planning, Industry and Environment. 

The Community Guide provides an overview of the design review process, the proposed improvement to the Modification design and provides a summary of the issues raised in your submissions during exhibition in August 2019. 

Our Project experts presented on the refinements to the Modification design and answered questions via video link on Thursday 7 May 2020. 

Watch session one here 

Watch session two here 

You can use Chrome, Edge or Firefox for the video, however Safari is not supported. 

Download required: To join the session on a mobile device, download the Microsoft Teams app. To join a desktop computer, click ‘watch on the web instead’ or download the Microsoft Teams app. 

Determination for the Modification is expected in late June 2020. 

Read the responses to your questions we didn’t have time to answer during the live information sessions.

Iron Cove ventilation underground modification

The Iron Cove ventilation undergrounding Modification proposes to move above ground buildings underground and tunnel from the Iron Cove site. 

The Modification was on exhibition and available for community comment in December 2019. The Response to Submissions Report is available to view and the Modification is currently being assessed by the NSW Department of Planning, Industry and Environment. The Community Guide provides a summary of the changes and impacts described in the Modification report. To access the full Modification report, please visit the NSW Department of Planning, Industry and Environment. 

Project Stats

  • Current status :
  • Construction start :
  • Open to traffic :
  • Approved
  • 2019
  • 2023
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Environmental management is key to the successful delivery of the WestConnex projects. We have invested in project-specific environmental professionals to develop and operate under robust environmental management systems that advise, guide, monitor and report on our environmental obligations.

Related documents

WestConnex is committed to effectively managing air quality during the construction and operation of the WestConnex road network. Tunnel infrastructure includes state-of-the-art technologies such as monitoring and ventilation facilities, which help keep our air clean in our tunnels and nearby communities.

Find out more about air quality at WestConnex here.

The WCRG Rozelle Interchange is held with community members representing the suburbs of Lilyfield, Rozelle and Balmain. Representatives from the City of Sydney and Inner West Councils and the Department of Planning and Environment also attend. Representatives from Roads and Maritime Services include members of the Rozelle Interchange senior project and stakeholder engagement teams.

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