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NSW Department of Planning, Industry and Environment
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The Sydney Metro Western Sydney Airport project is a proposed driverless metro railway line between St Marys and Bringelly, which will service the future Western Sydney International (Nancy-Bird Walton) Airport and the Western Sydney Aerotropolis, interchanging with the T1 Western Line at St Marys.


Key features

The Sydney Metro Western Sydney Airport project includes:

  • A turn-up-and-go metro service between St Marys and Western Sydney Aerotropolis
  • Six new metro stations at St Marys (connected to the existing railway station), Orchard Hills, Luddenham Road, Airport Business Park, Airport Terminal and Aerotropolis
  • Modifications to St Marys railway station to support the transport interchange; A stabling and maintenance facility and operational control facility at Orchard Hills
  • Infrastructure works including transport interchanges, car parking, active transport connections and public domain works to support station precincts.


Consultation and feedback

The State Significant Infrastructure application, Environmental Impact Statement (EIS) and accompanying documents for the Sydney Metro Western Sydney Airport were on public exhibition from 21 October 2020 until 2 December 2020.


The department welcomed feedback from the community, government agencies and other stakeholders during public exhibition. Your feedback will help us better understand the opinions and concerns of the community, which will inform our assessment of the project.


All documents related to the application, including the EIS are available to view on our Major Projects website.



Elements of the project located outside the Western Sydney International Airport site have been identified as State Significant Infrastructure (SSI) under the Environmental Planning and Assessment Act 1979.


The proponent has sought a Critical State Significant Infrastructure declaration for the project.


The SSI determination will not apply to parts of the project located within the Airport site, these parts will be subject to assessment and determination under the Airports Act 1996. However, the department’s assessment will have consideration of the whole project.


More information

To find out more about the Sydney Metro Western Sydney Airport proposal, you can:


Proposed metro line alignment map

The map below shows the proposed Western Sydney Airport line, including the six new metro stations.

Note: you can click on the Sydney Metro map below to view a larger version.

Western Sydney Airport line alignment map October 2020


Page last updated: 25/02/2021