The documents, made public after a request by deputy Liberal leader Natalie Ward, describe Schofields as the “optimal interchange location” because retro‑fitting a station at Tallawong on the existing M1 line would be technically complex.
A ministerial briefing outlines a scenario in which both the Northwest metro and the Western Sydney Airport metro are extended to Schofields, creating a single point where passengers can transfer between the two metro services and the T1 Richmond suburban rail line.
The briefing also notes that delivering the connection would require separate public‑private partnership arrangements for the M1 line and the under‑construction Western Sydney Airport metro, adding contractual complexity to the project.
Early feasibility work considered a “first stage from Schofields to Tallawong” and examined the suitability of a protected transport corridor between Tallawong and Marsden Park, indicating that planners have been evaluating multiple alignment options.
The NSW government is allocating up to $40 million to complete the final business case for a St Marys‑to‑Tallawong metro extension, while a joint NSW‑Commonwealth fund of $100 million is earmarked for a “Bradfield South” business case that could link the new Bradfield station near Western Sydney Airport to Leppington, Glenfield or Campbelltown.
A 2023 confidential review, led by former federal infrastructure secretary Mike Mrdak, recommended spending up to $4 billion a year on metro expansions over the next 25 years. It proposed a phased rollout: a Bradfield‑to‑Bradfield South extension by 2032 at a cost of $2.3 billion, followed by a heavy‑rail link from Leppington to Bradfield South by 2033 for $4.6 billion; a northern airport‑metro extension from St Marys to Schofields by 2037 costing $9.6 billion; and a continuation of the M1 line from Tallawong to Schofields by 2039 for $3.2 billion.
Construction of the 23‑kilometre metro line between Bradfield and St Marys, slated to serve the Western Sydney Airport, has been delayed by about 18 months after a dispute with the lead contractor, a delay Transport Minister John Graham said the government is working to resolve while protecting taxpayer funds.
Graham confirmed that the final business cases for both northern and southern extensions are “largely complete” and will be presented to the cabinet before the end of the year. Opposition leader Kellie Sloane warned that if the Coalition wins the March election, the continuation of metro projects will become a central element of a new state‑Commonwealth city deal.
While the plans remain at the business‑case stage, the released briefings make clear that Schofields is being positioned as a pivotal hub in the long‑term vision for an integrated heavy‑rail and metro network across Greater Sydney.