What construction-cost range was estimated for Sydney Metro West in December 2025?
Sydney Metro West is a new underground railway between central Sydney and Greater Parramatta. A New South Wales parliamentary review records a December 2025 ministerial construction estimate of A$27–29 billion, up from an earlier A$25.32 billion estimate; this is a forecast for the whole line, not spending already incurred.
Published project estimate
AUD 28 billion
Approximately $18.04 billion
Cost basis: 2025
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Cost evidence
Basis of the published figure
Published project estimate2025