HS2 Phase One (Old Oak Common–Birmingham, Euston tunnel)

StageIn construction (tunnelling machines working towards Euston; government reset, May 2026)
Value£87.7bn to £102.7bn revised estimate (May 2026)
Next milestoneFirst services Old Oak Common to Birmingham Curzon Street between 2036 and 2039
Last checked1 November 2026

Source: Department for Transport (GOV.UK) / HS2 Ltd →

What has changed on this project, and when

Next milestone: First services Old Oak Common to Birmingham Curzon Street between 2036 and 20392 November 2026 · previously: Euston tunnel drives continue through 2026; first services Old Oak Common–Curzon Street 2036–2039
Stage: In construction (tunnelling machines working towards Euston; government reset, May 2026)2 November 2026 · previously: In construction
Value: £87.7bn to £102.7bn revised estimate (May 2026)2 November 2026 · previously: £87.7bn–£102.7bn revised estimate (DfT reset, May 2026)

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