HS2 Costs Hit £102.7bn as Speeds Cut and Timelines Delayed

The UK government has announced a major reset of HS2, with projected costs rising to £87.7bn–£102.7bn in 2025 prices and £44.2bn already spent. Top speeds have been reduced from 360 km/h to 320 km/h to save up to £2.5bn, while partial services are now expected between 2036 and 2039 and full operations between 2040 and 2043. The shift follows a government review that blamed earlier problems on an excessive focus on high speeds and political pressure that drove gold-plating and cost inflation. Ministers frame the changes as essential to regain control of the over-budget project, though the fiscal burden and prolonged political risk could weigh on UK-focused equities and investor sentiment toward large infrastructure delivery.