HS2 Cost Reset

BBC Business reported Tuesday that Britain’s embattled HS2 high-speed rail project could ultimately cost up to £102.7 billion. The announcement forms part of a formal government “reset” of a scheme long plagued by delays and budget failures.

Transport Secretary Announces the HS2 Cost Reset

Transport Secretary Heidi Alexander addressed the House of Commons with the updated figures. She placed the total cost range at between £87.7 billion and £102.7 billion in 2025 prices. That represents roughly double the range set under the previous Conservative administration, adjusted to 2019 prices.

Alexander attributed two-thirds of the increase to prior underestimates, inefficient delivery, and missing works from the original scope. Inflation accounts for the remaining third. She described inheriting a “litany of failure” and did not soften her language about the scale of mismanagement.

Services are now expected to begin between 2036 and 2039. That is up to six years beyond the most recent official target of 2033. A full connection from London Euston to Birmingham Curzon Street is not anticipated until somewhere between 2040 and 2043.

Background: A Project Scaled Back Repeatedly

HS2 was originally conceived to link London, Birmingham, Manchester, and Leeds. Former Conservative prime ministers later cancelled the northern legs, reducing the scheme to a London-to-Birmingham corridor only. As of March 2026, £44.2 billion has already been spent on the programme.

The project’s original top speed target of 360km/h has also been abandoned. Trains will now be capped at 320km/h, bringing HS2 in line with comparable high-speed services across Europe and Japan. The government says that reduction could save up to £2.5 billion and shave roughly a year off the delivery timeline.

Also Read: What Is HS2 and Why Has It Been So Controversial?

Government Vows Delivery Despite Mounting Pressure

Mark Wild, chief executive of HS2 Ltd, has been set an internal target of completing the project by 2037 at a cost of £92.2 billion. Alexander said the government backs that mandate fully. Wild acknowledged the update would be unwelcome for affected communities and taxpayers, but described the reset as necessary to restore control.

Shadow transport minister Jerome Mayhew accepted early failures were real, but called on both Alexander and HS2 Ltd to publish detailed plans. He argued that anger alone must translate into structural legislative changes to prevent future overruns.

Independent reviewer Andy Meaney, who contributed to the Oakervee HS2 review commissioned in 2019, said the speed reduction decision should have been made years earlier to reduce costs significantly.