HS2 costs climb to £102.7bn as government plans slower trains and 2039 completion

Britain’s troubled HS2 railway could end up costing as much as £102.7 billion in 2025 prices, with services running more slowly than originally planned, as the government prepares another reset of the long-delayed project. The new estimate, due to be set out by Transport Secretary Heidi Alexander, reflects years of rising costs, delays and major scaling back of the line, which was once intended to transform journeys between London and the Midlands and beyond.

According to the BBC, the revised figures mean the price of HS2 has climbed well above earlier expectations, while the railway’s design has also been adjusted. Trains on the new route are expected to run at lower speeds than first proposed, marking another step away from the project’s original ambitions of creating a full high-speed network. The announcement comes as ministers try to bring greater certainty to a scheme that has repeatedly been reshaped by political decisions, engineering challenges and financial pressure.

The latest reset follows a series of cutbacks that have already changed HS2 dramatically. The eastern leg to Leeds was cancelled, and the remaining work has been focused on the line between London and Birmingham, with questions continuing over how far and how fast the project can ultimately be extended. As reported by BBC News, the government is now treating the railway less as a single grand build and more as a phased scheme that may be completed in stages over many years.

Even with the latest setback, officials have not abandoned the wider idea of a full HS2 network. BBC analysis by Faisal Islam says ministers still believe parts of the railway could eventually be extended, with Transport Secretary Heidi Alexander indicating that the line would not be fully completed until 2039. That suggests the project remains alive, but on a far longer timetable than originally promised and with a significantly reduced scope from the version first sold to the public.

The stakes remain high because HS2 was meant to do more than speed up travel. It was designed to add capacity to Britain’s crowded rail system, shorten journey times, and support economic growth by improving connections between major cities. Supporters argue that those goals still matter, while critics see the latest figures as further evidence of poor control over one of the country’s most expensive infrastructure projects.

What happens next will depend on how the government chooses to manage the remaining work, what further changes ministers are willing to accept, and whether costs can be contained any better than before. For passengers, businesses and taxpayers alike, the key question is no longer just whether HS2 will be built, but what form it will take, how much of it will survive, and whether the final railway will still deliver the benefits once promised.