Government Unveils Heathrow Third Runway Plan: M25 Relocation, Climate Targets Detailed
The government has released its blueprint for a third runway at Heathrow, asserting that airport expansion is "critical to national growth". Transport Secretary Heidi Alexander initiated a consultation on the revised Heathrow Expansion National Policy Statement (HENPS), which specifies the prerequisites for the project's authorisation.
Two expansion proposals for Heathrow have been previously submitted. Heathrow Airport Limited (HAL) advocates for a 3,500-metre runway, a scheme estimated at £33 billion, including £1.5 billion for relocating the M25 motorway. This privately financed project aims to increase Heathrow's capacity to 756,000 flights and 150 million passengers annually.
Conversely, businessman Surinder Arora has proposed a 2,800-metre runway that would circumvent the need to move the M25. Despite this, Alexander indicated her preference for a full-length runway last November, reiterating the government's view that the HENPS-covered development is crucial for national prosperity.
The draft HENPS mandates that applicants demonstrate how the existing transport infrastructure will manage increased passenger volumes, including how road and rail improvements will be implemented. Furthermore, the expansion must align with the UK's legally binding climate objectives, prevent new breaches of air quality limits, and ensure noise emissions do not surpass 2024 levels, with reductions pursued where feasible.
Chancellor Rachel Reeves expressed determination to see the third runway constructed by 2035, contending that Heathrow is currently "not punching its weight" as a hub airport and epitomises the UK's historical difficulty in delivering major infrastructure projects. Heathrow chief executive Thomas Woldbye welcomed the government's step, stating that the UK's economic potential cannot be fully realised without an expanded Heathrow.
However, Alethea Warrington, head of aviation at climate charity Possible, criticised the government's position, labelling it "fantasy land" thinking to believe a new runway can be built without exacerbating noise pollution, air quality, or climate targets.
