TRANSPORT Secretary Grant Shapps has cast some doubt on Heathrow expansion in his first public comments on the issue.

He told Sky News there were questions over whether the whole plan stacked up and that Heathrow had to ensure it generated enough income to justify the billions being spent on the project.

Mr Shapps also mentioned the upcoming legal challenge, which will be heard (and live-streamed) at the Court of Appeal from Thursday, October 17.

Rob Barnstone, of Stop Heathrow Expansion, said: “This refreshing move, compared with Mr Shapps’ predecessor, acknowledges the serious hurdles that Heathrow is as far as ever from overcoming.

“Whether it is the overconfidence of being able to deliver the necessary funds for this project or the catastrophic environmental impacts, it is becoming clearer that a third runway [can’t] be delivered on time or budget and certainly does not fit within the Government’s environmental commitments of net zero emissions by 2050.”