The legal challenge was brought by a number of objectors, including the 51M group of local authorities opposed to the route, mainly because it passes through their authorities. Heathrow Hub, who want to see the route varied to include an HS2 station built on land they own near Heathrow Airport, were also .
However, the court has rejected several challenges based on perceived Government infractions including breaching an EU directive by failing to carry out a strategic environmental assessment, and a breach of the Environmental Impact Assessment Directive.
The BBC reports that further challenge on these issues will be limited, as there is no right of appeal to Europe, although Hillingdon Council say they “are now actively exploring with our legal team the possibility of making a complaint to the European Commission.”
Hillingdon continue to oppose the line, they have already brought a further judicial review challenge, jointly with HS2 Action Alliance, on the basis that they believe Government failed to carry out a Strategic Environmental Assessment before issuing Safeguarding Directions. This challenge was hold pending the Supreme Court judgment.