MP for Orpington Jo Johnson said: "Fears of the airport's expansion has been a matter of tremendous concern to my constituents – in particular the fear that any temporary change to the lease could be exploited by Biggin Hill through the courts to eventually seek a permanent revision of the lease."

Amongst other concerns was the airport's close proximity to the Princess Royal Hospital in Farnborough, with reports that doctors and nurses have to stop talking to patients as planes fly over.

Other councillors said Biggin Hill had made a weak business case and there would be no financial benefit to the borough.

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