In December 2013, the Airports Commission failed to shortlist an estuary airport option, concentrating instead on expansion of Heathrow or Gatwick, butagreed to reconsider the estuary option and decide later whether to add it to the short-list.
In December 2013, Johnson suffered a setback when the Airports Commission failed to shortlist an estuary airport option, concentrating instead on expansion of an existing airport at Heathrow or Gatwick. However, the Commission undertook to give more study to the estuary option with a view to deciding in 2014 whether to add it to the short-list.