[1] The proposal was shortlisted in Sir Howard Davies' Airports Commission's interim report.

[4] Available capacity would be doubled while keeping a percentage of the slots unused in order to alter noise levels.

This includes a new terminal, a new railway station connecting Heathrow to the West Coast Mainline and Crossrail and direct access to the M25 motorway.

[4] According to a paper published by the think-tank the Centre for Policy Studies, the Heathrow Hub proposal would cost ~£10 billion compared to the £65 billion estimated cost of the Thames Estuary Airport situated on the Isle of Grain and promoted by London Mayor Boris Johnson.

[4][6] Heathrow Hub estimates the cost of implementing its expansion plan to reach ~£12.5 billion, including road diversions and a train station.