Heathrow's computer generated video of the options for the 3rd runway.
Heathrow has revealed three options for a 3rd runway which they call "a new approach". Its Chief Executive Colin Matthews says a 3rd runway is essential for the UK.
Option 1 is for a new runway to the North West obliterating 950 properties in Longford & Harmondsworth. @itvlondon
Option 2 is for a runway to the SW, involving the demolition of 850 homes at Stanwell Moor. @itvlondon
Option 3 is a runway to the north on top of Sipson, Harlington & Cranford. 2,700 homes would go. @itvlondon
Boris Johnson has insisted he won't allow a third runway to be built at Heathrow Airport, amid speculation that senior Tories want to revisit the idea.
The Conservative Mayor of London, fighting for re-election in May, says the move would be "intolerable" for people in the west of the capital.