London Mayor’s Estuary Airport Plan Backed by 21% of Residents

London Mayor Boris Johnson’s proposal to build a new hub airport in the Thames estuary is only backed by one in five of the U.K. capital’s residents, a poll found.

The expansion of Heathrow or one of the other existing London airports has the support of 53 percent of Londoners, while 21 percent want Johnson’s proposed new four-runway hub airport to the east of the city, the survey by YouGov Plc found.

The potential expansion of Heathrow, Stansted or Gatwick aiports is currently being reviewed as part of an investigation into U.K. airport capacity led by Howard Davies, a former chairman of the Financial Services Authority. Prime Minister David Cameron set up the inquiry, which will delay a decision on the expansion of Heathrow until after the 2015 general election.

A panel of House of Commons lawmakers said May 10 that Heathrow should be expanded with the addition of a third and even a fourth runway, while they rejected Johnson’s proposal for a new hub airport in the Thames estuary.

YouGov questioned 1,289 adult Londoners online between July 5 and July 8. No margin of error was given.