The possibility of Heathrow airport being expanded by a rival company has moved a step closer. Regulator the Civil Aviation Authority (CAA) announced that an alternative developer model is among four shortlisted options for how the west London airport could boost its capacity. This would be consistent with the Heathrow West proposal by hotel tycoon Surinder Arora’s company, Arora Group, to build, own and operate a third runway and new terminal at Heathrow. Mr Arora said: “Two years ago competition at Heathrow wasn’t on the cards and now is very much alive and kicking because the case for change is so strong. “We welcome this consultation from the CAA.” The airport’s owners – Heathrow Airport Limited (HAL) – are keen to obtain permission to deliver the expansion project themselves, arguing that a single body maintaining control of all terminals would be more efficient.…