Wellington Airport runway extension cost could blow out to $458m, says expert

• The $300 million price-tag for Wellington Airport’s runway extension could blow out to $458m, and may even soar as high as $507m, an independent expert says.

The much-vaunted $2.3 billion in economic benefits expected to flow from the extended runway may have also been overstated to the tune of almost $800m, according to a new council-commissioned report on the project.

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SUPPLIED. Wellington Airport wants to extend its runway south into Lyall Bay by 354 metres.