Bahria Town founder and former chairman said that the project, Bodha Island City, would be developed 3.5 km off the coast of Karachi at a cost of Rs15-20 billion.
Earlier, Bahria Town spokesman said Bodha island, which covers 12,000 acres of land, will be developed in five to 10 years.
He said that people would get possession of the houses by 2016, adding that the island will have the biggest building in the world in addition to a net city, education city, health city, report city and other infrastructure.
The spokesman said the safe city will have its own water and power. He said sea water will be made drinkable through a modern treatment plant and the safe city will generate energy for its 100 per cent needs on its own.
He said the project would create 2.5 million jobs. He said the island will have 125,000 houses and its population will be one million.