Chinese state media reports Sky City does not have required permits to start construction . Sky City , developed by Broad Group , planned to be world 's tallest building at 838 meters . The company said it was working with the city and authorities on a plan for safety measures in case of an earthquake or other natural disaster that could cause damage to its buildings. Penalties for illegal construction vary widely across China between the countryside and cities , as well as between residential and commercial use . : 'We have not yet started work ' Broad Group will use pre-fabricated steel-concrete blocks to build Sky City by April 2014 .
Chinese state media reports Sky City does not have required permits to start construction . Sky City , developed by Broad Group , planned to be world 's tallest building at 838 meters . The company said it was working with the city and authorities on a plan for safety measures in case of an earthquake or other natural disaster that could cause damage to its buildings. : 'We have not yet started work ' Broad Group will use pre-fabricated steel-concrete blocks to build Sky City by April 2014 .