The overall construction cost of the tower is $1.2 billion.
Alwaleed bin Talal is reportedly spending $500 million on a fully customised A380 from Airbus.
Saudi Prince Alwaleed bin Talal bin Abdulaziz Alsaud, chairman of Kingdom Holding company will become the first private owner of A380 Flying Palace, Airbus said.
It is not every day that one of the planet's richest men is arrested by his government.