A floating island and apartments perched over roads and old buildings are just some of the ideas for how Singapore could overcome its land shortage, as the show Land Unlimited discovers.

SINGAPORE: Mr Shinichi Takiguchi has visited Singapore several times, and from the windows of his hotel room, all he can see is the sea. He believes that will change in future.

The managing executive officer at construction giant Shimizu Corporation is part of a team working on building a floating city for upwards of 50,000 people. And they have been poring over maps of Singapore, discussing potential locations.

They are sure that what they call the Green Float will be part of the sea view here one day – with homes at the top, offices in the middle, vegetable farms at the bottom and beaches around it.