The world’s first floating apartment complex, the Citadel, is part of a Dutch development called New Water. Here’s the Guardian with more:
The Dutch have been fighting the rising and falling tides for centuries, building dikes and pumping water out of areas that are below sea level. Now, rather than fight the water infiltrating their land, the Dutch will use it as part of a new development called ‘New Water’, which will feature the world’s first floating apartment complex, The Citadel. This “water-breaking” new project was designed by Koen Olthuis of Waterstudio in the Netherlands, and will use 25% less energy than a conventional building on land thanks to the use of water cooling techniques. – from Guardian