Neu Wieden

I went to school in Crawley New Town, one of the 9 or so outside the Green Belt, and  interesting that when living in the 4th district 1999-2003 I came up with idea and intention to build a town of 40,000 modelled on the 4th district...then i realised that others are/were building towns in deserts in the middle east, and now   It seems others have similar ideas too 

Billionaire Bill Gates recently acquired 28,000 acres in Arizona to create his own city called Belmont. According to the company announcement; "Belmont will create a forward-thinking community with a communication and infrastructure spine that embraces cutting-edge technology, designed around high-speed digital networks, data centers, new manufacturing technologies and distribution models, autonomous vehicles and autonomous logistics hubs." The company details the plans including; 3,800 acres for office, commercial and retail space, 470 acres for public schools and there are plans for 80,000 residential units. "Belmont will transform a raw, blank land into a futuristic city built around a flexible infrastructure model" added Belmont Properties.

source Forbes