No way that I would buy there. 
They do NOT have enough water. Come a major drought, those homes will have to buy their water. They do not have access to much at all. 
And while Lennar has a cool concept, it has MAJOR issues. For starters, GE products. Serious QA issues. But, the other one that kills me is that they put their solar panels on all side of a house. The fact that the house faces north south does not matter. Instead of putting 100% of the panels on the south, they will put them on the north side as well. Those do NOT WORK. 
And the weird thing is, that they charge you for these (i.e. a lease), but these will put out less than 1/2 of the electricity that they will PROMISE you. And when I talked to the sales ppl there, one of them tried to tell me that I was wrong and that the north side was JUST FINE (idiot business ppl). Thankfully, he had a partner there who was smarter than he was. She acknowledged that as an issue.