I just love the way that accommodation for four wheel drives has been built into this concept. We can all pretend we live sustainable carbon-neutral lives if we ignore the several tonnes of metal we have to move every time we leave the house. However this vision of a life-sustaining ideal society of individual consumers of a prestige architectural product, enjoying "outdoor living" within the bounds of their private property, is incomplete without the defensive walls and battlements that will be necessary in the long term to keep the unsustainable mass of the population at bay.

In fact, the need to open out to public streets is a major strategic weakness. The dumb brutes who cannot afford it will be envious of your sustainability, and will inevitably try to take it by force. Have you considered helipads? While you're at it, a sprinkler system deploying chemical defoliants to create a cordon sanitaire around the sustainable compound, thus denying any attacking lower classes ground cover, would be a sensible move. I'm not being critical; nobody expects the first iteration of a product to be perfect. I'm just saying that once you've made the commitment to respond to the world's multifaceted problems within, and only within, your own four walls, you must be prepared to destroy the world in order to heal it.