But as the market catches up to the demand for more mixed use communities, the United States could see a notable structural transformation in the way its population lives -- Arthur C. Nelson, director of Virginia Tech's Metropolitan Institute, estimates, for example, that half of the real-estate development built by 2025 will not have existed in 2000.
Yet Nelson also estimates that in 2025 there will be a surplus of 22 million large-lot homes that will not be left vacant in a suburban wasteland but instead occupied by lower classes who have been driven out of their once affordable inner-city apartments and houses.
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