Zombie Subdivisions and "Pig In The Python" Shadow Inventory -- These idled, “zombie” subdivisions can be found across metro Atlanta, but they’re most prevalent in outer-ring suburban areas. Selling them has proven tough, with some properties sitting on the market for months on end without even a nibble.

http://globaleconomicanalysis.blogspot.com/2009/08/zombie-subdivisions-and-pig-in-python.html