Walled and gated residential neighborhoods have become a common feature within US metropolitan areas. As a standardized form of urban product, these neighborhoods represent a form of urbanism where public spaces are being privatized. In the most recently urbanized areas, they represent an increasing part of the new homes market and they have thus become a symbol of contemporary metropolitan fragmentation and social segregation. They not only enclose space but they also actively select residents through restrictive covenants as well as through life style marketing and price. Because they are managed as private corporations, there is perhaps an injevitable tendency to seek political and fiscal independence through a process of municipal incor...