The New Old Age talks about NORCs (Naturally Occuring Retirement Communties):
Twenty-five years ago, a University of Wisconsin professor coined a great term for this kind of residence. It is a naturally occurring retirement community, or NORC. The place wasn’t built for seniors; its tenants are all ages, infants through nonagenarians. But a substantial number of residents have been there long enough to grow old together.
estanley 