Garreau's concept of an ''edge city'' is discussed with regard to Lond
on and northwest Europe. It is argued that the employment of geographi
cal information systems (GIS) will enable new forms of planning which
have a degree of flexibility and responsiveness not found in tradition
al planning systems. Electronic networks can help to democratise a pla
nning system and to generate plans which transcend the administrative
boundaries of older cities. Greater integration between physical plann
ing and the free market may also be possible. The argument is illustra
ted with reference to practice in the Paris region, the Netherlands, B
elgium and the South England Edge City (SEEC). (C) 1997 Elsevier Scien
ce B.V. ALI rights reserved.