The combination of architectural design and virtual world design has lead to a rapidly expanding area of study and possibly the birth of a new profession. The potential as well as the uncertainty in the area of virtual architectural design are challenging to anyone who is concerned with our living environment, whether it is physical or virtual. Living in the virtual realm has raised the attention not only of architects, but also philosophers, social scientists and the wider academic and professional community. The discussion and debate on cyberspace will certainly remain an important branch of virtual architecture. In this paper we explore the potential and implications of architectural design in virtual worlds.