2004 has been declared The Year of the Built Environment in Australia. The declaration appears to have been initiated by the Architects, primarily the Royal Australian Institute of Architects. It is being 'hosted' by Western Australia, though it is sponsored by the Commonwealth (Federal) Government.

The above link tells you as much as I know - it has an air of being hastily prepared and is short on detail but if anything interesting comes up, I will let you'all know.