Riverside Centre - 142metres  40 storeys.  Completed 1986.  Harry Seidler & Associates.
Australia's Harry Seidler's 3-sided Riverside Centre paved the way for future river front office developments.  It incorporates an extensive plaza below that focuses on its position on the river and  is alive on the weekends as a place for the Sunday riverside markets.

Seidler's renowned use of sunshade awnings is prevalent on the Riverside Centre, something that should maybe  be used on all buildings in Brisbane's hot climate?  But the south-facing facade is notably absent in its awnings.  Why?  You tell me.  Someone told me that someone did not want to put them on that side because it would save some people some short-term money.  Take that short-term monetary saving and compare that to an increase in air conditioning loads per year and you will see that it was INDEED a very short-term superficial saving most likely.  They were sitting in a shed somewhere out Inala way and some GENIUS decided to recycle them on the 111 George St project by Robin Gibson Architects even though the architects there had painstakingly spent time designing their own unique awnings for that building, it nevertheless had the honour of having another building's awnings slapped onto it.  What an honour.
 
 
 

Riverside Centre on left as viewed from Waterfront Place from the south.