 Other works by Laybourne Smith include the facade on the Balfours Cafe in Rundle Mall ( heritage listed in part due to the innovative " building envelope " , which is " independent of the internal structure " ) , the Repatriation General Hospital in Daw Park ( developed by Laybourne Smith from sketch plans produced by Melbourne firm Stephenson & Turner ) , and the South Australian National War Memorial . This last structure represents a collaboration between Laybourne Smith , Walter Bagot , and Sydney @-@ based sculptor Rayner Hoff . Although Walter Bagot produced the original design for the architectural competition in 1924 , his design was , ( along with the other entrants ) , deemed to be " unsuitable " . After the entries were destroyed by fire late that year , Laybourne Smith , working with artist Rayner Hoff , was able to redraw the design largely from memory in order to enter the subsequent 1926 competition . In doing so they built upon Bagot 's work , making the memorial " grander " in its scope — and this proved to be sufficient for the firm to be awarded the commission . 
