Perth emigre architect Iwan Iwanoff was most famous for his incredibly unique sculptural brutalist houses in the 1970s. But long before this he designed some stunning homes dating back to this one built in 1958 for the German consul in Perth, Siegfried Schmidt-Lademann and his family. Kate Borland chatted to Iwanoff’s biographer Warren Anderson and Iwanoff’s son Michael about Iwanoff’s timeless contribution to Perth architecture.