Heinz Siller (1884–1946) studied natural science at the University of Vienna (1902–03) and architecture under Max Fabiani and Karl König at the Technische Hochschule (1904–11). He then worked for several ateliers before the outbreak of the First World War, after which he returned to Vienna and formed a successful partnership with Paul Fischel (1921–38). At the Werkbund Estate, he and Fischel furnished house no. 54 by Gerrit Thomas Rietveld. In 1938–42, Siller worked as an independent architect with various partners. Alongside houses, factories, and business premises in Austria and the Czech Republic, Siller also submitted designs for the fashionable ‘Weekend Movement’, including standard houses intended for serial production and pre-fabrication.