[3] It is unclear whether the move from democratic Prague to Berlin (since 1933 the capital of an openly post-democratic state) was politically motivated, or driven simply by the economic opportunities: certainly debt funded economic growth had by this time triggered a building boom in Berlin which provided plenty work opportunities for an ambitious young architect.
[4] Between 1941 and 1945 Josef Kaiser was head of the "Basic conceptual planning" ("Grundrisstypenplanung") department at the "Germany Academy for Residential Housing" in Berlin-Buch.
[2] Although he lived and worked in what had become, in the eyes of many, Germany's second one-party dictatorship, at least one source asserts that he never did become a party member, which would make Josef Kaiser's stellar architectural career during the 1950s and 1960s all the more remarkable.
[2] In 1962 he took charge of Development Collective for the Second Phase redevelopment programme of East Berlin's prestigious Karl-Marx-Allee (extending from Strausberger Platz to Alexanderplatz).
[3] In 1973 he became chief architect and personal advisor to the Director of Constriction Management for Special Construction Projects in East Berlin, Erhard Gißke.