He moved next to a London construction company, J. L. Kier & Co. in London, as director and chief designer from 1934-38, and during the 1930s he also worked with Ernő Goldfinger, Wells Coates, Maxwell Fry, Yorke, Rosenberg & Mardall and Marcel Breuer [REF].
In 1946, after dissolving Arup & Arup Ltd, he created a team of Civil and Structural Engineering consultants.