Langdon Badger’s role in the development of South Australian design culture rests on his interior design work, design retailing and occasional forays into Industrial design. After drawing courses at the SA School of Art, he trained in design (Design Diploma (Hons.) 1952 at Sydney Technical College with Phyllis Shillito as Head of Department and was a classmate of Tony Parker (Later Parker Furniture).

On graduation, he returned to Adelaide to establish a design firm retailing and providing colour consultancies and design services as “Langdon Badger Furnishings” from 96 Pulteney Street, Adelaide (1954), later at 113 Grenfell Street, returning to 186 Pulteney Street. On his return, he was one of two known SA interior design professionals. In the middle to late 1950s, Badger was introducing contemporary timber furniture from the eastern states, including Danish-sourced furniture as well as Fler, Parker, Moran, Featherston, Parker and Snelling Line. He also designed upholstered furniture for manufacture and retail in South Australia. In addition to his retail and design business, he was held on a retainer by Myer Emporium, Adelaide, Flavels, and Pope Products (later Simpson) designing window fittings and other hardware. He retired in 1998.