In January 1929, the former Pathe Frères Pathephone Ltd. factory in Stonebridge was purchased from Columbia Graphophone by British Homophone.
Consequently, the firm's head office was moved from central London to a site on Barry Road in 1931.
In 1971, President Records Executive Edward Kassner, a refugee from Nazi Austria, purchased a 50% stake in British Homophone.
However, by the late 1970s, the company had suffered bankruptcy, leading to the plant falling into a dilapidated state.
Peter Newbrook, in a 1996 interview, recalled that the plant's condition was heartbreaking, noting the admittedly great potential it could have had.
Despite Grant's ownership and endeavours, the facility failed to maintain its quality, and in 1985 the company closed.