Introduction On setting a ‘live/work’ building as a student design project, a gap in knowledge was found. There was, ostensibly, no established literature on the dual-use building type that combines dwelling and workplace, no books that mapped out and analysed its history or contemporary form. But lots of fragmented and hidden material was found, often disguised in publications about houses or workplaces, about individual buildings or architects’ oeuvres, or about particular geographical locations or periods of history.1 This chapter is mostly drawn from the much greater knowledge of the historians responsible for these sources. What is offered here is an idea or a theme.