This essay was completed as my undergraduate dissertation. It recieved the David Roberts Prize for the highest mark. The 1920’s villas of Le Corbusier are among the most recognisable pieces of his architecture, indeed of 20th century architecture as a whole. The three-quarters of a century of critical attention they have received tends however to confuse rather than clarify the question of how the architecture of these remarkable and significant buildings came to be. This essay will conduct a detailed historical investigation of two of these: the Villa Savoie and the Villa Stein-de-Monzie in order to develop an accurate account that measures the value of the various interpretations that have been offered based on their grounding in historical fact. In developing such an account a clearer insight into Le Corbusier’s creative process will be gained – though the premise it might ever be definitively known is questioned.