The architectural work of the Chilean architectural office Bresciani, Valdés, Castillo, Huidobro focused mainly on single-family houses, particularly in the early years of the firm. In doing so, it allowed the company to develop a unique modern form. Using descriptive methods, this study explores one of the most relevant aspects of the company's approach to design: the way in which the architects build that form, as represented by a house built during the first decade of work of work. This construction, called the Ravera House, is all but a disappeared fragment of local modern heritage. The paper argues that the construction of the form of this house is mediated by the intentional use of local constructive means, both modern and traditional, towards the achievement of modern visuality. [ABSTRACT FROM AUTHOR]