The development of the digital discourse in the field of architecture has been a principle concern at the beginning of the 21st century. Attempts at developing methodologies for the utilization of digital tools in the design process have been present for decades. In the past decade that interest has been augmented by a stance that aims to emphasize the use of generative tools that can facilitate an iterative systems approach to design. This article illustrates how a parametric modeling process has been applied in the design and dimensioning of brise soleil double facade systems.