In the current complexity of the design process, it is important to clarify the information flow for the creation of smart architectures. This clarity ensures coherence at each design scale, up to the definition of construction elements that make them effectively realizable and manageable throughout their entire life cycle. This paper presents a definition of sustainable metamodules using homogeneous sets of smartness indicators to support the design workflow. It specifically focuses on façades with a transparent base skin that can be digitalized through a BIM-based approach, promoting interoperability and multidisciplinary control. In analyzing present societal demands and the features of smart architectures, a range of smartness indicators will be established as parameters that contemporary architecture should consider to be classified as smart. The information cores formed by the combination of the predetermined parameters and feasible design solutions will be stated at every level of design detail. Following BIM regulations and leveraging the customization capabilities of open-format files (IFC), the earlier identified metamodules will be stated at various Levels of Detail (LOD), crafting suitable property sets within a BIM authoring software. This process will generate a structured matrix capable of supporting designers’ decisions in the realization of smart architectures.