Feasibility of Converting Vacant Large-scale Retail Store into Senior Housing: Focused on Building Form Proposals Based on Daylighting Design Principles

Purpose: As the number of large-scale retail stores increases and the demand for senior housing continues to rise, converting these vacant spaces into senior housing can be an effective solution. By resolving the natural lighting issue through building design, this study aims to enhance the potential for converting closed large-scale retail stores into senior housing. Method: The large-scale retail stores was examined to convert into senior housing Subsequently, to address the natural lighting issues encountered during the conversion process, the theoretical foundation was established based on Daylight Autonomy (DA) indicator and daylighting principles. Finally, the locational and planning characteristics of large retail stores were compared and analyzed. Based on the theoretical background, a form that ensures adequate natural lighting was proposed. Result: It was found that there is feasibility for such conversions. A multiple-courtyard layout was more rational than a single-courtyard layout, and the size of the courtyards can be efficiently adjusted. By maximizing the exposure to the exterior, it was possible to secure more interior space. Furthermore, it proposes building forms that can overcome the natural lighting conditions of large retail stores, thereby increasing the potential for successful conversions.