This article first defines idle industrial facilities, summarizing their characteristics as temporal, accessible, flexible, and malleable. It then elaborates on the concept of the cultural and creative industries, highlighting their features as cultural diversity, uniqueness, creativity, and concentration. Subsequently, the paper categorizes spaces redesigned for regeneration, classifying them as art exhibition spaces, commercial spaces, public spaces, and social and resting spaces. Based on this framework, the study explores the design features of cultural and creative industries in regenerating idle industrial spaces in city centers, identifying four key traits: symbolic, multipurpose, specialized, and participatory. The analysis includes case studies of transformation projects like the 798 Art Zone and Seongsu-dong, concluding with targeted recommendations such as enhancing original industrial historical elements, adding interactive designs to provide a deeper immersive experience, and improving the industrial environment with increased subsidies. The aim is to foster the transformation of more idle industrial spaces into vibrant redevelopment projects through the power of cultural and creative industries.