This paper investigates the factors that can be utilized in the redesign of public buildings to achieve vibrant, sustainable, and social public spaces. The research identifies and examines ten aspects, which are categorized into social and sustainable aspects, following regulations, standards, and recommendations formulated by organizations such as LEED and BREEAM. The social aspects include Human Health, Bio-Diversity, Public Spaces, Accessibility, and Visibility, while the sustainable aspects include Energy, Water, Nature, Materials, and Climate. The paper examines four case studies to demonstrate how these aspects can be used to create vibrant areas within public buildings. The case studies reveal the importance of factors such as ease and diversity of accessibility, biological diversity, and climate control in creating dynamic public spaces. The research aims to provide a guide for designing green and vibrant spaces within public buildings and suggests that future research could focus on developing new strategies for integrating sustainable and social aspects into public buildings more effectively.