Urban street environments function as shared commons where public and private realms coexist, encompassing elements such as street trees, school zones, and outdoor business spaces. These overlapping domains often generate multifaceted conflicts among interests related to pedestrian rights, safety, and visual amenity. Adopting the lens of micro-spatial justice, this study reconstructs the notion of publicness and everyday service accessibility within street environments, while proposing principles for ensuring minimum pedestrian clearances and integrated management. It further emphasizes democratic coordination through resident participation and the establishment of equitable use frameworks to enhance the collective public character of urban streets. By clarifying the distribution of rights, responsibilities, costs, and benefits in shared urban spaces, the study suggests policy-oriented strategies for spatial redesign. Ultimately, this research critically examines the relationship between micro-spatial justice and quality of life, contributing to the theoretical advancement of urban street policy and the development of sustainable, integrative management systems.