Land serves as a fundamental input for social and economic sectors, significantly influencing the achievement of the Sustainable Development Goals (SDGs). However, idle land can impede progress toward these goals if not utilized effectively. The prevalence of idle land has expanded in rural and rapidly growing urban areas across countries at different stages of development. Although several idle land management approaches have been implemented, they often result in short-term fixes rather than long-term solutions, and their efficacy remains inconsistent. Therefore, this article proposes a conceptual framework rooted in the principles of the Land Management Paradigm. This framework is developed based on a broad literature review to provide insights into the determinants for effective idle land management. The framework development draws upon the Land Management Paradigm, which highlights the interrelationship among a country’s land policy framework, land administration functions, land information infrastructures, and institutional arrangements. By utilizing this paradigm, the determinants for effective idle land management can be investigated comprehensively. The proposed conceptual framework highlights the importance of an integrated approach to idle land management. It emphasizes the need for a robust land policy framework that facilitates effective land utilization and discourages land idling. Furthermore, efficient land administration functions are vital in regulating and managing idle land. Accurate and accessible land information infrastructures are essential for informed decision-making and promoting optimal land use. Lastly, appropriate institutional arrangements must be established to ensure coordination and collaboration among relevant stakeholders involved in idle land management. In conclusion, idle land poses significant challenges to sustainable development, and existing solutions have often focused on short-term fixes. This article proposes a conceptual framework that integrates the principles of the Land Management Paradigm to enhance the effectiveness of idle land management initiatives towards implementing long-term solutions that promote optimal land utilization, contributing to achieving the SDGs.