The construction industry in emerging economies is significantly influenced by the unorganized sector, characterized by informal employment, limited regulatory oversight, and varied project management practices. This study delves into the socioeconomic context and challenges faced by the unorganized construction sector, with a particular focus on operational dynamics, workforce issues, and the regulatory environment. The chapter examines the economic factors driving the unorganized sector, the adoption of technology, skill development initiatives, and the imperative for environmental sustainability. By exploring the interplay between these elements, the study aims to provide a comprehensive understanding of how the unorganized construction sector operates in emerging economies of India, China, Brazil, Indonesia, and Nigeria. Through a detailed analysis of the existing literature and case studies, the chapter identifies key challenges and proposes actionable strategies for enhancing project management practices, improving workforce conditions and fostering sustainable development in construction industry. The findings are expected to inform industry stakeholders, researchers, and policymakers about the critical aspects of managing unorganized construction projects and the potential pathways for integrating them into the formal economy, thereby contributing to more robust and equitable growth in the construction industry.