Construction 4.0, derived from Industry 4.0, was introduced to the construction industry as a means of addressing current issues and enhancing industry productivity. Adoption of this concept has placed a significant demand on Construction 4.0 skills, as the industry is undergoing a transformation that calls for new strategies and specialized skill sets. While Construction 4.0 promises significant productivity gains, its widespread adoption often overlooks the crucial role of specialized skills, leading to a mismatch in expected outcomes. The often-underexplored theoretical dimensions of Construction 4.0 skills has the potential to bridge the gap between these skills and formulation of productivity goals and achieving them, highlighting the profound importance of understanding and integrating these skills in the context of Construction 4.0. While there has been a recent interest in Construction 4.0 skills across various national contexts, the theoretical dimensions of skills within the realm of Construction 4.0 remains unexplored. Therefore, this study examines the definitions, interpretations, and theories of skills within the context of Construction 4.0. Through a conceptual review of existing academic literature and policy documents, this research offers profound understanding of defintions and how the theories of Construction 4.0 intersect with skills development and thus impact the formulation of productivity goals. The definitions of Industry 4.0/Construction 4.0 formulated in various national frameworks are defined in accordance with their geographical, social, and cultural contexts and that have distinct production aims and scopes. The identified theoretical underpinnings of Construction 4.0 include digital building ecosystem, lean construction, circular economy, smart cities, and skills-related theories such as social learning theory, human capital theory, cognitive load theory, situated learning theory, and lifelong learning theory. The examination brings forth novel insights that promise to shape the future of Construction 4.0 skills development. By bridging the gap between theoretical constructs and productivity goals (labour efficiency, process efficiency, time efficiency, waste reduction, energy and water efficiency) within the context of Construction 4.0, this study offers a fresh perspective that integrates technology, sustainability, and collaboration to propel productivity goals. The research also emphasizes the varying prioritization of Construction 4.0 skill sets in different national contexts, and underscores the need for sector-specific frameworks for Construction 4.0 skills. Moreover, potential avenues for future research in the field of Construction 4.0 skills include perspectives of workers, real-world impacts on the industry, policy advancements, skills frameworks, ethical evaluations, and scenario planning. Display omitted •A comprehensive review of prior academic and policy documents of Construction 4.0 skills.•Definitions vary of Industry 4.0 and Construction 4.0 by geographical, and cultural contexts.•Relevance of several skills-related theories, i.e., social learning and social capital theories.•Technology, skill, and collaboration are essential for construction industry productivity.•Construction 4.0 skills advance productivity with policy certainty and scenario planning.