Exploring the factors affecting quality of project delivery in the Nigerian construction industry

Purpose This study aims to explore the factors influencing the quality of project delivery in the Nigerian construction industry, addressing a critical gap in the existing literature and providing insights for improving construction practices in Nigeria. Design/methodology/approach A mixed-methods approach was employed, combining quantitative analysis of survey data with qualitative insights from semi-structured interviews. The survey gathered data on various factors affecting project quality, while interviews provided contextual understanding and nuanced perspectives from industry professionals. Findings This study identifies seven key factors influencing project delivery quality: contractor performance ( β = 0.235, p < 0.001), design and materials management ( β = 0.180, p < 0.001), documentation and procurement ( β = 0.175, p < 0.001), workforce management and skills ( β = 0.142, p < 0.001), project management practices ( β = 0.153, p < 0.001), budget and financial management ( β = 0.139, p < 0.001) and government regulations ( β = 0.080, p < 0.001). Contractor performance and design/materials management have the most significant impact, underscoring the need for strong contractor supervision, material standards and efficient design processes. Additionally, effective documentation and procurement are crucial for success, with procurement inefficiencies leading to delays and reduced quality. Workforce competencies also play a major role, as inadequate training and a lack of skilled labour result in construction defects and compromised project outcomes. Research limitations/implications Limitations of the study include its focus primarily on industry professionals' perspectives and its limited scope to the Nigerian context. Future research could explore additional stakeholder perspectives and extend the study to other geographical contexts. Practical implications The findings offer valuable insights for construction professionals, policymakers, and other stakeholders, informing the development of a tailored approach to enhance quality project delivery in Nigeria. By addressing critical factors identified in the study, stakeholders can mitigate risks, improve project outcomes and contribute to the sustainable development of the construction industry. Originality/value This study contributes to the existing literature by comprehensively analysing the factors influencing quality project delivery in the Nigerian construction industry. Integrating quantitative and qualitative data provides a nuanced understanding of the challenges and opportunities inherent in ensuring project quality, offering practical implications for industry practitioners and policymakers.