Evaluating the role of offsite construction in achieving net zero building in Nigeria’s construction industry

This study explores the role of off-site construction in achieving net zero buildings in the Nigerian construction industry, which is a significant contributor to carbon emissions. Therefore, the research aims to evaluate Off-Site Construction's contribution to Nigeria's sustainability goals by evaluating the challenges of Off-site construction in achieving net zero. In addressing the aim of the study, a quantitative research approach was adopted; the questionnaire was distributed to Architectural, Engineering and Construction (AEC) professionals across Nigeria's six geo-political zones, gathering data on the challenges and contribution of OSC in achieving net zero building in Nigeria construction industry. The key challenges hindering OSC from achieving net-zero results include quality control issues, technological integration, resistance to change, and high upfront costs. The results of the obstacles were analysed using Spearman’s correlation analysis to assess the direction and strength of the connection between two ranking variables. This method is beneficial when the data does not necessarily follow a normal distribution or when dealing with ordinal variables. The highlight of the study is the positive contribution of OSC, which includes enhanced energy efficiency, reduced carbon footprint, and alignment with Nigeria's green goals. Despite these challenges, OSC is a promising approach to achieving net zero building and promoting sustainability in Nigeria's construction industry. This study addresses a critical gap in understanding how OSC can contribute to achieving net zero in Nigeria's construction industry. The findings will guide policymakers, industry stakeholders, and investors in adopting sustainable construction practices, aligning Nigeria’s growing construction sector with environmental sustainability targets