Evaluating the influence of green building certifications on construction practices in Nigeria: a systematic review / Hyginus Unegbu ... [et al.]

This research explores the impact of green building certifications—specifically LEED, EDGE, and BREEAM—on construction practices in Nigeria. Through a detailed review of literature published between 2015 and 2023, the study examines the rate of adoption of these certifications, the resulting changes in construction practices, and the associated economic and environmental outcomes. The findings show that while the uptake of green building certifications is gradually increasing, it remains significantly lower than global standards. Certified buildings in Nigeria have demonstrated marked improvements in energy efficiency, water conservation, and waste management, contributing to both environmental sustainability and reduced operational costs. However, several barriers continue to hinder broader adoption, including the high initial investment required for green construction, a lack of adequately trained professionals, and insufficient government policies and incentives to support sustainable building practices. The study highlights the need for enhanced regulatory frameworks that mandate minimum sustainability standards, along with financial incentives such as subsidies and tax breaks to offset the initial costs. Additionally, raising public awareness through education and outreach initiatives is vital for increasing demand for certified buildings. The research further underscores the importance of fostering local industries for sustainable building materials and the critical role of professional training programs in closing the skills gap. Future research should explore the long-term economic benefits of green buildings, investigate the specific barriers impeding their adoption, and conduct comparative studies with other developing nations to provide insights into overcoming these challenges. This study offers key recommendations for policymakers, developers, and industry professionals seeking to promote green building practices in Nigeria, contributing to the global sustainability agenda.