The Imperative of Sustainable Practices in the Construction Management by Private Developers in Nigeria: A Case of Ibadan

Unliveable environmental changes and natural calamities, whose effects have increased exponentially over time as a result of human activity, have recently been happening in various parts of the world. One of these human endeavours is building. In this regard, emerging and undeveloped nations must now take an active role in comprehending and implementing the methods and practises being studied and employed by developed nations with relation to sustainable construction practices. This study was carried out because it was necessary to investigate the necessity of sustainable practises in the construction management techniques used by private developers in Ibadan, a rapidly developing state that can be used to represent a significant geopolitical region in Nigeria. To clearly grasp its impact, the moderating impact of financial constraints on sustainable construction practises was examined. To ascertain the influence of the mediators (reducing rework, alternative construction methods, compliance improvement, and waste reduction) and the independent variables (sustainability awareness and material selection), a survey using the homogeneous purposive sampling of 252 professionals and a panel questionnaire study of 7 construction professions that currently practise in Ibadan was conducted. Using hierarchical multiple regression analysis, correlation analysis, structural equation modelling, ISM analysis, and MIMAC analysis, a conceptual model was evaluated. This was used to better understand the relationship between the moderating, the mediating, the independent constructs and sustainable construction practises. The findings indicate that financial constraints through material selection and sustainability awareness have a moderating effect on sustainable construction practises. In addition, the study found that reducing rework has no statistical influence on sustainable construction practises. In addition, it was discovered that the mediating factors (alternative construction methods, waste reduction, and compliance improvement) have a substantial effect on sustainable construction. The study concluded with recommendations for the construction related professional bodies and construction regulatory bodies in Nigeria on the importance of the implementation of means to motivate private developers practice the constructs that define sustainable construction practices.