The potentials of green building technology (GBT) and sustainable constructions are the major reasons for its integration, advancement and adoption in developed countries. Yet, developing countries have not found the motivation to integrate GBTs, and transit to sustainable constructions, which suggests perceived inhibiting forces. This study investigated the perception of tertiary institution lecturers on the motivators and inhibitors of GBT integration and advancement in Nigeria. An empirical questionnaire survey of 163 lecturers from construction and environmental science related courses in 24 tertiary institutions provided data for the analysis. The analysis results ranked âefficiency in construction processes and management practices,â that is capable of reducing waste, as the major motivator for GBT integration; âlack of government support for GBTsâ was the main inhibitor perceived. The Kendallâs coefficient of concordance confirmed concession in rankings, and Kruskal Wallis H test showed that although 7 motivator items, and 8 inhibitor items, were significant, there was no significant difference in the overall lecturersâ perception of the motivators and inhibitors of GBTs. As guides to knowledge, research and development, lecturers in environmental related courses should spur interest in GBTs, so as to raise awareness, enhance integration and advancement of GBT. Moving forward requires government to go beyond formulating sustainable construction policy to create GBT funding schemes, and initiate a proven GBT project as a roadmap to facilitate the integration and advancement, and as well, protect the interest of potential investors.