The use of public-private partnership (PPP) strategies in the delivery of public works projects has grown in popularity as an alternative delivery model, although its implementation has met with inconsistent success. Numerous studies have linked the effectiveness of public-private partnerships (PPPs) to the unique characteristics of various administrative environments. This comparative research used a case study technique to analyze the similarities and contrasts between the essential elements that determine the success of public-private partnership (PPP) housing projects in Malaysia and Nigeria. However, whereas ‘equitable risk allocation', ‘stable political system', and ‘reputable developer' are the most key success variables in Nigeria, ‘action against errant developer', ‘consistent monitoring, and homebuyer demands' are still the most crucial success aspects in Malaysia, according to the research. The results contribute to a better understanding of the environmental factors that affect the relative relevance of CSFs in public-private partnerships in underdeveloped countries.