In the literature, there is a great variation in the cost-benefits due to the differing methodologies used in the estimation. This study aims at presenting a literature review of cost-benefit prediction methods combined with a SWOT analysis, particularly emphasising data collection and analytical approach. Findings show that the methods used in green building cost-benefit studies can be grouped into different categories in terms of data collection and analytical approach. Each method has its advantages and disadvantages with divergent capabilities. This literature review revealed that much of the current cost-benefit research lacks validity and reliability, and has different degrees of bias.