In this research, which examines the factors affecting customer satisfaction in construction projects, the convenience sampling method was preferred, and data were collected from participants aged 18 and over by face-to-face survey method. Smart PLS statistical software was used to analyse the data with a structural equation model. According to the results of the analyses, cost-effectiveness and lead time stand out as factors affecting customer confidence. Customer confidence directly affects customer satisfaction. In addition, quality perception has a strong effect on customer satisfaction. According to the results of multiple group analysis, customer satisfaction varies according to different buyer segments. While quality perception, cost-effectiveness and lead time are at the forefront for those who buy a property for commercial use, customer confidence has a more decisive role for those who buy a property for personal use. In addition, groups with lower incomes prioritise cost-effectiveness and customer confidence, while groups with higher incomes attach more importance to lead time.