Abstract: This study is design to investigate the risk factors and preventive measures in building construction projects in Abuja FCT, Nigeria. A descriptive survey research design was adopted for the study. Two research questions and one hypothesis guided the study. The study was carried out in the entire building construction project in Abuja, Nigeria. A total of 116 respondents comprising 58 contractors and 58 registered site engineers were used as population of the study. A structured questionnaire containing sixty six (66) items was developed by the researcher and used for the study. Cronbach Alpha, Mean and Standard Deviation were used as the statistical tools to analyze the data, while t- test statistic was employed to test the null hypothesis of the study at 0.05 level of significance.