Controlling the cost of the project construction is considered as one of the major and most important concerns for any contractor. Due to such an importance, this study is directed towards investigating the current construction cost control practiced among the building construction contractors in Sudan. In this study, the research is approaching as an iterative philosophy process where the research has been initiated in light of a prior knowledge as well as experiences form a pre-understanding of the research area. This pre-understanding is the basis for searching into the literature on the subject area, which it has in turn created a new understanding of the phenomena of cost control system. This new understanding has been used to guide an empirical research, and again generate a new understanding of the phenomena. Finally, a set of recommendations and topics have been presented for further studies (focusing in one type of construction building, one type of contract, one stage of project life cycle …etc) and suggested to improve the construction cost control practices in Sudan.