Construction Projects widely experience the “Scope Creep” phenomena, which consumes both resources and contingencies allocated for those projects. Creep is always an unknown project risk and managing scope creep is a very complicated task. So, preventing the causes leading to scope creep seems an efficient strategy. To succeed in preventing scope creep in construction projects an understanding for conditions that lead to the creep is required, and an ability to choose the suitable action when the creep arises is needed. Hence, this research sought to identify, evaluate and rank the most important and frequent factors responsible for scope creep in construction projects. It considered the perspective of the owners, consultants and contractors in Egypt. Moreover, it aimed to identify and develop appropriate strategies for scope creep prevention. The study concluded that problems such as scope creep will arise in construction projects and should be taken into consideration in every project. The obtained information provides guidance for strategies to be developed to provide project leaders and other stakeholders with a practical professional approach for construction scope creep prevention.