Discrete event simulation (DES) has been used in academia to solve complex construction management problems for decades. However, it has not gained widespread adoption within the industry. A considerable effort to increase the acceptance of DES in construction has been carried out. However, it has been heavily focused on implementing DES models, neglecting both a detailed conceptualization of the real system and an understanding of stakeholders' requirements. Conceptual modeling (CM) is a fundamental step in DES which helps build stakeholders' trust in the resulting model. We argue, then, that it is vital to develop a CM framework for the construction domain to improve the acceptance of DES in the industry. We propose a domain-specific CM framework for construction application. This framework will be formulated to suit the complex environment of construction projects.