Most discussions about Building Information Modeling focus on 3D models, clash detection, or digital coordination. However, experienced BIM professionals know that successful projects are rarely built on software alone. They begin with a well-structured BIM Execution Plan (BEP). Before the first wall is modeled or the first coordination meeting takes place, every stakeholder needs a shared roadmap. BIM Execution Planning establishes that roadmap by defining responsibilities, workflows, modeling standards, data exchange procedures, and project goals. Without it, even the most skilled BIM teams can experience delays, inconsistent models, coordination issues, and costly rework. As construction projects become increasingly complex and globally distributed, a comprehensive BIM Execution Plan has evolved from a recommended document into an essential project requirement.