What is the primary effect of scope creep on project estimation?

Scope creep refers to the gradual expansion of project scope beyond the originally defined parameters without proper control or adjustments to time, costs, and resources. The primary effect of scope creep on project estimation is that it leads to increased costs and complications. As the scope expands, additional tasks, features, or requirements are introduced, which can necessitate more time, labor, and materials than initially planned.

This unanticipated increase in project scope often leads to budget overruns since resources are diverted to accommodate the new scope elements, and original estimates may no longer be valid. Additionally, increased complexity can arise from managing more tasks, coordinating more stakeholders, and ensuring that all new aspects fit well together within the project framework. Consequently, scope creep complicates the overall project management process, leading to potential delays and requiring more rigorous oversight and adjustment to keep the project on track.

The understanding of scope creep is essential for construction estimators, as it underscores the importance of tightly managing scope and communicating effectively with stakeholders about any changes that could impact project estimates.