Lewin’s Change Management Model is a foundational framework that explains how organisations can successfully implement change. Developed by social psychologist Kurt Lewin in the 1940s, the model describes change as a three-stage process: Unfreeze, Change, and Refreeze. It helps leaders guide individuals and teams through transformation in a structured and human-centred way.
Kurt Lewin, often regarded as the father of social psychology, introduced this model to simplify complex organisational dynamics. He viewed change as a process of shifting from an old state of equilibrium to a new one. His work was among the first to connect psychology with organisational development, laying the groundwork for modern change management theories such as Kotter’s 8-Step Model and ADKAR.
Lewin’s model consists of three key stages:
Lewin’s model is used across sectors such as healthcare, education, and manufacturing. For example, a hospital may use the model to implement a new electronic health record system. Leaders “unfreeze” old paper-based habits, guide staff through the transition, and “refreeze” new digital workflows once the system becomes the norm.
The model remains relevant because of its simplicity and focus on human behaviour. It emphasises that sustainable change requires both emotional readiness and structural support. By addressing resistance early and reinforcing new norms, Lewin’s approach helps organisations maintain long-term improvements.