Kurt Lewin’s Three-Stage Model of Change — Unfreeze, Change, Refreeze — is one of the most enduring frameworks in change management. Developed in the early 1950s, it remains a cornerstone of how organisations think about, plan and implement change. This article explains the model in full, the Force Field Analysis that underpins it, real-world applications, criticisms and how it compares to Kotter’s 8-Step Model.
Who Was Kurt Lewin?
Kurt Lewin was a German-American social scientist and physicist who is widely regarded as one of the founding fathers of social psychology and organisational psychology. Working in the early-to-mid 20th century, Lewin developed a body of work focused on group dynamics, action research and the mechanisms of social and organisational change.
His Three-Stage Theory of Change — developed during the early 1950s — emerged from his broader interest in understanding how and why people resist change, and what conditions make change more or less likely to succeed. His work remains foundational in the field of change management, organisational behaviour and leadership.
The Three-Stage Model of Change: Overview
Kurt Lewin’s Three Stages model, or the Planned Approach to Organisational Change, is one of the cornerstone models in change management — and remains relevant in the present scenario. It is known as the Three-Stage Theory, which Lewin referred to as Unfreeze, Change (Transition) and Freeze (Refreeze).
According to Lewin, change for any individual or organisation is a complicated journey which may not be very simple — it mostly involves several stages of transitions or misunderstandings before attaining a state of equilibrium or stability.
For explaining the process of organisational change, he used the analogy of how an ice block changes its shape to transform into a cone of ice through the process of unfreezing — reshaping — and refreezing into its new form.
The ice analogy: Think of the organisation’s current way of working as a block of ice. To change its shape, you must first melt it (Unfreeze), pour it into a new mould (Change), then let it solidify in its new form (Refreeze). Skip any stage and the ice either stays the same shape or becomes water with no shape at all.
| # | Stage | Analogy | What Happens | Nissan Example |
|---|---|---|---|---|
| 1 | Unfreeze | Melt the ice | Create urgency, challenge the status quo, build awareness of why change is needed | Carlos Ghosn at Nissan communicating the severity of the crisis and forming cross-functional teams to recommend change |
| 2 | Change | Reshape the ice | Implement the change — new behaviours, systems, processes. Provide support and clear communication throughout | Nissan restructuring operations, closing plants, cutting costs — while Ghosn communicated progress and involved employees |
| 3 | Refreeze | Refreeze the new shape | Embed the change — reinforce new behaviours through rewards, policies and cultural norms until the new way becomes ’how we do things here’ | Ghosn introducing performance-based pay and open feedback systems to lock in the new culture at Nissan |
The Three Stages Explained in Depth
Stage 1: Unfreeze
This is the first stage of transition and one of the most critical stages in the entire process of change management. It involves improving the readiness as well as the willingness of people to change by fostering a realisation of the need to move from the existing comfort zone to a transformed situation.
It involves making people aware of the need for change and improving their motivation for accepting the new ways of working for better results. During this stage, effective communication plays a vital role in getting the desired support and involvement of people in the change process.
Key activities in the Unfreeze stage include:
- Creating urgency — helping people understand why the current state is not sustainable and why change is necessary now
- Challenging assumptions — questioning existing beliefs, practices and mental models that have become embedded in the culture
- Building psychological safety — creating an environment where people feel safe to acknowledge problems and engage with the prospect of change
- Communicating the case for change — clearly and repeatedly explaining what needs to change, why, and what the consequences of not changing would be
- Involving key stakeholders — engaging influential people early so they become advocates rather than resistors
Real-world example: When Satya Nadella took over Microsoft in 2014, the Unfreeze stage involved openly acknowledging that Microsoft’s culture of internal competition and ’know-it-all’ attitude was holding the company back. His honest diagnosis — that the company needed to become a ’learn-it-all’ organisation — created the urgency and emotional readiness for the cultural transformation that followed.
Stage 2: Change (Transition)
This stage can also be regarded as the stage of Transition or the stage of actual implementation of change. It involves the acceptance of the new ways of doing things. This is the stage in which the people are unfrozen, and the actual change is implemented.
During this stage, careful planning, effective communication and encouraging the involvement of individuals for endorsing the change is necessary. This stage of transition is not straightforward — people are often fearful of the consequences of adopting a change process, and uncertainty is high.
Key activities in the Change stage include:
- Implementing new processes, systems and structures — the operational mechanics of the change
- Training and developing people — equipping them with the new skills and knowledge required by the new ways of working
- Providing ongoing communication — keeping people informed of progress, addressing concerns, and celebrating early wins
- Managing resistance — identifying and addressing pockets of resistance constructively, not coercively
- Supporting people through uncertainty — acknowledging that transition is uncomfortable and providing the structures, coaching and support that help people navigate it
Why this stage is hardest: People are caught between the old way (which no longer exists) and the new way (which is not yet comfortable). Productivity often temporarily dips, anxiety increases, and resistance peaks. Leaders who understand this expect it — and support their people through it rather than forcing the pace.
Stage 3: Refreeze
During this stage, people move from the stage of transition (change) to a much more stable state — which can be regarded as a new state of equilibrium. The Refreezing stage is the ultimate stage in which people accept or internalise the new ways of working or change, accept it as a part of their life and establish new relationships.
For strengthening and reinforcing the new behaviour or changes in the way of working, employees should be rewarded, recognised and provided with positive reinforcements. Supporting policies or structures can help in reinforcing the transformed ways of working.
Key activities in the Refreeze stage include:
- Embedding change in systems and processes — updating policies, procedures, job descriptions and performance management frameworks to reflect the new way of working
- Rewarding and recognising new behaviours — making it clear through formal and informal recognition that the new way is the expected and rewarded way
- Updating hiring and onboarding — ensuring new employees are selected for and oriented to the new culture from day one
- Leadership modelling — leaders visibly and consistently demonstrating the new behaviours in their own conduct
- Monitoring and sustaining — tracking adherence to the new way and intervening early if regression occurs
Common mistake: Many organisations declare victory too early — they implement the change (Stage 2) but never properly refreeze (Stage 3). Without deliberate embedding, people gradually drift back to familiar patterns. This is why so many change initiatives show short-term gains that fade within 12-18 months.
The Nissan Case Study: Lewin’s Model in Action
The Nissan Motor Company example remains one of the most cited real-world applications of Lewin’s model. When Carlos Ghosn took charge of Nissan, the company was on the brink of bankruptcy — burdened by high debts and a rapidly declining market share.
Unfreeze: Creating the Burning Platform
Ghosn faced the challenge of implementing radical change while keeping resistance under control — which was inevitable under such circumstances. He formed cross-functional teams to recommend a robust plan of change across different functional areas, involving employees in diagnosing the problem rather than imposing solutions from above.
By communicating the severity of the crisis honestly and transparently, he created the urgency that made the Unfreeze stage possible — people understood that the status quo was not an option.
Change: Implementing the Turnaround
Ghosn developed a change management strategy that involved employees throughout the process. Through effective communication and reinforcement of desired behaviours, he drove the restructuring of Nissan’s operations — closing underperforming plants, reducing headcount, cutting costs and fundamentally redesigning how the company operated.
Refreeze: Locking in the New Culture
For refreezing the behavioural change of employees, Ghosn introduced performance-based pay — replacing a seniority-based system that had disincentivised high performance. He implemented an open system of feedback for guiding and facilitating employees in accepting the new behaviour patterns at work. These structural changes made the new way of working the expected and rewarded norm.
The result was one of the most celebrated corporate turnarounds in history — Nissan returned to profitability within two years, demonstrating the power of structured, people-centred change management.
Three Ways to Implement Lewin’s Model
According to Branch (2002), Lewin’s change management model can be implemented in three ways:
- Changing the behaviour, attitudes and skills of the individuals working in the organisation — the people dimension of change
- Changing the existing organisational structures, systems and processes — the structural dimension of change
- Changing the organisational climate, culture and interpersonal style — the cultural dimension of change
Lewin’s model stressed on the interdependence of various units as well as sub-units in an organisation — a change in one area inevitably affects others. This systems-thinking perspective was ahead of its time and remains highly relevant.
Kurt Lewin’s Force Field Analysis
Kurt Lewin’s Force Field Analysis attempts to explain how the process of change works by diagnosing the driving forces and the restraining forces that determine whether organisational change succeeds or fails.
One side of the model represents the driving forces — those that push the organisation towards the new state. The other side represents the restraining forces — the factors which provide resistance to change, including the behaviours of employees that block the process of change.
According to Lewin, stability can be achieved when both the driving and restraining forces reach a stage of equilibrium of approximately equal strength from opposite directions.
Driving Forces
Driving forces create a sense of urgency for change. They include:
- External driving forces — Globalisation, technological development and the IT revolution, changes in the workforce, shifting consumer preferences, competitive pressure, regulatory changes
- Internal driving forces — Leadership vision, strategic ambition, performance gaps, employee suggestions, cultural evolution
Any change process should start with informing employees about the influence of external driving forces — competitors, changing consumer trends, regulatory requirements — so they understand why change is necessary.
Restraining Forces
Restraining forces are the sources of resistance that must be weakened or removed for change to succeed. They include:
- Fear of the unknown — anxiety about what the change will mean for individuals personally
- Loss of status, security or control
- Lack of trust in leadership
- Comfortable habits and established routines
- Group norms that reinforce existing ways of working
The restraining forces or resistance from employees can be controlled by:
- Effective communication and involvement of employees in the process from the earliest stages
- Training initiatives for strengthening the new set of knowledge and skills required
- Stress management techniques to help employees cope with the stressors of transition
- Negotiation for ensuring compliance from those with the most to lose
- Coercive measures — only if all other measures fail and the urgency of change is critical
Force Field principle: According to Force Field Analysis, to move from the current state to the desired state, either strengthen the driving forces, weaken the restraining forces, or ideally both. Simply applying more pressure (strengthening driving forces without addressing restraining forces) often increases resistance and creates conflict.
Strengths of Lewin’s Model
- Simple and intuitive — the three-stage model is easy to understand, communicate and remember — making it accessible to leaders at all levels
- Universally applicable — works across individual, team and organisational levels of change
- Psychologically grounded — rooted in social psychology and an understanding of how people actually respond to change
- Force Field Analysis is highly practical — the driving/restraining forces framework is immediately useful for diagnosing change readiness and planning intervention
- Enduring relevance — despite being developed in the 1950s, the core insight — that change requires preparation, implementation and embedding — has not been superseded
Criticisms of Lewin’s Model
Several critics have raised valid concerns about Lewin’s planned approach to change management:
- Assumes incremental change — Lewin’s model fails to adequately account for radical or transformational change; it is most useful when incremental, planned change is being implemented
- Ignores power and politics — the model does not address the role of power dynamics, competing interests and political behaviour in shaping change outcomes
- Underplays emotions — it ignores the importance of feelings and experiences of employees which play a crucial role in the change process
- Top-down orientation — the model supports a top-down approach and ignores the importance of bottom-up change initiatives
- Static environment assumption — the model assumes organisations move from one state of stability to another in a planned way, but present-day organisations function in turbulent, uncertain environments where stability is rare
Lewin’s Model vs Kotter’s 8-Step Model
Lewin’s 3-Stage Model and Kotter’s 8-Step Model are the two most widely taught change management frameworks. They are complementary rather than competing — each serves a different purpose:
| Dimension | Lewin’s 3-Stage Model | Kotter’s 8-Step Model |
|---|---|---|
| Structure | 3 broad stages — Unfreeze, Change, Refreeze | 8 specific steps from creating urgency to anchoring in culture |
| Complexity | Simple and conceptual — easy to understand and communicate | Detailed and prescriptive — provides a step-by-step roadmap |
| Best for | Understanding the nature and phases of change at a conceptual level | Planning and implementing a specific change initiative with a team |
| Pace | Can accommodate fast or slow change — no prescribed timeline | Sequential — each step must be completed before moving to the next |
| Focus | Organisational equilibrium and the psychology of change resistance | Leadership actions and communication strategies to drive change |
| Limitations | Too simple for complex change; ignores power and politics | Too prescriptive; assumes top-down change; hard to train in |
| Origin | Kurt Lewin, 1950s — social psychology and field theory | John Kotter, 1996 — Harvard Business School research on 100+ organisations |
| Practical use | Diagnosis and framing — understanding why change is hard | Execution — planning and driving a specific change programme |
In practice, many organisations use both: Lewin’s model to understand and frame the change at a conceptual level, and Kotter’s model to plan and execute the specific steps required.
When to Use Lewin’s Change Model
Lewin’s model is most appropriate in the following situations:
- Teaching or communicating about change — its simplicity makes it the ideal starting point for change education
- Diagnosing change readiness — the Unfreeze stage helps leaders assess whether the organisation is ready to change before committing to an initiative
- Incremental, planned change — situations where there is time to plan, prepare and gradually shift the organisation
- Combined with Force Field Analysis — for diagnosing resistance and identifying where to focus energy
- As a complement to Kotter — providing the conceptual framing while Kotter provides the operational roadmap
Conclusion
Kurt Lewin’s Three-Stage Change Management Model is one of the most significant contributions to organisational psychology and change management ever made. Despite being developed over 70 years ago, its central insight remains entirely relevant: successful change is not just about implementing new things — it is about preparing people to let go of the old, supporting them through the transition, and anchoring the new way firmly enough that it becomes the new normal.
Lewin’s model stressed on the interdependence of various units as well as sub-units in an organisation. His Force Field Analysis adds a powerful diagnostic tool that helps leaders understand not just what needs to change, but why change is hard — and what specifically needs to shift to make it happen.
Change is not an event — it is a process. Lewin’s model reminds us that the preparation before and the embedding after are just as important as the change itself.
