ISO 45001:2027: What the Proposed Changes Mean for UK Construction Industry

ISO 45001 (occupational health and safety management) is undergoing its first major revision since it was published in 2018.

The Draft International Standard (DIS) for ISO 45001:2027 was released in mid-2026, giving organisations early visibility of what is coming and an opportunity to participate in the public comment period.

If you have been reading industry updates or scrolling through LinkedIn recently, you might have gained the impression that ISO 45001:2027 requires you to completely overhaul your existing Occupational Health and Safety (OH&S) management system and start from scratch.

Let’s be clear, this is not the case.

The draft revision will be evolution, not a revolution. With the existing structure you are familiar with remaining intact. The standard's relevance and effectiveness will be enhanced to reflect the changing world of work and for organisations already certified to ISO 45001:2018, the transition should be manageable.

It is about strengthening how you protect your people while responding to modern workplace realities.

However, for construction firms that hold ISO 45001 accreditation, there are some important changes on the horizon that you need to be aware of, particularly regarding mental health and wellbeing, psychosocial risks, leadership accountability, and how you address emerging risks in an industry that is constantly evolving.

In this blog, I want to look at what is changing in ISO 45001:2027, what it means specifically for the UK construction industry, and how you can prepare your organisation for a smooth transition.

Why Is ISO 45001 Being Revised?

The way we work and the risks we face are changing. The revision reflects several key shifts in the modern workplace:

• Changing workplace expectations

Workers and stakeholders now expect more than just basic compliance; they expect genuine care for health, safety, and wellbeing.

• Emerging risks and new ways of working

  
  

From hybrid and remote work to technological evolution including artificial intelligence, the workplace landscape has transformed since 2018.

• Increasing workforce diversity

  
  

A more diverse workforce brings different needs, vulnerabilities, and perspectives that must be considered in health and safety management.

• Greater emphasis on leadership and organisational culture

  
  

Health and safety can no longer be treated as a standalone function; it must be embedded in organisational culture and led from the top.

The proposed changes are about moving beyond compliance and considering how you can align your occupational health and safety system with how your organisation operates in today’s modern workplace.

What Is Changing in ISO 45001:2027?

The DIS introduces a series of potential changes that strengthen your safety management management system and its impact and based on the draft. ISO 45001:2027 will strengthen leadership accountability, expand focus on mental health, and require a more proactive approach to emerging risks with the key changes falling into several main areas:

Stronger Leadership and Culture

You may see increased emphasis on leadership responsibility and accountability, alongside the need to embed a strong health and safety culture across your organisation. This is not about delegating safety to a manager, it is about visible, meaningful leadership that drives occupational health and safety outcomes.

An Increased Emphasis on Health

Potential changes include consideration of changes to health or capability of workers and making adjustments when returning to work after ill health. This reflects a shift from simply preventing harm to actively promoting health.

A Greater Focus on Mental Health and Wellbeing

The revision introduces potential changes that reflect the importance of mental health, wellbeing, and psychosocial risks in today's workplace. This is one of the most significant changes for the construction industry, where mental health has historically been overlooked.

Addressing Emerging Risks

You may need to take a broader view of risk, including those arising from a changing external environment and evolving ways of working. This includes climate-related risks, new forms of work such as remote and hybrid work, and technological changes including artificial intelligence.

Supporting Diversity and Inclusion

Potential changes highlight the need to consider the needs of workers, and others who could be impacted, to ensure appropriate and effective health and safety controls for all. This means considering factors such as gender, age, disability, and cultural background.

Improved Integration into Your Organisation

The revision strengthens how occupational health and safety is embedded into strategic decision making and governance, ensuring it is fully aligned with your wider business objectives.

Enhanced Change Management

You may see stronger expectations around managing change, helping you maintain control of health and safety risks as your organisation evolves.

Explicit Focus on Worker Wellbeing

The draft revision places an explicit focus on worker wellbeing, and not only on health and safety. This is about promoting work related wellbeing throughout the document, not just preventing harm.

Climate Change Integration

Climate change is now officially integrated as part of the standard's requirements. Organisations must assess and address climate related occupational health and safety  risks, including extreme weather, heat, and changing environmental conditions.

Continued Alignment with ISO Standards

ISO 45001 is expected to retain alignment with the harmonised structure, supporting integrated management systems and consistency across the standards.

What This Means for the UK Construction Industry

For construction firms that hold ISO 45001, the changes have several practical implications.

1. Mental Health and Psychosocial Risks Must Be Addressed

This is arguably the most significant change for the construction industry. Construction has long been associated with high rates of mental health issues, stress, and suicide. The revision now requires you to formally consider mental health, wellbeing, and psychosocial risks in your occupational health and safety management system.

For a typical construction firm, this means:

• Identifying psychosocial hazards such as workload pressure, long hours, job insecurity, and poor work-life balance.

• Implementing controls to mitigate these risks.

• Providing support for workers returning to work after ill health.

• Creating a culture where mental health is discussed openly and without stigma.

This it is about recognising that mental health is as important as physical safety on construction sites.

2. Top Leadership Accountability Cannot Be Delegated

The revision places greater emphasis on leadership responsibility and accountability.

Directors and senior leaders must now demonstrate that they are actively driving occupational health and safety outcomes, not simply delegating safety to a managers and advisors.

For construction firms, this means that health and safety performance should be a board level agenda item, not just a site level concern.

It means investing in training and development to embed safety thinking at every level of the organisation. It means setting the right tone from the top by demonstrating that protecting people is not just about passing audits, but about genuine care for the workforce.

3. Emerging Risks Must Be Proactively Managed

The revision requires a more proactive approach to emerging risks. You need to take a broader view of risk, including those arising from a changing external environment and evolving ways of working.

For construction, this has several dimensions:

• Climate-related risks

Extreme weather affecting site safety, heat stress, flooding, and supply chain disruption.

• New working models

Remote work, hybrid work, and changes to how projects are managed.

• Technological evolution

The introduction of AI, drones, and new construction methods.

• Supply chain responsibility

Ensuring that subcontractors and suppliers are managing their own occupational health and safety risks effectively.

4. Diversity and Inclusion Must Be Considered

The revision highlights the need to consider the needs of all workers, ensuring that health and safety controls are appropriate and effective for everyone. This means considering factors such as gender, age, disability, and cultural background when designing safety controls, training, and communication.

For construction firms, this has practical implications for how you design site inductions, personal protective equipment, welfare facilities, and communication strategies. A one size fits all approach is unlikely be sufficient.

5. Worker Wellbeing Becomes a Priority

The revision places an explicit focus on worker wellbeing, not just on preventing harm. This is about promoting work-related wellbeing throughout the organisation.

For construction, this means going beyond compliance with safety regulations and actively creating working conditions that support physical and mental health. This could include improved welfare facilities, better work-life balance, access to health screening, and support for workers returning after illness.

6. Change Management Must Be Formalised

The strengthened change management expectations mean that when your organisation undergoes change, whether that is a new project, a new site, new technology, or a change in subcontractor. You must formally plan and manage the health and safety implications of that change.

For construction firms, this is highly relevant revision but also most likely something that you already do anyway without formalising it.

The standard now expects you to have a repeatable and documented approach to evaluating health and safety implications before changes occur.

Transition Timeline – What You Need to Know

The revision is currently at the Draft International Standard (DIS) stage, which was released in mid 2026. At the DIS stage, these are only 'potential' changes, so it is not about rushing to action but rather an opportunity to start reviewing your existing system.

The final version of ISO 45001:2027 is expected to be published in 2027 and a transition period of two to three years is expected after publication. This would give organisations until approximately 2029 or 2030 to transition their occupational health and safety management systems.

This is something to be on your radar while you are already digesting the 2026 changes to ISO 9001 and 14001.

See my other blog posts for further information on the 2026 changes to ISO 9001 and 14001

Practical Steps to Prepare Your Construction Firm

If your organisation holds ISO 45001:2018 accreditation, here are some practical steps you can take now:

1. Assess Leadership Accountability

Can you demonstrate how leadership drives OH&S outcomes? Review whether your senior leaders are visibly engaged in health and safety, and whether they are accountable for performance.

2. Expand Your Risk Sphere

Are you considering psychosocial and emerging risks? Review your risk assessment processes to ensure they capture mental health risks, climate related risks, and new working models.

3. Review Workforce Inclusion

Does your system work for every worker? Consider whether your safety controls, training, and communication are appropriate for a diverse workforce.

4. Conduct a Gap Analysis

Compare your current OH&S management system against the proposed changes to identify areas that need updating. Pay particular attention to:

• How you address mental health and psychosocial risks.

• Your leadership accountability and culture.

• Your approach to emerging risks and climate change.

• Your change management procedures.

• How you promote worker wellbeing.

  
  

5. Engage Leadership Early

Ensure that top management understands the new expectations around leadership accountability and is prepared to demonstrate active engagement.

6. Review Your Supply Chain

Map your key subcontractors and suppliers and evaluate their occupational health and safety performance and consider what evidence you will need to demonstrate effective oversight of emerging risks in your supply chain.

7. Update Documentation and Procedures

Review and update your policies, procedures, and documented information to align with the new requirements.

8. Use Internal Audits to Test Readiness

Conduct internal audits against the proposed changes to identify gaps and test your readiness ahead of the formal transition audit.

9. Stay in Contact with Your Certification Body

Your certification body will provide guidance on transition timelines, auditor competence requirements, and the specific expectations for your sector.

Final Thoughts

ISO 45001:2027 is a targeted evolution that reflects the realities of modern work, mental health as a critical business risk, the importance of leadership and culture, the need to address emerging risks including climate change, and the growing expectation that organisations will promote worker wellbeing, not just prevent harm.

For UK construction companies that already have a functioning occupational health and safety management system, the transition is largely a matter of formalising factors you are likely already aware of.

The changes around mental health, psychosocial risks, leadership accountability, and emerging risks are particularly relevant for the construction sector, where the human cost of poor health and safety is well documented.

Companies that embrace these changes early will not only maintain their accreditation but will also strengthen their competitive position by demonstrating genuine care for their workforce, a factor that is increasingly important to clients, regulators, and the wider community when submitting tenders.

The two to three year transition window gives you time to prepare and a well planned transition is far less stressful than a lastminute compliance scramble.

If you require further assistance with any of the topics raised in this post, whether that is conducting a gap analysis, reviewing your approach to mental health and psychosocial risks, updating your OH&S documentation, or preparing for your transition audit, please get in touch: Yorkshire Health and Safety