Who Is Responsible for Legionella Testing in Hotels, Commercial & Rental Properties?

Legionella compliance is one of the most misunderstood areas of building safety in the UK. Many landlords and managing agents are unsure who is legally responsible for legionella testing, what testing involves, and how often it must be carried out.

This article explains responsibility for legionella testing in rental properties and how facilities management ensures ongoing compliance.

What Is Legionella and Why It Matters

Legionella bacteria can develop in water systems such as tanks, pipework, showers, and taps. If inhaled through contaminated water droplets, it can cause Legionnaires’ disease, a potentially fatal form of pneumonia.

Because of this risk, UK law requires duty holders to assess and control legionella risks in buildings.

Who Is Legally Responsible?

Responsibility typically lies with the duty holder, which may include:

• Landlords

• Building owners

• Managing agents

• Employers (for commercial premises)

In most rental properties, the landlord holds responsibility, even where management is delegated. Delegation does not remove legal accountability.

What Does Legionella Compliance Involve?

Legionella compliance usually includes:

• A legionella risk assessment

• Identification of risk areas within the water system

• Implementation of control measures

• Ongoing monitoring and record keeping

Risk assessments must be reviewed regularly and whenever changes are made to the water system or building use.

Common Compliance Failures

• Assuming low risk means no action is required

• Failure to review risk assessments

• Poor record keeping

• Lack of temperature monitoring

• No clear allocation of responsibility

These gaps can lead to enforcement action if an incident occurs.

How Facilities Management Supports Legionella Compliance

Facilities management provides:

• Commissioning and review of risk assessments

• Ongoing monitoring programmes

• Contractor coordination

• Centralised compliance records

• Audit-ready documentation

This ensures risks are controlled and responsibilities are clear.

Conclusion

Legionella compliance is a legal obligation that requires ongoing attention. Facilities management transforms this responsibility into a managed, low-risk process for landlords and managing agents.