Who Is the Asbestos Duty Holder? Understanding Your Legal Responsibilities

Asbestos remains the single largest cause of work-related deaths in the UK. With approximately 5,500 people dying each year from asbestos-related diseases -- roughly 105 every week -- the legal duty to manage asbestos in buildings is not a box-ticking exercise. It is a life-saving obligation.

Yet one of the most frequently asked questions in the industry is deceptively simple: who, exactly, is the duty holder?

The answer matters enormously. Getting it wrong can mean asbestos goes unmanaged, tradespeople are unknowingly exposed, and legal liability falls on the wrong shoulders. This guide breaks down the duty holder role, explains how responsibility shifts in different building arrangements, and covers how organisations can delegate effectively.

The Legal Definition

Under the Control of Asbestos Regulations 2012 and the accompanying Approved Code of Practice (L143), the duty holder is defined as:

> The person or organisation that has the main responsibility for maintenance or repair of non-domestic premises.

The critical phrase here is "responsible for maintenance." The regulations were introduced precisely because construction and maintenance tradespeople -- plumbers, carpenters, electricians -- were routinely disturbing asbestos-containing materials (ACMs) without knowing it. The duty to manage asbestos is designed to protect anyone who might come into contact with asbestos during routine building work.

One important boundary: the duty to manage applies to non-domestic premises. It does not extend to individual domestic dwellings such as private houses. However, it does cover:

- Common parts in blocks of flats (corridors, stairwells, lift shafts, lobbies)
- Shared facilities in houses of multiple occupation (HMOs) -- corridors and common areas (though not shared kitchens, bathrooms, and dining rooms)
- Sheltered accommodation work areas (kitchens where staff cook, boiler rooms, roof spaces)

Even where the duty to manage does not apply to domestic premises, other legislation still requires asbestos to be identified before any maintenance, refurbishment, or building work is carried out (Regulation 5 of the Control of Asbestos Regulations 2012, and the Health and Safety at Work Act 1974).

Identifying the Duty Holder: Common Scenarios

Scenario 1: Owner-Occupier

The simplest case. If you own the building and occupy it, you are responsible for all maintenance and repair. You are the duty holder. Full stop.

Scenario 2: Landlord and Single Tenant

This depends on the tenancy agreement. If the tenant has full repairing and maintenance responsibilities for the internal fabric of the building, the tenant is the duty holder for the internal areas. The landlord retains responsibility for the external structure.

This creates a shared duty holder arrangement:

- Tenant -- duty holder for the internal spaces
- Landlord -- duty holder for the external envelope and structure

If the tenant needs to carry out work that passes through the fabric from internal to external (for example, running services through an external wall), they must liaise with the landlord, who should hold knowledge about asbestos-containing materials in the structure.

Scenario 3: Multiple Tenants (Shopping Centres, Office Blocks)

In multi-tenanted buildings, each tenant is typically the duty holder for their own demise (their leased internal area), while the landlord retains responsibility for:

- The external structure
- Common or shared parts (corridors, lifts, car parking areas, service risers)

If the landlord uses a managing agent, the contractual agreement may transfer the duty holder role to that agent. This must be clearly defined in writing.

Scenario 4: Sublet Buildings and HMOs

When a building is sublet -- for example, an owner lets to a tenant who then sublets as an HMO -- the duty holder question comes back to the same principle: who is responsible for arranging maintenance? If something fails in the common parts and someone is called to fix it, that person (or whoever directs them) is likely operating as the duty holder or appointed person.

The Duty to Cooperate

The regulations also place a secondary obligation on anyone who is not the duty holder but who has information about, or control over, the premises. They must cooperate with the duty holder and share relevant information to assist in managing asbestos.

However, this cooperation obligation does not extend to sharing the cost of surveys or management actions. Landlords who attempt to pass survey costs to tenants need to examine who actually holds the maintenance responsibility under the lease.

Can the Duty Holder Delegate?

Yes -- but with important conditions.

Duty holders cannot pass on their legal responsibilities. A chief executive or managing director will always retain ultimate legal accountability. What they can do is delegate the practical management tasks to an appointed person (sometimes called the "responsible person").

For this delegation to work:

1. Adequate resources must be provided -- budget, time, tools, and access
2. The appointed person must be competent -- they need appropriate training and understanding of asbestos management
3. The delegation must be clearly documented

How This Works in Large Organisations

In a large organisation such as an NHS Trust or local authority, the duty holder might be the CEO, but they are unlikely to have specialist asbestos knowledge. A practical delegation structure might look like this:

- Duty Holder (CEO/Managing Director) -- overall legal responsibility
- Appointed Person: Estates Manager -- responsible for protecting internal maintenance teams, external contractors, and emergency services by ensuring they receive asbestos information before any work begins
- Appointed Person: Business/Operations Manager -- responsible for employee awareness and visitor safety within the building

This structure ensures that the people closest to each group of potentially exposed individuals are actively managing the risk, rather than everything funnelling through a single point of contact.

The Problem of Unofficial Work

One scenario that catches organisations out: an employee bypasses the estates department to avoid cost codes, and arranges for someone -- perhaps a family member -- to come in over a weekend to put up shelves or carry out minor works. Drilling into walls without checking for asbestos can cause exposure.

This is why the duty to manage is not solely an estates or facilities concern. All employees who work in a building containing asbestos should understand:

- That asbestos may be present
- That no work on the fabric of the building should start without checking the asbestos register
- Who to contact before any work is carried out

Key Takeaways

1. The duty holder is the person or organisation responsible for maintenance -- not necessarily the owner.
2. Check your contracts. Tenancy agreements and leases determine where the duty falls, especially in multi-tenanted buildings.
3. Shared responsibility is common. In landlord-tenant arrangements, the duty is often split between internal and external areas.
4. Delegation is allowed but legal accountability stays at the top. Appointed persons must be competent and properly resourced.
5. Cooperation is mandatory. Anyone with asbestos information must share it with the duty holder, even if they are not themselves the duty holder.
6. The duty to manage applies to non-domestic premises and common parts -- but other regulations still require asbestos identification before any work in domestic properties.

Understanding who holds the duty is the foundation of effective asbestos management. Without clarity on this point, management plans go unimplemented, registers gather dust, and the people most at risk -- the tradespeople who maintain our buildings every day -- remain unprotected.