Common Parts, Clear Lines: Asbestos Duty in UK Shared Residential Buildings

As 2026 progresses, many UK residential blocks are entering another year of maintenance, fire-safety remedial work and energy upgrades. In these buildings, the asbestos question is rarely confined to the inside of a flat. Communal corridors, stairwells, service cupboards, riser shafts, bin stores and plant rooms can all contain asbestos-containing materials, yet the paper trail of responsibility often stops at the front door. Freeholders, managing agents, residents’ management companies and RTM companies may each hold part of the picture. The result is a familiar compliance gap: everyone knows the common parts exist, but no one can say clearly who owns the asbestos duty.

Start with the legal test, not the lease title

The starting point is regulation 4 of the Control of Asbestos Regulations 2012. The duty to manage asbestos applies to non-domestic premises and to the common parts of domestic premises. The inside of a private flat is generally outside the scope, but a communal corridor, lift lobby, roof void or shared plant room is not. That distinction matters because dutyholders sometimes assume that residential status removes the obligation entirely.

Identifying the dutyholder is not simply a question of who appears on the title. The regulations place the duty on the person who has, by virtue of a contract or tenancy, an obligation to maintain or repair the premises, or who has control over access. If no such person exists, the owner is the dutyholder. In a block of flats, the freeholder may own the structure while a managing agent instructs contractors, holds keys and approves access. An RMC or RTM company may hold the maintenance obligation under the lease or management arrangements. None of these roles should be assumed; each should be checked against the documents and, more importantly, against what actually happens on site.

Delegation is another trap. A managing agent can carry out the day-to-day work, but that does not automatically remove the statutory duty from the party that retains control. The practical question is who decides what work is done, who authorises intrusive access and who holds the asbestos information. If those functions are split, the arrangement needs to be written down and understood by everyone involved.

Build a responsibility map before reviewing the register

A useful first step is a short responsibility map for the common parts. It does not need to be elaborate, but it should record the legal owner, the party with maintenance and repair obligations, the party that instructs contractors, the party that controls keys and access, and the party that funds work through the service charge. Where an RMC or RTM company is in place, the map should also identify how the managing agent’s authority is defined and where the asbestos management plan sits.

If the map reveals more than one candidate dutyholder, do not leave the answer implicit. Name a lead dutyholder for the common parts and record the basis for that decision. Where responsibility is genuinely shared, set out who maintains the register, who approves contractor work and who signs off remedial action. This is not bureaucracy for its own sake. It is the difference between a management plan that survives a change of managing agent and one that collapses at the first handover.

Survey the common parts as a system

The asbestos register should reflect the building as a whole, not just the areas that are easy to reach. A survey of communal areas should include corridors, stairwells, lobbies, lift motor rooms, riser cupboards, service shafts, bin stores, plant rooms, roof voids and any shared storage areas. Surveyors need access to locked cupboards and riser doors; a visual sweep of the corridor ceiling is not a substitute for inspecting the services above it.

Each ACM should be tied to a location that a contractor can recognise. Floor level, block or core, room name, cupboard number and a photograph are more useful than a generic note such as communal area. The register should also say whether the material is presumed or confirmed, what condition it is in, whether it is accessible, and what work would disturb it. Where access is restricted, that limitation should be recorded rather than hidden. A register that looks complete but relies on assumptions is a weak foundation for maintenance work.

Turn the register into an access protocol

In shared residential buildings, contractor access is where asbestos management most often breaks down. A plumber called to a leaking riser, a fire-door installer working in a lobby, or a leaseholder’s own electrician drilling into a communal cupboard can all disturb ACMs if the register is not consulted first. The dutyholder’s arrangements should make the asbestos check part of the normal work order, not an optional extra.

A practical protocol should require contractors to review the register before starting work, confirm the scope of intrusive activity, and stop if the location or material does not match the information provided. For higher-risk areas such as risers and plant rooms, a permit-to-work or formal access authorisation can help. Keys should be controlled, and the managing agent should know who is on site and why. Residents’ contractors need particular attention: a short notice procedure and a clear warning not to disturb communal finishes will prevent many avoidable incidents.

Refurbishment and demolition work needs a separate check. Before intrusive refurbishment, the dutyholder should ensure that a refurbishment and demolition survey has been carried out where required. Maintenance work may not trigger that level of survey, but it still requires the register to be accurate and available.

Communicate without creating alarm

Residents and leaseholders do not need a technical lecture, but they do need to know that common-part asbestos may be present and that it should not be disturbed. A short annual notice, an onboarding pack for new residents and a clear contact route for proposed works are usually enough. The message should be calm and practical: asbestos in good condition is often best left in place and managed, but any planned work in communal areas should be checked first.

Contractor inductions should cover the same ground. A generic site induction is less useful than a brief, building-specific explanation of where ACMs are known or presumed, how to access the register and whom to call if something unexpected is found.

Audit the arrangements annually

The final step is to check that the arrangements still match reality. Has the managing agent changed? Has a new RTM company taken over? Have communal cupboards been altered, new services installed or ACMs removed? Has the register been updated after remedial work? An annual review should test the responsibility map, the register and the access protocol together. If the building changes hands or the management contract is relet, the asbestos file should form part of the handover pack.

Shared residential common parts rarely produce a single, tidy answer to the dutyholder question. But they do require a documented one. By naming the party in control, mapping common-part ACMs to recognisable locations and making access procedures routine, dutyholders can keep accountability from drifting between freeholder, agent and residents’ company.