A lone working risk assessment is a structured look at the additional hazards faced by workers who carry out their work without the close supervision or support of colleagues. The category covers more people than most employers realise: care workers visiting service users at home, drivers, security staff on isolated sites, retail workers on early or late shifts, agricultural workers, estate agents conducting viewings, and the small army of contractors who work alone in other people’s premises.

There is no general “Lone Working Act”. In Great Britain, employers must assess and control lone-working risks under the Health and Safety at Work etc. Act 1974 and the Management Regulations 1999. Some activities have additional specific restrictions. Northern Ireland has separate corresponding legislation.

Who counts as a lone worker

A lone worker is anyone who carries out activities without close or direct supervision. The category includes workers physically alone for parts of the shift, workers in workplaces where colleagues are present but out of sight or hearing, and workers operating remotely from their base with limited contact during the working day.

Common examples: community-based healthcare and social care staff, district nurses, home visiting professionals, sole-charge retail workers, late-shift cleaners, security guards on isolated premises, lone drivers, agricultural workers, lone manufacturing operators, contractors carrying out maintenance in other people’s premises, estate agents on viewings, and homeworkers who never see a colleague during the working day.

Some workers fall in and out of lone working depending on the shift pattern. A care home worker may have colleagues nearby during the day and be effectively lone working on the night shift. A lab technician may have colleagues most of the time and be alone in the building when finishing late. The assessment should cover all the situations in which the worker is effectively lone, not just the obviously isolated ones.

The duty under section 2 of the Health and Safety at Work etc. Act 1974 is for employers to ensure the health, safety and welfare of their employees so far as is reasonably practicable. Section 3 extends the duty to anyone else affected by the work. Regulation 3 of the Management of Health and Safety at Work Regulations 1999 requires a suitable and sufficient assessment of all foreseeable risks. Lone working is a foreseeable risk and must be assessed wherever it occurs.

Several other regulations apply alongside the general framework. Where the lone work involves hazardous substances, COSHH applies. Where it involves work at height, the Work at Height Regulations 2005 apply. Where the lone worker is pregnant, regulation 16 of the 1999 regulations (covered on our pregnancy risk assessment page) engages. Where the lone worker is under 18, regulation 19 (covered on our young persons risk assessment page) engages.

What lone working doesn’t have is a single statutory instrument. Online guides that imply a “Lone Working Act” or specific “Lone Worker Regulations” are wrong — and the misconception matters because workers and employers framing the duty around the wrong regulation often miss the actual one.

Common risks for lone workers

The hazards that distinguish lone working from supervised working fall into five broad categories.

Violence and aggression

Working alone can make a person more vulnerable to violence and reduce access to help. Consider the activity, people encountered, location, time and history of threats or aggression. Use relevant information and precautions rather than assuming every lone worker faces the same level of risk.

Accident or illness with no immediate help

A lone worker who slips, falls, suffers a sudden medical event or is involved in an accident has no colleague to call for help. The harm from the original event may be modest; the harm from the delay in getting assistance can be catastrophic.

Environmental hazards

Remote or isolated work can make rescue and communication harder. Assess weather, location, access, equipment and the help needed if conditions deteriorate; decide whether the task can safely be done alone.

Mental health

Sustained isolation, lack of social contact during the working day, and the absence of informal peer support are recognised contributors to stress-related ill health. This intersects with stress risk assessment — the two duties run in parallel for lone workers whose role is also stressful.

Communication failure

Where the worker’s connection to base depends on a phone, a radio or an alarm device, the failure of that link is itself a hazard. Areas of poor mobile signal, devices with dead batteries, or systems where alerts are missed by the monitoring station create the very situation the lone worker most needs protection against.

The assessment in practice

The assessment follows the same general method we cover on our five steps page, translated into lone-working terms.

Identify what the worker actually does, where, and when. A care worker visiting unknown addresses faces a different risk profile from a lab technician working late in a controlled building. A taxi driver works alone differently from a maintenance contractor.

Identify who they could encounter and what could go wrong. Members of the public, service users, others on the premises, the worker’s own health, the environment, the equipment, the route. The HSE recommends thinking through a typical shift step by step rather than working from a generic hazard list — the realistic risks emerge from the actual activity, not from theoretical lists.

Decide what controls are in place and whether they’re enough. The next sections cover the practical control measures.

Record the assessment, brief the worker, and review.

Control measures

Lone-worker alert assessed by a monitoring centre under agreed response procedures

Lone working controls fall into three layers: procedural, equipment-based, and competence-based.

Procedural controls

Buddy or check-in systems where the worker signals safe arrival at and departure from each location. Defined working hours with notification protocols outside them. Risk-banded address registers identifying premises with known concerns. Two-person attendance for known higher-risk visits. Pre-visit information sharing. Defined escalation paths when a check-in is missed. Driving and parking guidance for visits to unfamiliar areas.

Equipment controls

Lone-worker alarms, communications and monitoring services can support the arrangements, but they need reliable coverage, charged equipment and a defined response. BS 8484 addresses lone-worker services. Certification does not guarantee a particular police arrival time or make every alert an automatic priority response.

Competence and training

Lone workers need specific training in dynamic risk assessment, in conflict de-escalation where relevant, in the use of any equipment provided, and in the procedures the employer has put in place. Generic safety induction isn’t enough.

Select controls for the actual risks. Some work cannot safely be done alone. For lower-risk work, proportionate communication and emergency arrangements may be sufficient, but a device or check-in routine is not a substitute for assessment.

The dynamic risk assessment overlap

Lone working is the area where written and dynamic risk assessment interact most heavily. The written assessment can’t predict the exact conditions of each visit or each shift; the dynamic assessment fills the gaps when the worker arrives at the doorstep, reads the room, and decides whether to proceed.

This combination is the right answer. We see employers who treat their lone working duty as “trust the worker to dynamically assess each situation” — that doesn’t satisfy the regulations. We also see employers whose written assessment is detailed but who give workers no autonomy to back out of situations that don’t match the plan. Both fail.

A robust lone working approach has a comprehensive written assessment that anticipates the foreseeable hazards and sets out the controls, and a workforce competent and authorised to apply dynamic judgement to the specific situations the written assessment couldn’t predict.

A worked example

Illustrative example: a small home-care provider sends carers to visit older service users. The following is an example of issues and controls to assess, not a complete care-provider procedure.

Foreseeable hazards include verbal aggression from confused service users or family members, slips and falls in unfamiliar homes (loose rugs, poor lighting), manual handling of service users (covered separately under the manual handling assessment), driving between visits, lone arrival at unknown addresses, and the small but real risk of finding a service user in medical crisis.

Controls in place: a shared digital schedule with check-in times for each visit, a buddy system where the carer texts arrival and departure to a designated contact, lone worker devices with GPS and a single-button alarm linked to a BS 8484-certified Alarm Receiving Centre, risk-flagged service user records identifying known concerns, a written escalation procedure for missed check-ins, and structured training covering all of the above plus de-escalation.

The provider sets a review schedule appropriate to the risks and reviews sooner when service users, tasks or circumstances change, or concerns arise. Carers also reassess conditions at each visit and can stop and seek help.

Records and review

The assessment should cover the role, the typical pattern of work, the foreseeable hazards, the controls in place, training requirements, equipment provision, and the review date. Where individual workers have specific circumstances — a pregnant lone worker, a young lone worker, a lone worker with a disability — those need to be considered alongside the role-level assessment.

Review is required when the role changes, the equipment changes, an incident or near-miss occurs, or there’s reason to think the assessment is no longer valid. Lone working assessments often warrant more frequent review than office-based assessments because the conditions are more variable and the consequences of failure are higher.

Where this connects in the cluster

Lone working intersects with dynamic risk assessment more closely than any other vertical. It also connects with working from home risk assessment (home workers without colleagues are lone workers for parts of their day), stress risk assessment (sustained isolation contributes to stress), and dynamic risk assessment for the per-visit decisions.

For organisations with significant lone working populations — community healthcare, social work, housing, security, retail — competence in assessing and managing lone working risk is one of the higher-leverage areas of safety management. Formal Risk Assessment Training covers the general method that underpins lone working assessment, with role-specific lone working procedures layered on top.

Frequently asked questions

Is there a specific lone working law in the UK?

There is no general statute named the Lone Working Act. In Great Britain, general health and safety assessment and control duties apply, with additional rules for some activities. Northern Ireland has separate legislation.

Can people legally work alone in the UK?

Yes, in most circumstances. There are some specific activities where lone working is prohibited or restricted — for example, certain confined-space and electrical-isolation work — but lone working in general is lawful provided the risks are properly assessed and controlled.

What is BS 8484?

BS 8484 is a British Standard for the provision of lone-worker services. Check the current certification scope, monitoring arrangements and applicable police response policy. Certification does not guarantee a response time or automatic priority for every alarm.

What’s the difference between a lone worker and an isolated worker?

The terms are often used interchangeably. Some employers use “isolated worker” specifically for workers in remote or hard-to-reach locations and “lone worker” for the broader category of anyone working without close supervision. The legal duty is the same regardless of the terminology.

Do I need a separate lone working risk assessment if my general risk assessment already covers the work?

The lone working dimension has to be specifically addressed somewhere. That can be within the general workplace assessment or as a separate document. What matters is that the additional hazards of lone working are identified and the controls are recorded — not the format the assessment takes.

Sources & references

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Mark McShane
Mark McShane
Health & Safety Training Specialist, Online CPD Academy

Mark writes about workplace health & safety, risk assessment and accredited online training for Risk Assessment Training, part of Online CPD Academy.