Young Person Risk Assessment Construction: Legal Requirements and Compliance Guide UK

Young persons entering construction sites represent a specific risk category under UK Health and Safety Law, requiring additional protection beyond standard risk assessment processes. Under the Management of Health and Safety at Work Regulations 1999, employers must assess risks arising from a young person’s lack of experience, immaturity, and limited awareness of hazards before they are allowed to work.

In practice, this requirement is often misunderstood or applied through generic risk assessment templates that do not fully address legal expectations. Within construction environments, (where hazards include work at height, moving plant, manual handling, and live services) the absence of a robust young person risk assessment can expose employers to enforcement action, particularly under CDM 2015 duties.

This article sets out what must be included in a compliant young person risk assessment in construction, and how it differs from standard risk assessment processes.

A young person risk assessment in construction is not a standard risk assessment but a legally required, enhanced assessment that specifically evaluates risks arising from inexperience, immaturity, and lack of awareness, while defining strict supervision, prohibited activities, and control measures before any work is undertaken.

What the Law Requires
Key Legislation Management of Health and Safety at Work Regulations 1999 (Regulation 19)
CDM 2015
Health and Safety at Work Act 1974
Core Requirement You must assess additional risks specific to young persons BEFORE they start work

What Makes a Young Person Risk Assessment Different Key Hazards in Construction
Lack of experienceWork at height
Lack of hazard awarenessMoving plant and vehicles
Immaturity and behaviourPower tools and equipment
Physical capabilityManual handling
Psychological capabilitySlips, trips and falls
Exposure to noise, dust and vibration
Electrical hazards
Site traffic
This is the biggest failure in most templates — they treat it like a standard risk assessment Hazards must be task-specific — not generic

Prohibited Activities (Critical Section) Supervision Requirements
No work at heightDirect supervision at all times
No use of high-risk plantNamed supervisor
No lone workingNo unsupervised tasks
No confined spaces
No live electrical work
No heavy lifting beyond capability
This section is often missing or too vague — restrictions must be explicit “Supervisor name” is not enough — define the level of control

Training & Competence Working Hours (Legal Limits, Under 18s)
Site inductionMax 8 hours/day
Task-specific trainingMax 40 hours/week
Toolbox talksMinimum 12 hours rest between shifts
Confirmation of competenceRest breaks required
“Training will be provided” is not acceptable — it must be recorded and evidenced Often incorrectly applied using adult limits

Emergency Arrangements PPE Requirements
Fire proceduresHard hat
First aid arrangementsHi-vis
Emergency contactsSafety boots
Site briefingGloves
Eye protection (if required)

Risk Assessment Structure (Critical)
A compliant risk assessment must include:

Hazard | Risk | Persons at Risk | Controls | Likelihood | Severity | Rating

Without scoring, it’s not a complete risk assessment

Review & Monitoring Sign-Off & Accountability
Review dateAssessor name & signature
Review if duties changeSupervisor sign-off
Review after incidentDate of assessment
Ongoing supervision
Without sign-off, it has no legal standing

Common Failures in Practice
Generic templates used without task detail
No risk scoring
No defined supervision level
Missing prohibited activities
No evidence of training or competence
No young person-specific risk consideration
These gaps can lead to HSE enforcement action

Market Impact

As scrutiny increases under the Building Safety Act and CDM 2015, documentation quality is becoming a key indicator of organisational competence. Inadequate risk assessments (particularly for vulnerable groups such as young persons) are increasingly viewed as a failure of management systems rather than isolated oversights.

Contractor Implications

For contractors and employers, a compliant young person risk assessment is not optional. It is a legal requirement that must be completed before work begins, and it must demonstrate clear understanding of the individual’s limitations, the site risks, and the control measures in place.

Failure to do so can result in enforcement action, project delays, and reputational risk.

Evidence-Based Summary

Young person risk assessment in construction is not driven by a single requirement but by a combination of legal duties under the Management Regulations, CDM 2015, and practical site risk management. While many organisations rely on generic templates, evidence shows that compliance depends on clearly defined supervision, task-specific hazards, and explicit restrictions on high-risk activities. 

In practical terms, a compliant assessment must go beyond standard risk assessment formats and demonstrate how the individual’s inexperience and limitations are actively managed on site.


Mihai Chelmus
Expert Verification & Authorship: 
Founder, London Construction Magazine | Construction Testing & Investigation Specialist
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