Construction Safety Doesn’t End at Handover
Construction projects often focus heavily on building safely.
Risk assessments, method statements, inductions and site inspections dominate attention during the construction phase.
But here is the uncomfortable truth:
Most safety risks are designed into buildings long before construction begins.
And many of those risks only appear after the project is finished.
Unsafe roof access.
Plant rooms with no working space.
Heavy equipment that cannot be safely replaced.
These problems rarely appear in construction statistics because they emerge years later during maintenance and operation.
This is where the Principal Designer role under the Construction (Design and Management) Regulations 2015 (CDM) becomes critical.
The design stage is where long-term safety is either built in — or permanently lost.
The Hidden Risk: Maintenance Over the Building’s Lifetime
A typical construction project may last 12–24 months.
The building that results could operate for 40 to 60 years.
During that time, maintenance teams will need to:
- Service HVAC equipment
- Replace pumps and motors
- Inspect roofs and drainage
- Clean façades and glazing
- Maintain electrical systems
- Access plant rooms and service voids
Every one of these tasks carries risk.
If access, space and protection are not designed properly, maintenance becomes dangerous.
Yet these risks are frequently overlooked during design.
Why?
Because maintenance is out of sight during the construction phase.
Design teams focus on:
- Planning approval
- Programme deadlines
- Construction cost
- Structural design
- Aesthetics
Maintenance safety often becomes an afterthought.
Common Design Decisions That Create Long-Term Risk
Across construction and industrial facilities, the same issues appear repeatedly.
- Unsafe Roof Access
Roof areas frequently require inspection or plant maintenance.
However, access often relies on:
- Fixed vertical ladders
- Narrow access hatches
- Temporary edge protection
- Long travel distances across unprotected roofs
A safer design may include:
- Permanent stairs instead of ladders
- Walkways with guardrails
- Clearly defined maintenance zones
These solutions are far easier to implement during design than after construction.
- Plant Rooms With No Maintenance Space
Plant rooms are commonly designed around installation space, not maintenance access.
This leads to problems such as:
- Pumps installed against walls
- Equipment packed tightly together
- No space to remove motors or components
- Restricted working areas
The result?
Maintenance teams must dismantle equipment in unsafe conditions or work in confined spaces.
Design should always consider:
- Removal routes for equipment
- Working clearance around plant
- Safe manual handling access
- Heavy Equipment With No Replacement Strategy
Large plant such as chillers, air handling units or generators will eventually need replacing.
But many designs fail to consider:
- How the equipment will be removed
- Whether lifting access exists
- Crane positioning or lifting points
Years later, building owners face expensive and risky removal methods.
All because the design did not consider lifecycle maintenance.
- Façade Cleaning Risks
Modern buildings often feature extensive glazing or complex façades.
Without proper design consideration, cleaning and inspection becomes difficult.
Typical issues include:
- No safe anchor points
- Limited access systems
- Inadequate working platforms
This forces reliance on temporary or high-risk access solutions.
Again, these problems are locked into the design stage.
The Principal Designer’s Responsibility
Under CDM regulations, the Principal Designer must:
- Plan, manage and monitor health and safety during the pre-construction phase
- Coordinate designers
- Ensure risks are eliminated or reduced through design by the designers
This responsibility includes future maintenance and use of the structure.
Design risk management should consider:
- Construction
- Use
- Maintenance
- Repair
- Cleaning
- Demolition
However, many projects treat the role as an administrative exercise.
Risk registers are created.
Design risk assessments are filed.
But the deeper design challenge often never happens.
A good Principal Designer does something different.
They ask difficult questions during design reviews:
- How will this equipment be serviced safely?
- Can a person access this roof without fall risk?
- Is there sufficient clearance to remove this pump?
- How will façade cleaning be carried out?
These questions often lead to small design changes with huge safety benefits.
Designing Out Risk Is Always Cheaper
The earlier a risk is addressed, the easier it is to resolve.
During design, a safer solution may involve:
- Changing the layout of a plant room
- Adding permanent access stairs
- Allowing additional clearance space
- Including lifting points
Once construction is complete, the options become limited.
Retrofitting safety solutions is often:
- Expensive
- Disruptive
- Technically difficult
In many cases, the risk remains and maintenance teams must simply work around it.
That is not effective risk management.
Why This Matters for Clients and Developers
Clients and asset owners ultimately inherit these risks.
Poor design decisions lead to:
- Higher maintenance costs
- Increased operational risk
- Difficult compliance obligations
- Greater liability exposure
Conversely, projects that consider maintenance safety during design benefit from:
- Safer building operation
- Reduced lifecycle cost
- Easier compliance with safety legislation
This is why the Principal Designer role should be viewed as strategic, not administrative.
Good design risk management protects the building for decades after construction finishes.
The Key Question Every Design Team Should Ask
Before finalising any design, teams should ask one simple question:
“How will this be safely maintained for the next 40 years?”
If the answer is unclear, the design probably needs further review.
Because the safest buildings are not just safe to build.
They are safe to operate and maintain for their entire life.
