Principal Designer Health & Safety Advice
Expert Principal Designers who understand Design & COnstruction
We don’t take on the legal duty of Principal Designer. Instead, we act as your strategic advisor – someone who knows the CDM rules inside out, understands what actually happens on site, and will help you build a solid, defensible, and genuinely helpful process.
Havio offer Principal Designer & CDM advice to clients, developers, architects and contractors.
We have £10m professional indemnity insurance which is a requirement on many projects.
Why people usually end up calling us What Goes Wrong
The Principal Designer role is one of the most misunderstood (and poorly delivered) parts of CDM.
In theory, it’s about designing out risk early and coordinating the team to make smart, safe decisions before boots hit the ground.
In reality it’s often just someone recycling documents from another job, saying very little, and vanishing the moment things get complicated.
We don’t work like that. And we’ve seen it all before – here’s what usually goes wrong, and how we step in to put things right.
FAQs
What’s the issue with reused PCI packs?
Generic pre-construction information is one of the most common signs that risk hasn’t been properly considered.
When we see PCI packs lifted from past projects – with the wrong client name still in there – it tells us nobody’s looked at the specific risks for this site, this team, and this build.
At Havio, we work with your team to gather real project-specific insights, not tick-box boilerplate.
That way, the PCI becomes a useful planning tool and definitely not a filler doc to file and forget.
No one seems to know who is doing what
This should be covered in appointments and briefings… but in reality, a lack of clarity between the client, designer, contractor, and everyone else is a major risk – and a common failure under CDM.
People assume others are handling risk management, and gaps get missed.
Our role is to step in early to map out responsibilities, help teams understand their duties, and remove any grey areas before they turn into red flags.
Design risk register? What design risk register?
This is where things often fall apart. The design risk register should show how each designer has considered risk and what they’ve done to eliminate or control it.
But too often, it’s either missing entirely or just a half-hearted summary someone’s knocked up the night before a meeting.
Havio helps coordinate this properly by chasing the right people, checking it’s accurate, and making sure the register reflects the real decisions made throughout the design process.
It's a mess - there are zero comms between Design team and site
It’s big deal this – because the safest designs in the world mean nothing if nobody on site knows the rationale behind them. If information isn’t passed clearly from design to construction teams, you end up with confusion, workarounds, and avoidable risk.
We help bridge that gap by translating design decisions into plain language, joining site meetings, and making sure important information doesn’t get lost between RIBA stages.
Don't we just need a handover document quickly put together at the end?
Too often we see it all slapped together at the end. A good H&S file tells the story of the project’s risk management – it protects your client, supports future works, and shows due diligence. But most of the time, it’s thrown together in a rush, full of missing information and useless filler.
We build it as we go, collecting what’s needed from the start, so there’s no last-minute panic, and zero risk of handing over a file that’s not fit for purpose.
How we get it right
The way we work as Principal Designer advisors is hands-on, informed by real construction experience, and focused on helping you get things right from the start.
Here’s what we actually do – and how it helps you.
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Make sure your project is CDM-compliant from the start
We get involved early - often at RIBA Stage 1 or 2 - to help you understand your duties and get everything in place.
That includes advising on appointments, information sharing, and the legal stuff you’re expected to do.
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Review and enhance pre-construction information
We compile the PCI. If it’s vague, recycled, or missing key data, we’ll help improve it.
The goal is a document that actually helps the design and construction teams make good decisions.
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Chase designers (nicely) to eliminate or reduce risk
Coordinating the design team is a huge part of the role.
We act as the voice that nudges, questions, and encourages people to think about safety while there’s still time to fix things on paper (not after it’s built!)
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Spot where design decisions could cause issues on site
We’ve got a lot of experience both in design and on site. That means we know when something that looks good on screen is going to be a headache (or worse) in the real world.
We’ll flag these issues early, so you’re not dealing with cost and safety problems later.
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Build and maintain a proper Design Risk Register
This is where most PD work falls down. We help create a live, working document that clearly shows how each design risk is being dealt with.
And we keep it moving, so it’s not something you revisit once and forget.
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Get your Health & Safety File done right (not rushed at the end)
Rather than panic-building it at the end of the job, we help gather the right info throughout. That way, the file’s useful, accurate, and ready when it needs to be.
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Give clients and contractors confidence that risk has been thought through
Havio brings a sure footed approach to the process. Clients feel reassured and contractors know there’s been proper thought behind the designs. The entire project runs more smoothly because risk is built in from day one.
Client CDM Advisor
We do everything required to help you fulfil your legal duties.
You can’t transfer your responsibility to anyone else, but you can get help!
We work in a flexible way, and you may not need all of these services, but we typically help commercial CDM clients with the following:
Principal Designer Advisor
Helping you with your Principal Designer duties to comply with CDM 2015.
Each project varies, but there are similarities in what we do throughout each project and RIBA stage.
Does this sound right for you?
This service is not for the likes of massive tower blocks or those looking to fully outsource risk. It’s specifically targetted towards:
- Fit-out and Interior Workspace contractors
- Design & Build specialists
- Developers running small to medium sized programmes
- Clients who know their duties but want proper support and advice
We’ve seen the messes. The generic copy-paste policies. The vanishing principal designer. The endless back-and-forth that eats time and adds no value.
We’re not here to make your life harder or throw more paperwork at you – we’re here to take this part off your desk and do it properly.
We know where the pitfalls are, and we’re not afraid to have the awkward conversations early, so you don’t get stung later.
Call Havio and we’ll help you do it right.
ready to take back control?
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Let’s talk about what’s working, what’s not, and where you want to go.
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Know your projects are on track, your people are protected, and your costs are under control.















