CDM 2015 for Sole Traders: What the Regulations Actually Require

A lot of sole traders assume CDM 2015 is something for the big boys. The Balfour Beattys and Kier Groups of the world. Large sites, multiple contractors, dedicated safety officers. Nothing to do with a one-man band fitting kitchens or rewiring houses.

That assumption is wrong, and it can cost you work or land you in trouble with the HSE.

CDM 2015 applies to every construction project

The Construction (Design and Management) Regulations 2015 cover all building and construction work in Great Britain. That includes new builds, refurbishments, extensions, conversions, repairs, maintenance, and demolition. There is no small project exemption. If you're doing construction work, CDM applies to you.

The regulations came into force in April 2015 and replaced the earlier CDM 2007. One of the biggest changes was bringing domestic projects (work on private homes) fully under the regulations for the first time. So yes, that bathroom refit you're doing for a homeowner is covered by CDM 2015.

What's a "contractor" under CDM?

Under the regulations, a contractor is any individual, sole trader, self-employed worker, or business that carries out, manages, or controls construction work. If you're doing the work, you're a contractor. It doesn't matter whether your workers are employees, self-employed, or agency workers. The duties still apply.

Your duties as a sole contractor on a project

If you're the only contractor on a project (which is common for sole traders), your duties are more manageable than you might think.

Check the client knows their duties. You're not allowed to start work unless you're satisfied the client is aware of their CDM responsibilities. For a domestic client (homeowner), their duties automatically transfer to you as the contractor. You still need to make sure they understand what's happening on their property.

Plan, manage, and monitor the work. This means thinking through the risks before you start, having a method for doing the work safely, and keeping an eye on things as you go. For a sole trader, this is largely common sense, but it needs to be documented.

Prepare a construction phase plan. On a single-contractor project, you need a construction phase plan before work starts. This doesn't need to be a 50-page document. For a small domestic job, it can be a simple document covering the scope of work, key risks, how you'll manage them, and emergency arrangements. A good RAMS essentially covers this.

Have the right skills, knowledge, and experience. You need to be competent for the work you're doing. This means relevant qualifications, training, and experience, and being honest when a job is outside your competence.

Ensure welfare facilities are available. Access to toilets, washing facilities, drinking water, and somewhere to take breaks. On domestic projects, the homeowner's facilities usually suffice. On commercial sites, the principal contractor sorts this out.

Prevent unauthorised access. If the site could be dangerous to the public (open excavations, scaffolding, removal of floors), you need to take reasonable steps to prevent access.

When things get more complicated

If you bring in another contractor, even one subcontractor for a day, the project now has more than one contractor. This triggers additional CDM requirements. A principal designer and principal contractor must be appointed. If nobody's been formally appointed, those duties fall on the client, or on you for a domestic project.

This is where a lot of sole traders get caught out. You take on a kitchen job, subcontract the electrics to a spark, and suddenly you might be acting as principal contractor without realising it.

What happens if you don't comply?

The HSE can issue improvement notices, prohibition notices (stopping your work immediately), or prosecute. Fines for CDM breaches are uncapped for individuals and can reach millions for companies. In practice, for a sole trader on a small job, the most likely outcome of an inspection is an improvement notice and a requirement to produce the missing documentation. But if someone gets hurt and you can't show you assessed the risks and planned the work, it gets much more serious.

It's also worth knowing that many principal contractors now check CDM compliance as part of their subcontractor vetting. If you can't produce a construction phase plan or site-specific RAMS when asked, you won't get on site.

Practical steps for sole traders

The honest truth is that CDM compliance for a sole trader on small projects is mostly about having the right paperwork and being able to demonstrate you've thought about safety. A well-written RAMS specific to each job covers most of your contractor duties. A simple construction phase plan template fills the rest.

We offer free downloadable templates for RAMS, risk assessments, COSHH assessments, method statements, and site safety plans. No login, no trial, no strings. Download as Word, PDF, or HTML and start using them today.

If you want CDM-specific templates including construction phase plans, pre-construction information packs, and trade-specific RAMS with the common hazards already filled in, that's what YourComplianceDocs is built for. Over 250 templates across 21 UK trades. Pick your template, fill in the project details, and export a branded PDF in minutes instead of spending your evening on paperwork.