The short answer
Erecting scaffolding on or over the public highway without a licence is a criminal offence under section 169 of the Highways Act 1980. The consequences can include a requirement to remove the structure, prosecution, and a fine on conviction. The legal duty falls on whoever erects the scaffold on the highway, which is normally the scaffolding contractor. Beyond the licensing offence, an unlicensed scaffold that obstructs the highway can be treated as an obstruction, and if anyone is injured the absence of a licence and proper controls can feed into civil liability. The exact fine depends on the court and the circumstances, so no fixed figure can be quoted. The practical message is straightforward: the licence fee is small compared with the cost and disruption of being caught without one.
People sometimes treat the scaffolding licence as optional admin. It is not — it is a legal requirement, and skipping it exposes the party erecting the scaffold to enforcement that goes well beyond the saved fee.
Penalties at a glance
- Legal basisHighways Act 1980, s.169
- Nature of offenceCriminal — erecting on the highway without consent
- Duty falls onWhoever erects the scaffold
- Possible outcomesRemoval, prosecution, fine
- Added riskObstruction and civil liability if harm results
Why it is an offence, not just a fee
The Highways Act 1980 protects the public's right to pass along the highway. Section 169 makes it an offence to erect scaffolding on or over a highway without a licence from the highway authority, and to fail to comply with the conditions of a licence once granted. Because the highway is public space, the council needs to know what is occupying it, that it is insured, and that pedestrians and traffic are protected. An unlicensed scaffold bypasses all of that, which is why the law treats it as a criminal matter rather than a simple administrative slip.
The duty attaches to the act of erecting the structure on the highway, so the party most exposed is usually the scaffolding contractor. For a homeowner, this is reassuring in one sense — the legal risk sits mainly with the competent firm — but it is still worth confirming in writing that the scaffolder is licensed, because the disruption of an enforcement step affects the whole job regardless of who is prosecuted.
What enforcement can look like
Enforcement is not a single fixed penalty but a range of responses available to the council and, ultimately, the courts. The likely steps escalate with the seriousness of the situation:
- Notice to remove or licence: the council may require the unlicensed structure to be taken down or properly licensed.
- Prosecution: the highway authority can prosecute the offence under section 169, which is dealt with by the magistrates' court.
- Fine on conviction: a successful prosecution can result in a fine, the level of which depends on the court and the circumstances.
- Obstruction action: if the scaffold obstructs the highway, separate obstruction provisions can also apply.
Because the fine is set by the court case by case, it is not possible to quote a single figure, and any specific number circulating online should be treated with caution. What is consistent is that the financial and practical downside — removal, delay, legal cost, reputational harm to a contractor — is far larger than the licence fee that was avoided.
| Penalty tier | Trigger | Typical consequence |
|---|---|---|
| Administrative | Unlicensed scaffold spotted | Notice to remove or licence it |
| Prosecution | Failure to licence / comply | Magistrates' court proceedings |
| Financial | Conviction under s.169 | Fine set by the court |
| Civil exposure | Injury or damage results | Liability claim against the erector |
Indicative tiers only — outcomes depend on the council and court. No fixed fine can be quoted. Source: Highways Act 1980, s.169.
How an unlicensed scaffold tends to come to light
Unlicensed scaffolds are not usually hidden for long, because they sit in plain view on public land. They tend to come to the council's attention through a few routine channels:
- Neighbour or public complaint: a blocked pavement, an unlit pole or a structure that appears overnight often prompts a report to the council.
- Highways inspections: councils inspect their highways, and an unlicensed structure can be spotted against the list of licences they have issued.
- Parking and enforcement officers: staff working the streets routinely notice obstructions and scaffolding that has no visible licence.
- An incident: if someone is hurt or property is damaged, the licence position is one of the first things examined.
Once flagged, the council can ask who erected the structure and on what authority. Because the legal duty sits with the erector, a competent scaffolder has every reason to keep the licence current and to be able to show it. For a homeowner, the takeaway is that an unlicensed scaffold is not a quiet shortcut — it is visible, traceable and easily checked against the council's own records. The small, predictable cost of doing it properly compares very favourably with the disruption of a complaint, an inspection, or worse, an incident where the missing licence becomes a central question.
The wider risks beyond the fine
The licensing offence is only part of the exposure. An unlicensed scaffold that narrows a footway or projects into the road can be treated as an obstruction of the highway, a separate matter the council can act on. And if the structure causes injury or damage — a fall, a dropped object, a pedestrian forced into traffic — the absence of a licence and the proper controls that go with it can make the position much worse for whoever erected it. Councils require public liability insurance as a condition of the licence precisely because the highway is a public space; an uninsured, unlicensed structure leaves the erector personally exposed if something goes wrong.
For these reasons, treating the licence as essential rather than optional is simply sound practice. The most affordable way through a scaffolding job is to have it licensed, insured and inspected from the outset, so the small upfront cost removes a much larger downside. Because penalties and enforcement detail can change and vary locally, anyone unsure of their position should confirm it with their local authority before work begins.
It is also worth remembering that the licensing offence and the safety duties on a scaffold are separate things, and a problem with one can draw attention to the other. An unlicensed scaffold that fails or causes harm puts the spotlight on whether it was built and inspected to a recognised standard as well as whether it was licensed. A contractor who has cut the corner of the licence may well have cut others, which is why the licence is often read as a marker of how the whole job has been run. Doing it properly from the outset — a licensed, insured, competently erected and regularly inspected structure — is the position that holds up if anyone ever asks questions about it.
Frequently asked questions
Is putting up scaffolding without a licence illegal?
Yes, where it stands on or over the public highway. Section 169 of the Highways Act 1980 makes it a criminal offence to erect scaffolding on or over a highway without the highway authority's licence, so it is not merely an administrative oversight.
Who gets penalised — me or my scaffolder?
The legal duty falls on whoever erects the scaffold on the highway, which is normally the contractor. To protect yourself, confirm in writing that the scaffolder is applying for and holding the licence before work begins.
How big is the fine for an unlicensed scaffold?
There is no fixed figure. A prosecution under section 169 is dealt with by the magistrates' court, and the fine depends on the circumstances and the court. The wider costs — removal, delay and potential liability — usually outweigh the fine itself.
Sources & further reading
- Highways Act 1980, section 169 (legislation.gov.uk)
- GOV.UK — apply for a licence to put up scaffolding or a hoarding
Figures on this page are typical UK ranges drawn from published sources and depend on your specific job. They are guidance, not a quotation.