Width Restriction Penalties UK: Fines, PCNs & Appeals

You're driving through a narrow residential street, spot a gap you think your van can squeeze through, and — crunch. Or maybe you made it through fine, but a few days later an envelope drops through your letterbox with a Penalty Charge Notice inside. Either way, width restrictions are one of those road features that catch drivers completely off guard, often because the signage is confusing, the markings are faded, or you simply didn't know the rules applied to your vehicle.

Width restriction penalties are increasingly common across UK towns and cities, particularly as councils roll out more moving traffic enforcement powers. If you've received a PCN for a width restriction contravention — or you're just trying to understand how it all works before it happens to you — this guide has you covered.

What Is a Width Restriction and How Is It Enforced?

A width restriction limits which vehicles can pass through a particular road or junction based on their physical width. You'll typically see them at the entrance to narrow lanes, residential roads, or near schools and parks where larger vehicles cause problems.

The legal framework sits within the Traffic Signs Regulations and General Directions 2016 (TSRGD), which governs what signs must look like and how they must be placed. The standard prohibited width sign is a circular red sign showing a measurement in metres — for example, "6'6"" or "2.0m." If your vehicle exceeds that width, you're not permitted to proceed.

Enforcement has traditionally been carried out by police, but councils in London and other areas with moving traffic enforcement powers can now issue PCNs for width restriction contraventions using CCTV cameras. In London, this falls under the Traffic Management Act 2004, which gives Transport for London and individual London boroughs the authority to enforce moving traffic contraventions — including width restrictions — without a police officer being present.

Outside London, enforcement powers are more limited, though more councils are applying for these powers as the government continues to expand civil enforcement across England.

How Much Is a Width Restriction Fine?

The fine amount depends on where the contravention occurred:

• London (TfL or London borough enforcement): £130 for a higher-level contravention, reduced to £65 if paid within 14 days
• Outside London (where civil enforcement applies): Typically £70, reduced to £35 if paid within 14 days
• Police-issued Fixed Penalty Notice: Usually £100 with 3 penalty points, though this varies depending on the specific offence

The discounted payment window is important — once you miss it, you're paying the full amount. And if you ignore the PCN entirely, it escalates to a Charge Certificate (adding 50% to the penalty) and eventually a debt registered with the Traffic Enforcement Centre at Northampton County Court.

Pro tip: Even if you intend to appeal, respond within the discount period. You can make an informal challenge and still benefit from the discounted rate if your appeal is rejected.

The PCN Process: What Happens Step by Step

Understanding the timeline helps you make smart decisions:

1. PCN issued — either by post (from CCTV footage) or, less commonly, served in person
2. 14-day discount window — pay the reduced amount or submit an informal challenge
3. Informal challenge considered — the council accepts or rejects it
4. If rejected: You receive a Notice to Owner and have 28 days to make a formal representation
5. Formal representation considered — if rejected, you receive a Notice of Rejection
6. Appeal to an independent tribunal — in London, that's London Tribunals (formerly PATAS); outside London, it's the Traffic Penalty Tribunal
7. Tribunal decision — binding on both parties

Most people give up somewhere in steps 2 or 3. That's often a mistake, especially with width restriction PCNs, where there are several strong grounds for challenge.

Common Grounds for Appealing a Width Restriction PCN

Width restriction appeals can be surprisingly winnable. Here's what to look for:

1. Signage That Doesn't Comply With TSRGD

This is one of the most effective grounds. Under TSRGD 2016, width restriction signs must meet specific requirements — correct size, correct positioning, correct illumination if required. If the sign was:

• Missing or obscured by vegetation, parked vehicles, or other obstructions
• Incorrectly positioned (too far from the restriction, or not at the point of entry)
• Non-compliant in design (wrong font, faded beyond legibility, incorrect diagram number)

...then the restriction may not be legally enforceable. Take photographs immediately if you believe the signage was defective.

2. Your Vehicle Was Within the Permitted Width

This sounds obvious, but it happens. CCTV cameras can misidentify vehicles, and the width shown on your V5C registration document is the manufacturer's stated width, which may not include mirrors. Some restrictions specify whether mirrors are included. If there's any ambiguity, request the council's evidence pack and measure carefully.

3. Exemptions Apply

Certain vehicles are exempt from width restrictions in specific circumstances — for example, vehicles accessing premises directly adjacent to the restriction, or emergency vehicles. If you were making a delivery or accessing a property that cannot be reached any other way, document this thoroughly.

4. Procedural Errors by the Council

Councils must follow strict procedures when issuing PCNs. If the notice was served incorrectly, contains wrong vehicle details, or the council failed to respond to your representations within the required timeframe, these are legitimate grounds for cancellation.

How to Make an Informal Challenge

Your first opportunity to contest a width restriction PCN is the informal challenge, submitted within 14 days of the PCN being issued. This doesn't need to be formal or legalistic — but it does need to be clear and evidence-based.

Include in your informal challenge:

• PCN reference number and your vehicle registration
• A clear, concise explanation of your grounds
• Supporting evidence: photos of signage, a map showing the location, your vehicle's dimensions from the V5C, any witness statements
• A polite but firm request for the PCN to be cancelled

Send it in writing — email is fine for most councils, but keep a copy and note the date sent. If the council rejects your challenge, don't be disheartened. Many councils reject informal challenges almost automatically, and the formal representation stage (and tribunal if needed) often produces better results.

Pro tip: If you're in London, the council must consider your representations properly. A blanket rejection without engaging with your specific points can itself be raised as a procedural issue at tribunal.

What to Expect at Tribunal

If your formal representation is rejected and you're still confident in your case, escalate to the independent tribunal. The process is straightforward:

• Submit your appeal online via London Tribunals or the Traffic Penalty Tribunal website
• Upload your evidence
• Choose a paper hearing (written decision) or, for complex cases, a personal hearing
• The adjudicator reviews both your evidence and the council's case
• Decision is usually issued within a few weeks

Adjudicators are independent and take signage compliance very seriously. If you can demonstrate that the signs didn't meet TSRGD requirements, your chances of success are genuinely good.

Actionable Next Steps

Whether you've just received a PCN or you're trying to avoid one, here's what to do:

1. Photograph everything immediately — signs, road markings, your vehicle's position, any obstructions
2. Check your V5C for your vehicle's stated width and compare it to the restriction
3. Don't ignore the PCN — respond within 14 days, even if just to submit an informal challenge
4. Request the council's evidence pack — you're entitled to see the CCTV footage and any supporting documentation
5. Research the specific sign using TSRGD 2016 to check compliance
6. Escalate if you have grounds — the tribunal process exists precisely for situations where councils get it wrong

Width restriction PCNs feel like a done deal when they land on your doormat, but the law gives you real tools to fight back — especially when signage is involved. Know your rights, gather your evidence, and don't pay a penny until you're sure the penalty is valid.