Why signage is the operator's weak spot
Private parking charges are not fines. They are claimed as a breach of contract, and the sign is the contract. For it to bind you, a reasonable driver must be able to see and read the terms before parking.
The BPA and IPC Codes of Practice set out what signs must do, and independent adjudicators uphold a great many appeals where they fall short.
The codes broadly require: signs at the entrance to the parking area; terms prominent and capable of being read before the driver parks; the charge amount stated clearly; and readability in low light, through illumination or retroreflective material. Signs at ANPR entry and exit points must also state the charge.
Failures worth checking for
- No sign visible at the entrance, with the first sign only inside the car park, after you have committed to parking
- The charge amount is not legible, or the key terms sit in tiny print
- The sign is obscured by vegetation, other signage, fencing or a vehicle
- The sign is positioned so it cannot realistically be read before parking: too high, off to one side, or at the back
- You parked at night and there was no illumination or retroreflective signage
How to check, and the evidence that wins
- Go back, or use Street View, and photograph the entrance and the signs, showing position and size
- If it was dark, photograph the signs in the same lighting conditions. An unlit sign at night is a strong point
- Note where the first genuinely readable sign sits relative to where a driver commits to parking
- Keep everything dated
What to do next
Set out the specific signage failure, attach your photographs, and argue that no contract was formed.
Signage Non-Compliance Template
A ready-to-edit appeal letter arguing no contract was formed, with the code of practice references built in. Add your photos and send.
Related: the private parking challenge guide covers the whole process, and if your appeal has been rejected, see how to appeal to POPLA.
The letter for this
Signage Non-Compliance
Written for this specific ground, with the law cited and the evidence demands built in. Complete the placeholders and send it.
Included free with the letter
- The Signs Were Not Good Enough
Frequently asked questions
Can I appeal a parking charge because the signs were unclear?
Yes, and it is one of the most successful grounds at independent appeal. A private parking charge is claimed as a breach of contract, and the sign is how the contract is offered. If a reasonable driver could not see and read the terms before parking, there was no adequate offer, so no contract was formed.
What do parking signs legally have to show?
The trade body codes of practice broadly require signs at the entrance to the parking area, terms that are prominent and readable before the driver parks, the charge amount stated clearly, and signs that can be read in low light through illumination or retroreflective material. Signs at ANPR entry and exit points must also state the charge.
What evidence do I need for a signage appeal?
Photographs of the entrance and the signs showing their position and size, taken in the same lighting conditions as when you parked. If it was dark, a photograph of an unlit sign at night is a strong point. Note where the first genuinely readable sign sits relative to the point where a driver commits to parking, and keep everything dated.
The sign was there but behind a bush. Does that count?
Potentially, yes. A sign that exists but is obscured by vegetation, other signage, fencing or a parked vehicle may not give a reasonable driver a fair opportunity to read the terms. The test adjudicators apply is whether a reasonable motorist would have seen and understood the sign before parking, not whether a sign was technically present.
Is signage a strong ground at POPLA?
It is one of the strongest, because it goes to whether a contract existed at all. If there was no adequate offer of terms, there is nothing to breach and nothing to pay. Photographic evidence makes it concrete in a way that many other grounds are not.
Source: BPA Code of Practice signage requirements, and the contract-formation principle in private parking. Escalation to POPLA (BPA operators) or the IAS (IPC operators). Last checked 18 July 2026. Codes of practice change: check the current version before acting.