How to Appeal a Horizon Parking Charge

Horizon Parking Charges: The Legal Basics

Horizon Parking charges are governed by contract law, not the Traffic Management Act 2004. When you park in a Horizon-managed car park, you are considered to have entered into a contract with the landowner on terms set out by the signage. A charge notice is a claim that you breached those terms.

Horizon Parking is a member of the British Parking Association (BPA), which means it must follow the BPA Code of Practice. Crucially, if Horizon wishes to pursue the registered keeper of a vehicle rather than the driver, it must comply strictly with the Protection of Freedoms Act 2012 (POFA 2012), Schedule 4. Failure to meet the notice deadlines or required wording in that Act removes the operator's right to hold the keeper liable.

Deadlines You Must Know

Acting promptly is essential. The typical timeline for a Horizon Parking charge is as follows:

Missing these deadlines does not make the charge disappear, but it can limit your options and remove certain protections. Do not ignore a charge notice.

• ▸Parking Charge Notice issued: you normally have 28 days to pay the reduced early-payment amount or to appeal internally to Horizon.
• ▸Horizon internal appeal decision: if rejected, you will receive a POPLA code valid for 28 days to escalate to the independent adjudicator.
• ▸POFA 2012 keeper liability: Horizon must serve a Notice to Keeper (NtK) on the registered keeper between 29 and 56 days of the alleged contravention to lawfully pursue the keeper.

Step 1 — Appeal Directly to Horizon Parking

Your first step is an informal challenge sent to Horizon Parking. This should be done in writing, ideally via their online portal or by recorded post, so you have a clear record. Do not phone — written evidence matters if the case escalates.

Keep your appeal factual and focused. Attach any supporting evidence such as photos, a valid pay-and-display ticket, a blue badge, a permit, or proof that signage was inadequate. Horizon must acknowledge and respond to your appeal. If they reject it, they are required under the BPA Code of Practice to provide you with a POPLA verification code.

Step 2 — Escalate to POPLA

POPLA (Parking on Private Land Appeals) is the independent appeals service for BPA member operators. Because Horizon is a BPA member, you can use POPLA if your internal appeal fails. POPLA adjudicators are independent of the operator and consider both sides of the case.

Use the POPLA verification code Horizon provides and submit your appeal at popla.co.uk within 28 days of receiving that code. POPLA is free to use for motorists. If POPLA upholds your appeal, Horizon cannot pursue the charge further. If POPLA rejects your appeal, you can still choose whether to pay, but be aware the operator may then consider civil court action.

Strong Grounds for Appealing a Horizon Parking Charge

Appeals that are well-evidenced and focused on genuine legal or procedural issues tend to succeed most often. Vague or unsupported appeals are routinely rejected. The following are grounds that frequently succeed at POPLA or cause operators to cancel charges at the internal stage:

• ▸Inadequate or unclear signage: signs must be prominent, legible and present at the point of entry. If the terms were not clearly communicated, no enforceable contract was formed.
• ▸POFA 2012 non-compliance: if the Notice to Keeper was served outside the 29–56 day window, or lacks required information, keeper liability falls away.
• ▸You were not the driver and the operator cannot prove keeper liability: if POFA requirements are not met, a keeper cannot be held responsible for the driver's actions.
• ▸Genuine grace periods: the BPA Code of Practice requires operators to allow reasonable grace periods to enter and exit. A charge issued within those periods is challengeable.
• ▸Pre-existing payment or permission: a valid ticket, permit, or landowner authorisation that Horizon failed to check.
• ▸Genuine emergency or medical reason with supporting evidence.
• ▸Procedural errors in the PCN itself: missing mandatory information required by the BPA Code of Practice.

What Happens If You Do Nothing

Ignoring a Horizon Parking charge will not make it go away. The charge may be passed to a debt collection agency, and Horizon could ultimately pursue the matter through the civil courts as a small claims case. A county court judgment (CCJ) against you would affect your credit record.

However, private parking operators must follow correct legal procedures every step of the way. If you receive a Letter Before Claim or a court claim form, read it carefully and respond within the stated deadline. At that stage, seeking independent legal advice is strongly recommended.

Tips for a Strong Appeal

A clear, evidence-based appeal gives you the best chance of success. Keep every document you receive from Horizon, note the exact date and time of the alleged contravention, and photograph the location and any signage if you return to the site.

• ▸Write in a calm, factual tone — avoid personal complaints about the operator.
• ▸State your grounds clearly and one at a time.
• ▸Attach all supporting evidence as image files or PDFs.
• ▸Keep copies of everything you send and receive.
• ▸Note all deadlines in your calendar as soon as you receive any document.

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