Horizon Parking Appeal: PCN Template, POPLA & Court Risk

Last updated: August 2026

Updated August 2026 - 8 min read

Horizon Parking manages car parks at retail parks, supermarkets, leisure centres, and commercial properties across the UK. If you searched for Horizon Parking appeal or Horizon Parking PCN, this guide covers the appeal route, POPLA deadline, evidence to use, and what can happen if you ignore the charge.

What Is a Horizon Parking Charge?

Horizon Parking is a private company. Their PCN is not a council fine. It is a private Parking Charge Notice based on the claim that you breached the terms displayed on their signage. Common reasons for charges include overstaying a time limit, not displaying a ticket, or parking in a restricted area.

Charges are usually £60 to £100, with a discounted rate if you pay within 14 days. Miss the 28-day window and the amount increases.

Horizon Parking is a member of the British Parking Association (BPA), which means they must follow the BPA's Approved Operator Scheme Code of Practice, and rejected appeals go to POPLA. Our complete POPLA appeal guide walks you through the full process.

Your Legal Rights

Under the Protection of Freedoms Act 2012 (POFA):

• If no windscreen ticket was served, Horizon must usually deliver a postal Notice to Keeper within 14 days of the alleged event for keeper liability to apply
• The notice must contain prescribed information including appeal rights
• Signage must be clear, visible, and present at all entrances
• The charge must be proportionate — not a penalty

If Horizon Parking failed on any of these requirements, the charge may not be enforceable against you as the registered keeper.

The Appeal Process: Step by Step

Step 1: Appeal to Horizon Parking Directly

You must appeal to Horizon first before escalating. You can do this:

• Online at horizonparking.co.uk
• By post to the address on your PCN

Include your PCN reference number, clearly explain your grounds, and attach any evidence. Be factual and concise — emotional arguments won't help.

Horizon should respond within 21-28 days.

Horizon Parking PCN Appeal Evidence Checklist

Horizon queries often come from supermarket, retail park, and ANPR notices. Before submitting, gather the evidence that matches the reason on the PCN:

• Overstay: receipt times, disabled access delays, loading time, children or mobility needs, and exit queue evidence.
• ANPR timing: proof of when you actually parked, not just when the car passed the camera.
• Payment issue: screenshots, bank records, app errors, or photos of the machine.
• Unclear signs: photos from the entrance and the bay, including lighting and distance from the signs.
• Notice timing: the parking date, issue date, delivery date, and whether a windscreen notice came first.

Step 2: POPLA Appeal (If Rejected)

If Horizon rejects your appeal, they must provide you with a POPLA code. You have 28 days from the rejection letter to submit your appeal at popla.co.uk.

POPLA is free and independent. An assessor reviews both your evidence and Horizon's evidence, then makes a decision. If POPLA finds in your favour, the charge is cancelled. If they find against you, the charge stands.

Grounds That Actually Work

Signage Problems

The number one ground. The BPA Code requires clear, prominent signs at every entrance and throughout the car park. Signs must state the terms, time limits, charges, and how to pay. If signs were missing, obscured by bushes or other vehicles, too small, faded, or placed where drivers couldn't reasonably see them, you have a strong case.

Visit the car park, photograph every sign (and the absence of signs where they should be), and note the exact conditions. This evidence wins cases at POPLA.

Grace Period Violations

The BPA Code requires a consideration period before charges apply. Horizon Parking must allow a reasonable grace period — typically 10 minutes. If you overstayed by a small amount and no grace period was applied, this is a valid ground.

ANPR Camera Errors

Horizon relies heavily on ANPR. Common errors include misread number plates, incorrect entry/exit times, and failure to record a vehicle that left and returned. If your PCN shows times that don't match your actual visit, gather counter-evidence (receipts, bank statements, dashcam footage).

Notice to Keeper Timing

Count the days carefully. Under POFA 2012, if no windscreen ticket was served first, the postal NTK must usually arrive within 14 days of the alleged event. If a windscreen ticket was served first, different timing rules apply. If the notice arrived late or missed required wording, keeper liability may fail.

Broken Payment Systems

If you couldn't pay because the machine was broken or the payment app wasn't working, this is a strong ground — see our dedicated guide on appealing when the parking machine was broken. You can't be expected to pay when the operator hasn't provided a functioning way to do so. Photograph the broken machine and note the date/time.

Mitigating Circumstances

Medical emergencies, breakdowns, family emergencies, or other circumstances beyond your control can be valid reasons for overstaying. Support your case with evidence — doctor's letters, breakdown receipts, etc.

You Weren't the Driver

If you're the registered keeper but weren't driving, you can transfer liability by naming the driver. If the NTK was properly served, you'll need to provide the driver's details.

Template Appeal Letter

What If You Ignore It?

Horizon Parking can pursue unpaid charges. They may use debt collection agencies and, in some cases, County Court. If you lose in court, you may have to pay the original charge plus court fees and allowed costs.

If you have a genuine case for appeal, use the process. It costs nothing and could save you the full amount.

Timeline

Horizon Parking Contact Details

Website: horizonparking.co.uk

Appeals: horizonparking.co.uk/appeal-a-parking-charge

POPLA: popla.co.uk

Summary

• Horizon Parking charges are private invoices, not council fines
• Horizon is a BPA member — rejected appeals go to POPLA
• Best grounds: signage issues, ANPR errors, grace period violations, NTK timing
• POPLA is free and independent — always use it if your appeal is rejected
• Don't ignore a valid case — the appeals process costs nothing

Sources: BPA/IPC Single Code of Practice, POPLA, Citizens Advice, Protection of Freedoms Act 2012, ParkingEye v Beavis [2015] UKSC 67. Last updated August 2026.