1. Parking charge compliance checks
Most Horizon Parking charges have at least one problem with them: how the notice was issued, what the signs said, how the camera evidence was recorded, or whether Horizon Parking had the right to issue a charge at that site at all. You do not need to know which one applies. That is what the check is for.
Do not pay before checking. Paying ends your right to appeal immediately.
When you upload your notice, we check it across the five areas where parking operators most commonly get things wrong:
- The notice itself: whether issued to the driver, hirer or keeper, a Horizon Parking Notice to Keeper must carry the prescribed wording and, if posted, arrive inside the POFA 2012 deadlines. A defective notice is not enforceable.
- Signs: the terms must have been visible and legible from the driver's position at entry, as the single Code of Practice requires.
- ANPR: the Horizon Parking ANPR entry and exit record must support the exact allegation made, with the grace and consideration periods respected.
- DVLA: the keeper data request must have been made correctly under the KADOE rules.
- Landowner authority: Horizon Parking must hold written authority to issue charges at that site, and can be required to prove it.
2. Prepare your appeal letter
Upload a copy of your Horizon Parking notice and write a short explanation of what happened in your own words. Attach any evidence you have: receipts, photos of the signs, payment screenshots, booking confirmations.
The stronger your evidence, the stronger your appeal. Gather what you can before uploading:
- Your Horizon Parking Charge Notice
- Photos of the signs, taken from the driver's position at entry
- Payment receipts, app screenshots or bank transactions if you paid
- Receipts or booking confirmations if you were a customer on site
- The Horizon Parking ANPR entry and exit times shown on the notice
From there we check every mandatory requirement against your notice (POFA 2012 timing, prescribed wording, keeper liability, ANPR evidence, signage compliance and landowner authority), identify which grounds apply to your case, and write the appeal letter at a professional standard, structured the way a solicitor would present it.
The letter is not a template. It is written around your notice, your explanation and your evidence. If a mandatory requirement has not been met, the letter addresses it directly.
3. Submit your appeal to Horizon Parking
Your letter comes with simple submission instructions. You submit it, save the confirmation, and wait for the response. For the online portal:
- Enter your name, address and email, and appeal as the registered keeper
- For the appeal reason, choose an option that does not identify the driver, such as Other. Do not select an option that implies you were driving
- In the comments box write: Please see the attached letter
- Attach the appeal letter, submit, and keep the confirmation email or a screenshot with the date
If the portal is unavailable, post copies (never originals) by tracked delivery to Horizon Parking Ltd, Finitor House, 2 Hanbury Road, Chelmsford, CM1 3AE, and keep proof of postage.
4. The Horizon Parking decision
Under the single Code of Practice, Horizon Parking must respond within 28 days, and the charge stays on hold while you wait. There is nothing to pay in the meantime.
Two outcomes are possible. Appeal accepted: the charge is cancelled and confirmed in writing. Appeal rejected: the Horizon Parking Appeal Rejection arrives with their reasons, a POPLA verification code and escalation instructions. Keep that letter: the code and the deadline are printed on it.
5. The evidence Horizon Parking should provide
With its decision, Horizon Parking should provide its stage-one evidence: photos of your vehicle at the site, the DVLA KADOE record, and a response to any data request you made.
If the evidence pack is missing or incomplete, raise it at POPLA. An operator that cannot produce adequate evidence at the independent stage is in a much weaker position, and assessors take note.
6. The POPLA appeal
A rejection includes your POPLA code and a 28-day deadline from the date on the rejection letter. Do not delay: the code expires with the deadline.
Worth knowing before you submit: POPLA is funded and operated by the parking industry. It was set up by the British Parking Association, the trade body Horizon Parking belongs to, and the operator pays around £27 for every appeal processed. The default portal questions can lead you into identifying the driver or contradicting your own letter, so follow the submission instructions that come with our letter exactly and add nothing beyond them.
The portal steps in brief: start a new appeal at popla.co.uk, enter your verification code, choose Other as the ground, enter your details, write Please see attached letter as the reason, attach the letter, and submit. Your POPLA password arrives by email so you can track the case.
7. The POPLA assessment
After you submit, Horizon Parking has 21 days to file its evidence pack, and you then have 8 days to comment on it if you wish. The case then moves to an assessor, who allows or rejects the appeal. The whole process typically takes 4 to 6 weeks.
If your letter relies on legal points under POFA 2012, it is usually safe to let POPLA decide without adding anything, unless their evidence pack raises something new.
8. The POPLA decision
If the appeal is allowed, the charge is cancelled and there is nothing further to pay. If it is rejected, we recommend settling at that point: a Court Claim is the only route left open to Horizon Parking, and going there without a strong defence carries more risk than it is worth.
In practice, many well-prepared appeals are resolved before the assessor decides. Processing an appeal costs the operator money, and a correctly submitted case with strong legal grounds often costs more to fight than to cancel. That is why how you submit matters at every stage.
9. About this Horizon Parking guide
This guide is built from eight years and thousands of first-hand parking appeals. It reflects how operators and POPLA actually behave.
Most appeals that fail do not fail because the charge was valid. They fail because drivers explain what happened, rely on mitigation, and never test whether the operator followed the rules. Compliance failures are the winning ground, and the appeal letter checks every one of them.
10. Why Horizon Parking offer early-payment discounts
Private parking enforcement is a high-volume business that depends on quick, quiet payment. The £60 discount on a £100 Horizon Parking charge exists to make paying feel like the safe choice before anyone checks the notice.
Appealing within 14 days holds the discounted rate while Horizon Parking decides, so checking the notice first costs you nothing. Upload it, see your grounds, and decide with the facts in front of you.
Prepare Horizon Parking Appeal
- Your Horizon Parking Charge Notice
- Photographs of the entrance, signs and parking location
- Payment, permit, booking or app records
- Any correspondence or Horizon Parking Appeal Rejection received
