Can I argue there was no legitimate interest if the car park was empty?

Possibly. The Beavis court focused on the commercial context of the retail park. In a very different context — a deserted car park with no apparent commercial use — the argument that no legitimate interest existed is stronger. However, adjudicators tend to give operators benefit of the doubt on site context. Combine this argument with other grounds (signage, POFA) for best effect.

Does the legitimate interest test apply to the driver and the keeper equally?

The legitimate interest test applies to the contract: was the charge clause part of a valid contract, and does it serve a legitimate interest? This analysis applies regardless of whether the claim is against the driver or the keeper. If the charge fails the legitimate interest test, neither the driver nor the keeper can be successfully pursued.

Is legitimate interest the same as the penalty rule?

The legitimate interest test replaced the older penalty rule following the Cavendish/Beavis Supreme Court decisions. The old penalty rule asked whether the clause was a genuine pre-estimate of loss. The new test asks whether the clause protects a legitimate interest and is proportionate to doing so. Both tests are related but the modern test is broader — it permits enforceable charges that go beyond actual loss, provided the interest and proportionality elements are satisfied.

Legitimate Interest Test

By GetRighted Legal Research TeamLast updated July 2026

Summary

The legitimate interest test emerged from the Supreme Court's reformulation of the penalty rule in ParkingEye v Beavis and Cavendish Square Holdings v Makdessi [2015] UKSC 67. For a private parking charge to be enforceable, the party imposing it must have a legitimate interest in enforcing it — beyond simply recovering its actual loss. At busy retail sites, the interest is turnover management: ensuring parking spaces circulate for customers. Where no such interest can be identified — a private road serving one property, a site with no business use — the charge may still be challenged as a penalty clause without legitimate interest.

What the Supreme Court said about legitimate interest

In ParkingEye v Beavis, the Supreme Court held that a legitimate interest can be wider than compensation for loss. ParkingEye's interest in enforcing parking time limits at a retail park was the commercial interest of the landowner (Cavendish-related Mackay) in maintaining car park turnover for the benefit of retail tenants. The £85 charge served that interest even though ParkingEye itself suffered no direct loss when a motorist overstayed. The key question is: does the party claiming the charge have a real, commercially identifiable interest in the breach being deterred?

Contexts where the legitimate interest test matters most

The legitimate interest test is most relevant where the operator or landowner has no obvious commercial reason to enforce parking strictly. Examples include: private residential roads with no business use; car parks attached to closed or defunct premises; enforcement by operators who appear to have no contractual relationship with the landowner; or situations where the 'car park' is a strip of land with no demonstrated use. In these contexts, challenging whether a legitimate interest exists at all remains a viable defence.

Landowner authority and legitimate interest overlap

The legitimate interest test and the 'no landowner authority' defence are related but distinct. A parking operator may have a legitimate commercial interest in enforcing parking, but if they do not have the landowner's authority to operate on the land, the entire contract fails. Both grounds should be checked: does the operator have authority from the landowner, and does that authority extend to enforcement at the relevant charge level?

Assessing legitimate interest in your appeal

✓Identify the asserted interest: is there a plausible commercial or operational reason for parking enforcement at this specific site?
✓Check who owns the land and whether the operator has authority from them — request the landowner authority agreement via a Subject Access Request if needed.
✓Ask: would turnover or access genuinely suffer without enforcement? An empty private road with no businesses is a different case from a busy supermarket car park.
✓If the charge is being pursued by an entity with no visible connection to the land, challenge whether they have any interest at all.
✓Reference Beavis and the Cavendish reformulation of the penalty rule in your POPLA or IAS submission.

Sources

ParkingEye Ltd v Beavis [2015] UKSC 67
Cavendish Square Holdings BV v Makdessi [2015] UKSC 67
Protection of Freedoms Act 2012, Schedule 4

Frequently Asked Questions

Can I argue there was no legitimate interest if the car park was empty?: Possibly. The Beavis court focused on the commercial context of the retail park. In a very different context — a deserted car park with no apparent commercial use — the argument that no legitimate interest existed is stronger. However, adjudicators tend to give operators benefit of the doubt on site context. Combine this argument with other grounds (signage, POFA) for best effect.
Does the legitimate interest test apply to the driver and the keeper equally?: The legitimate interest test applies to the contract: was the charge clause part of a valid contract, and does it serve a legitimate interest? This analysis applies regardless of whether the claim is against the driver or the keeper. If the charge fails the legitimate interest test, neither the driver nor the keeper can be successfully pursued.
Is legitimate interest the same as the penalty rule?: The legitimate interest test replaced the older penalty rule following the Cavendish/Beavis Supreme Court decisions. The old penalty rule asked whether the clause was a genuine pre-estimate of loss. The new test asks whether the clause protects a legitimate interest and is proportionate to doing so. Both tests are related but the modern test is broader — it permits enforceable charges that go beyond actual loss, provided the interest and proportionality elements are satisfied.

Parking Charge Notice
excessive-charge
no-landowner-authority
Proportionality Test

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