Parking at the Supermarket: a Contract Penalty, Not a Fine

Few parking situations produce as much irritation and as much misunderstanding as the supermarket car park. The reason is a legal one, and knowing it changes how you read the slip under your wiper entirely.

On public roads the road traffic regulations apply, and breaches are dealt with as regulatory offences. On a private supermarket car park they do not apply. Nothing is penalised there in that sense — instead a contractual penalty is asserted.

The contract you enter by driving in

That sounds contrived and is standard practice: anyone who drives onto a private customer car park thereby enters into a contract with the parking operator.

You sign nothing and give no express consent. Driving in is itself treated as acceptance of the offer set out on the signs.

Two things follow, and it is useful to know both.

First: because it is a contract, the operator can largely set the terms itself — including the size of the penalty.

Second: because it is a contract, the offer must have been apparent. And that is exactly where it is decided whether a demand stands up at all.

When the penalty is enforceable

The requirements are concrete, and they concern the signage.

A contractual penalty only comes into consideration where clearly visible signs are displayed setting out:

that this is a customer car park; how long the permitted maximum stay for customers is; and how large the penalty will be.

If one of those elements is missing, or the sign is positioned so that it cannot be seen on entering, the basis of the demand is open to challenge.

So in a dispute I would recommend checking the signage first — at the entrance, not somewhere on the site. A photograph of the situation is worth more than any recollection.

In most cases those signs require a parking disc to be displayed. If none is displayed or the maximum stay is exceeded, the contracted enforcement firms may issue a demand for payment.

What it costs

The sums are lower than the tone of some letters suggests.

Operators set the amount themselves. In most cases the penalty for parking in breach runs between €20 and €30.

As a concrete example: at the Aldi Süd sites in Krefeld, Augsburg and southern Bavaria where the operator Wemolo runs the parking management, the penalty is a flat €35.

That order of magnitude matters to your assessment. These are sums at which litigation rarely pays — for either side. It explains why the letters are often insistently worded and why many people simply pay.

Ground sensors: the end of the parking disc

A development currently changing the process noticeably.

Lidl states that it monitors parking duration at around half of its car parks using ground sensors. That removes the need to display a parking disc.

At first glance that is a convenience, and so it is. But it also means enforcement becomes more complete: a sensor records the duration regardless of whether anybody walks the car park checking windscreens.

In practice that means: do not count on nobody checking. On a growing share of these sites the checking happens automatically.

And it means: read the sign anyway. Whether disc or sensor, it will say — and the maximum stay applies either way.

Where else the same rules apply

The supermarket is the best-known case but far from the only one.

The same construction — private land, a contract formed by driving in, a contractual penalty rather than a fine — applies at the car parks of DIY stores, furniture warehouses, fast food outlets, gyms and hospitals. Station forecourts and airport land are frequently privately managed too.

At hospitals there is an added wrinkle that surprises many: enforcement there is often particularly consistent, because the space is scarce for patients and staff. Visiting a relative and overrunning the maximum stay puts you in exactly the supermarket situation.

The practical consequence is the same everywhere: read the sign at the entrance. It is the contract text, even though it does not look like one.

If you do not pay

A point about which a great deal of half-knowledge circulates online, so treated here with appropriate care.

Because this is a civil claim rather than a regulatory offence, the operator cannot enforce it the way an authority would. It has to be pursued through civil law, and for that the person with whom the contract was formed must be established — that is, the driver, not necessarily the registered keeper.

Precisely this point has been litigated repeatedly in recent years, and the case law is nuanced. So I would expressly advise against relying on rules of thumb from forums.

What I would recommend instead: assess the demand on its merits. Where the signage was present and the breach clear, paying is usually the sensible course at sums of this size. Where you consider the demand unjustified and it is more than trivial, take legal advice rather than ignoring the letters — ignoring them generally achieves nothing except the addition of reminder fees.

The commonest mistake

To my mind it is not forgetting the disc but misjudging the purpose.

These are customer car parks. They exist so that customers can shop, and the maximum stay is set so that this is comfortably possible — typically one to two hours.

Parking there to walk into town, to go to the cinema or to catch a train uses the site for something it is not for. That behaviour is what brought in the parking management in the first place: the stores lost their car parks to non-customers and responded.

Which is incidentally why I have some sympathy for the enforcement, even where individual letters are unpleasantly worded. A customer car park used as free town-centre parking works for nobody.

Where you can park in a city centre properly and predictably is described in parking in Erfurt; for the edge-of-town alternative see park and ride in Hamburg.

The special bays

On larger customer car parks you will find further categories alongside the ordinary spaces, and the same contractual principle governs them — usually on their own terms.

Disabled bays are marked out on private land as well. Because the road traffic regulations do not apply here, enforcement rests with the operator; in practice this category is policed particularly consistently.

Family and parent-and-child bays are a purely private designation. There is no statutory basis for them — they exist because the operator created them, and what applies to misuse is what the sign says.

Electric vehicle charging bays are where conditions are changing fastest at present. It is common for the bay to be usable only while actually charging and for a separate maximum duration to apply.

In all three cases the sum for misuse is often set higher than for simply overstaying. Here too, only what is signed at the particular site governs.

What you should do

Display the disc where the sign requires it — even for ten minutes. The effort is one movement of the hand.

Set the disc correctly. Rounded up to the next half hour from arrival. A wrongly set disc is treated like a missing one.

Photograph the signage and your car with the disc displayed if in any doubt. It takes twenty seconds and is the only evidence you will have later.

Check a demand before paying. Do the registration, place and time match? Was the signage present and legible at the entrance? If so, the demand is generally justified.

And use the site for its intended purpose. That is the only method that reliably works.

How the legal position changes the moment you hand over the key is set out under valet parking.

For the daily commute, park and ride is usually the better fit; a city-by-city tariff comparison is under park and ride in Germany.

All details reflect the position in 2026. Enforcement practice, penalty levels and the technology in use all change, and individual questions are the subject of case law; the signage on the ground governs. For a disputed demand of any size, legal advice is sensible — this piece is no substitute for it. More rules and costs under Costs & Rules.