Groundwater: Can a landowner extract water from under his land to the detriment of his neighbour?

Imagine: you have just acquired a nice piece of land in Auxonne, with a natural spring that feeds a pond where you plan to fish at weekends. A few months later, the water stops flowing. Your neighbour, living higher up, has had a well dug that taps into the water table. Are you entitled to hold him to account? The question has been debated for centuries. Articles 552 and 642 of the Civil Code, which govern ownership rights over groundwater, seem to favour the owner of the higher land. But how far does this right extend? A decision of the Court of Cassation of 26 November 1974 (No. 73-12.124) provides a clear answer, which continues to guide the courts today.

The Court ruled: a landowner may extract groundwater from his land, even if it harms lower-lying land, provided he does not abuse this right. In other words, the law favours the exploitation of the subsoil but prohibits malicious or useless acts. A nuance that changes everything, as we shall see.

This case, which pits the Société civile de gestion du domaine de Cheffontaine against a certain Mr Calvez, has direct implications for you, whether you are a landowner, purchaser or real estate professional. So, what exactly does the case law say? And above all, how can you avoid finding yourself in a similar situation? Let's dive into the details.

The facts: a story like many that happen every day

In the Dijon region, the Cheffontaine estate was a listed site, known for its picturesque ponds. The société civile de gestion du domaine owned it. But a certain Mr Calvez, owner of a neighbouring upstream piece of land, decided to carry out groundwater extraction there. Result: the springs feeding the Cheffontaine ponds dried up. The site lost its appeal, and the société sued Mr Calvez for abnormal neighbourhood disturbance (i.e. damage exceeding the ordinary inconveniences of neighbourhood).

Did the société win at first instance in Beaune? Not exactly. The case went all the way to the Court of Cassation, which had to determine whether groundwater extraction by a landowner could constitute an abnormal neighbourhood disturbance. The lower court initially followed the société's claim, but Mr Calvez appealed. The Court of Cassation, in its judgment of 26 November 1974, ultimately ruled in favour of Mr Calvez: the extraction was lawful because it fell within the right of ownership of the land, and the damage suffered by the neighbour was merely a normal inconvenience of property ownership.

A twist that surprised more than one landowner in Beaune and elsewhere. But the decision sets an important limit: if Mr Calvez had acted maliciously or without real benefit to himself, the outcome would have been different. In this case, he had a legitimate interest in extracting the water (probably for domestic or agricultural use), and his right prevailed over that of the neighbour.

The court's reasoning — explained

The Court of Cassation relies on two fundamental texts: Article 552 of the Civil Code, which provides that "ownership of the land includes ownership of what is above and below", allowing the owner to exploit the subsoil; and Article 642, which states that whoever has a spring on his land may use it as he wishes, except in cases of abuse. The Court deduces a general principle: a landowner may extract groundwater that seeps or flows into his property, regardless of the damage caused to lower-lying land, provided he does not abuse this right.

Abuse of right? The concept is essential. For there to be an abuse, the landowner must have acted maliciously (for example, to harm the neighbour) or without any benefit to himself. In the Cheffontaine case, Mr Calvez had a real interest in extracting the water: he therefore did not abuse his right. The plaintiff société had to bear the normal inconveniences of neighbourhood, as the Court stated: "these landowners thus suffer the normal inconveniences to which any property is exposed".

You may be wondering: what is the difference with abnormal neighbourhood disturbance? Abnormal neighbourhood disturbance is a judge-made theory (created by the courts) that allows compensation when nuisances exceed ordinary inconveniences. But here, the Court considers that groundwater extraction, even if it dries up a spring, is not abnormal because it stems from the right of ownership. This is a confirmation of previous case law: ownership of the land gives a quasi-absolute right over groundwater, except in cases of abuse. No reversal, therefore, but a strict application of property rights.

For the judges, the balance is clear: on the one hand, the upstream landowner may exploit his subsoil; on the other hand, the downstream landowner must accept the consequences, unless the former acts abusively. A position that favours the economic use of resources, but may seem harsh for the injured neighbour.

What this means for you — practically

If you are the owner of upstream land, you have the right to extract groundwater, even if it dries up your neighbour's well or spring. You do not need their permission. However, be careful not to act out of pure malice or without real benefit: for example, if you extract water solely to deprive your neighbour of their spring, you could be found guilty of abuse of right. Similarly, if your extraction has no benefit to you (you do not use it), the judge could reclassify your act as an abnormal disturbance.

For owners of downstream land, the situation is more delicate. You cannot oppose extraction carried out by the upstream neighbour, unless you can prove an abuse. This means that if you buy a property with a spring, pond or well, you must check upstream that no extraction is likely to dry it up. A hydrogeological study (analysis of groundwater) may be useful. For example, in Beaune, a client recently lost the water supply to his vineyard after a neighbour drilled a well 50 metres upstream. Without proof of abuse, he could not obtain compensation.

Purchasers, be vigilant: during a sale, the absence of a spring or extraction is not always guaranteed. If you notice drying up after the purchase, you may be powerless, unless you can demonstrate that the seller concealed a known risk. In that case, you could take action on the basis of latent defect (a hidden defect that reduces the use of the property). Time limits? An action for latent defect must be brought within two years of discovering the defect. The amounts at stake can be high: for example, the loss in value of land can reach €30,000 to €50,000 depending on the case.

Real estate professionals, this case law reminds you of the importance of disclosing any existing or potential extraction in sale documents. An omission could engage your professional liability (duty to advise).

Four tips to avoid this type of dispute

• Before buying, commission a hydrogeological study: If you are eyeing a plot with a spring or pond, hire an expert to analyse the subsoil and identify existing extractions upstream. Cost: €1,500 to €3,000, but it can save you from much greater loss.
• Document the condition of the property in writing: If you own a spring, take photos, measure the flow rate, and have a bailiff record it (about €200). This will allow you to prove the initial condition in case of subsequent drying up.
• Negotiate a non-extraction easement: When buying downstream land, ask the seller or neighbour to sign a notarial deed undertaking not to extract groundwater. This easement (a charge on the land) must be registered with the land registry to be enforceable.
• In case of dispute, consider mediation: Before embarking on costly court proceedings (several thousand euros), try mediation. A mediator can help you find an amicable solution, such as sharing the water or financial compensation.

Further reading: related case law and developments

The 1974 decision is part of a consistent line of Court of Cassation rulings. One can cite a judgment of 8 March 1965 (Bull. civ. III, No. 172) which already recognises the right to extract groundwater, except in cases of abuse. More recently, a judgment of 15 April 2009 (No. 08-13.811) confirmed this principle: a landowner may drill a well even if it dries up the neighbour's spring, provided the drilling is useful (for example, for irrigation) and not motivated solely by the intention to harm.

Is this case law likely to evolve? The current trend is towards greater protection of the environment and water resources. Some recent decisions, particularly from the Tribunal de grande instance of Dijon, have limited the right of extraction in cases of serious ecological damage (drying up of a protected wetland). But the 1974 principle remains the reference: no abnormal disturbance without abuse. For the future, it is possible that judges will toughen their position in favour of the downstream land, especially if the extraction harms a collective interest (biodiversity, listed landscape). But for now, the right of the upstream owner prevails.

Key points to remember

FAQ:

Can I extract groundwater under my land without my neighbour's consent? Yes, as long as you do not do so maliciously or without benefit. You must have a legitimate interest (domestic use, agricultural, etc.).

What should I do if my neighbour extracts water and dries up my spring? You cannot prevent it unless you can prove abuse. Gather evidence (bailiff's report, expert opinions) to demonstrate lack of benefit or intention to harm.

Is there a time limit for taking legal action? Yes, a civil liability action is subject to a 5-year limitation period from the day the damage became apparent (Article 2224 of the Civil Code). For a latent defect, 2 years from discovery.

Can I negotiate compensation with my neighbour? Yes, you can always reach an amicable agreement. For example, a landowner in Beaune agreed to pay €10,000 to his neighbour to finance a compensatory borehole.

Must a notary inform me of the risks of extraction? Yes, the notary has a duty to advise. If he fails to disclose an existing extraction or a known risk, his liability may be engaged.

In a similar situation? A 30-minute initial consultation with Maître Zakine (€45) can save you months of proceedings — and often much more. Book an appointment →