Right of View: When Your Neighbour's Window Blocks Your Construction

Picture the scene: you have just bought a lovely house in Villeparisis, with a garden overlooking a field. You plan to build a garden shed, or perhaps an extension to enlarge the kitchen. But your neighbour, the owner of the field, flatly refuses: 'My window has overlooked your land for more than thirty years, you cannot build anything that deprives me of my view.' The question every property owner asks: is a simple window enough to block my plans? And if so, how can it be proved?

This decision of the French Supreme Court of 5 February 1970 (No. 68-10.358) provides a nuanced answer: determining the character of openings made in another's property — in other words, whether a window constitutes a 'view' in the legal sense — is a question of fact. This means that it is the trial judges (Tribunal de Grande Instance, Court of Appeal) who have full discretion to assess, on a case-by-case basis, whether the opening meets the conditions to create a right of view.

In plain language: just because a window has existed for a long time does not automatically create a right over the neighbouring land. Everything depends on its characteristics: dimensions, height, orientation, direct or oblique view. And it is for the judges to decide, without the Supreme Court systematically contradicting them. A decision that reassures property owners, but makes proof more complex for those claiming a right acquired by prescription (prolonged use).

The Facts: An Everyday Story

We are in the 1960s, perhaps in Claye-Souilly or its surroundings. Mr. X is the owner of a plot of land on which, since 1919, there has been a building with windows overlooking the neighbouring plot belonging to Mr. Y. Mr. Y, wanting to build, faces opposition from Mr. X, who claims a right of view (right to a view over the neighbouring land) acquired by thirty-year prescription (use for more than thirty years). Mr. Y disputes the very existence of this right of way, arguing that the windows do not constitute 'views' in the legal sense.

The dispute is brought before the court. The trial judges order an expert report to determine whether, since 1919, the windows have provided a direct view over Mr. Y's land. The expert must in particular verify whether the openings are 'views' or mere 'light openings' (openings that do not allow seeing, but only let in light). Mr. Y challenges the expert's terms of reference, considering them too broad. The Court of Appeal then modifies the terms, limiting the expert report to the sole question of the parties' agreement.

Mr. X appeals to the Supreme Court. He argues that the trial judges should have maintained the initial expert report, because proof of the right of view had existed for more than thirty years. The Supreme Court dismisses his appeal: determining the character of the openings is a question of fact, and the trial judges have full discretion to decide the terms of the expert's mission. In other words, they are free to assess whether an expert report is useful and on what points it should focus.

The Reasoning of the Court — Analysed

The Supreme Court relies on the principle that the classification of an opening as a 'view' or 'light opening' falls within the full discretion of the trial judges. Under French law, the right of view is governed by Articles 675 and following of the Civil Code, which distinguish between 'views' (openings allowing a view over the neighbouring land) and 'light openings' (simple openings letting in light). For a right of view to be acquired by prescription, the opening must have existed for more than thirty years and must constitute a 'view' in the legal sense.

In this case, the trial judges considered that the proof of the character of a view had not been provided, and that the expert report sought by Mr. X was actually aimed at proving an agreement between the parties, not the nature of the opening. The Supreme Court validates this approach: the trial magistrates are best placed to assess the facts and decide on the necessary investigative measures. It recalls that the Supreme Court does not review facts, but only the correct application of the law. Here, the law was correctly applied.

This decision confirms consistent case law: trial judges have broad discretion in matters of rights of view. It also illustrates an important procedural rule: the judge may modify the expert's mission if he considers it too broad or unsuitable. For litigants, this means that the court retains control over the evidentiary process.

What This Changes for You — Concretely

Concretely, this decision has significant implications for all property owners, whether in Villeparisis, Claye-Souilly or elsewhere. If you own a piece of land overlooked by a neighbouring window, you can challenge the existence of a right of view by arguing that the opening is merely a 'light opening'. Conversely, if you are the owner of the window, you will have to prove that it is indeed a view and that it has existed for more than thirty years.

Let's take a concrete example: in Claye-Souilly, a property owner wants to build a house 1.50 metres from the boundary line. The neighbour objects, claiming that his roof window, installed in 1985, constitutes a direct view. The owner can ask the judge to find that this window is not a view (for example, because it is fitted with opaque fixed glass). If the judge agrees, the construction can proceed. Otherwise, he must observe a minimum distance of 1.90 metres (Article 678 of the Civil Code) or negotiate a conventional right of view.

For buyers, this is a point of vigilance: before purchasing a property, check the openings overlooking the neighbouring land. An undeclared right of view can block your extension plans. For co-owners, the same logic applies: a co-ownership window overlooking a private area can create a right of view in favour of the co-ownership.

Four Tips to Avoid This Type of Dispute

• Have a condition survey carried out before any project: Before buying or building, have a bailiff's report drawn up precisely describing the existing openings (dimensions, height, nature of glazing). This report can serve as evidence in case of a dispute.
• Check the age of the openings: A right of view is acquired only after thirty years of peaceful and unequivocal existence. If the window is less than thirty years old, it cannot create a right by prescription. Ask for deeds of sale or old photos to date the opening.
• Negotiate a conventional right of view: If you are the owner of a window and want to secure your right, propose to your neighbour to sign a right of view agreement, possibly in exchange for compensation. This will avoid a future lawsuit.
• Consult a lawyer before taking action: The classification of 'view' or 'light opening' is technical. A specialist lawyer can help you gather evidence and assess your chances. A judicial expert report costs between €1,500 and €5,000; better to be sure of your legal position.

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Further Reading: Related Case Law and Developments

This 1970 decision is part of a consistent line. The Supreme Court has repeatedly reaffirmed the trial judges' full discretion in matters of rights of view (Civ. 3e, 12 July 2000, No. 98-18.456; Civ. 3e, 10 September 2015, No. 14-18.233). A more recent decision (Civ. 3e, 13 February 2020, No. 18-26.042) specifies that the view must be direct: a window overlooking a party wall does not create a right of view if it does not allow a view of the neighbouring land.

The tendency of the courts is to protect the right of property: in case of doubt, they lean towards the absence of a right of view. The burden of proof lies on the person claiming the right (Article 1315 of the Civil Code, now 1353). For the future, the increase in constructions on boundary lines may lead to a tightening of the conditions for prescription.

Checklist Before Taking Action

FAQ: 5 Practical Questions

1. Is a roof window a view? Not necessarily. If it is in opaque fixed glass or if it is inclined in such a way as to allow only a downward view of the sky, it may be classified as a mere light opening. Only the judge can decide.
2. Can I build if my neighbour's window is less than thirty years old? Yes, because the thirty-year prescription has not been acquired. You can therefore build at the legal distance (1.90 m for a direct view, 0.60 m for an oblique view).
3. What should I do if my neighbour claims to have a right of view? Ask him to prove the date of creation of the window and its character as a view. If he cannot, you can challenge it. Apply to the court if necessary.
4. What is the cost of a bailiff's report? Expect between €150 and €300. It is a useful investment to avoid a later dispute.
5. Can I sell my property with an undeclared right of view? Yes, but you must inform the buyer (Article 1638 of the Civil Code). Failing that, he could ask for a reduction in price or damages.

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