Parcel Inquiry: Minimum Duration of 15 Days Imposed by the Constitutional Council

Imagine: you are the owner of a small house in Nice, in the Ariane district. One morning, you receive a public inquiry notice for a road development project. You are told the inquiry lasts 10 days, and you must submit your observations quickly. You wonder: is this legal? Can I challenge this deadline?

This question arises every time a local authority wants to expropriate land to build a road, school, or housing estate. The owner must be able to consult the file and respond. But what is the minimum period?

The Constitutional Council answered clearly in 1978: the parcel inquiry (the one that precisely identifies the parcels concerned) must last at least 15 days. This is an essential guarantee for any owner. Analysis of this decision and its practical consequences.

The Facts: a story like many others

In 1976, the prefect of the Alpes-Maritimes initiated an expropriation procedure for a public utility project in the commune of Menton. To do so, he opened two inquiries simultaneously: a public utility inquiry (which justifies the project) and a parcel inquiry (which lists the parcels to be expropriated).

The problem? The prefectural order set the duration of the parcel inquiry at only 10 days. An owner, Mr X, challenged this duration before the court. He argued that the decree of 6 June 1959 (Article 14) required a minimum duration of 15 days, and that 10 days violated his rights.

The case went up to the Constitutional Council, which decided in 1978. The judges annulled the prefectural order, finding that the 10-day duration was insufficient. In short, the prefect should have provided for 15 full days, i.e., 15 times 24 hours.

The Court's Reasoning — Analysed

The Constitutional Council relied on Article 14 of Decree No. 59-701 of 6 June 1959, which provides: "The duration of the parcel inquiry cannot be less than fifteen times twenty-four hours." In other words, the legislature intended to guarantee a minimum period of 15 calendar days (including weekends and public holidays).

The judges considered that this period is a substantive formality (i.e., an essential condition of the procedure). Failure to comply renders the inquiry and the prefectural order void. It does not matter that the public utility inquiry lasted longer: the parcel inquiry has its own minimum duration.

Note, however, that this decision is not a reversal but a confirmation of an existing rule. The Constitutional Council simply reiterated that the decree binds everyone. Since then, this case law has been constant: any order setting a duration of less than 15 days is illegal.

What This Means for You — Practically

For owners: if you receive a parcel inquiry notice with a duration of less than 15 days, you can challenge the prefectural order before the administrative court. For example, in Menton, a road bypass project could be delayed if the prefect forgets this deadline.

For tenants: even if you are not the owner, you can also be expropriated if you occupy the dwelling. You have the right to consult the file for the entire duration of the inquiry. Check the number of days: 15 minimum.

For real estate professionals (developers, notaries): if you are assisting with a development project, ensure that the parcel inquiry complies with the legal deadline. A mistake could block the project for months.

What few people know: the 1978 case law is still in force. Even though the Expropriation Code has been reformed, the 15-day principle has been taken up in current Article R. 131-6.

Four Tips to Avoid This Type of Dispute

• Check the duration of the inquiry as soon as you receive the notice. Count calendar days (Monday to Sunday). If it is less than 15, alert your lawyer.
• Consult the file at the town hall for the entire duration. Take photos of the documents. If the file is incomplete, note it.
• Submit your observations in writing, with acknowledgement of receipt. Even if the deadline is short, assert your rights. An observation can lead to the annulment of the inquiry.
• Do not wait until the end of the inquiry to act. If you notice a defect (insufficient duration, lack of publication), apply to the administrative court for interim measures (urgent procedure).

Further Reading: Related Case Law and Developments

Before 1978, some courts allowed durations of less than 15 days if the public utility inquiry was long. The Constitutional Council put an end to that practice. Since then, the rule is clear.

Another important decision: in 2011, the Council of State ruled that the 15-day period applies even if the inquiry is opened during holiday periods (CE, 15 June 2011, No. 340285). Local authorities must therefore plan periods when owners are available.

The trend of the courts is to protect owners' rights. Any breach of a substantive formality (such as duration) leads to the annulment of the inquiry. undefined, I have come across cases where communes had to restart the entire procedure for a simple oversight on the deadline.

Summary and Next Steps

FAQ:

• What is the minimum duration of a parcel inquiry? 15 calendar days (15 times 24 hours).
• What if the inquiry lasts less than 15 days? Challenge the prefectural order before the administrative court within two months.
• Can I request an extension of the inquiry? No, but you can request its annulment if the deadline is insufficient.
• Does this rule apply to public utility inquiries? No, only to parcel inquiries. The public utility inquiry has its own rules.
• What is the cost of an appeal? Legal fees vary, but a quick consultation (€45 with Maître Zakine) can avoid costly proceedings.

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