Demolition permits with Claude: describe what is removed and retained
French demolition permits: NOT universal (council deliberation or protected sector), the real trigger situations and the CERFA 13405*15.
By Educasium
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An owner wants to demolish a run-down outbuilding in their garden, keeping the shared wall that separates it from the neighbouring plot. Their architect wonders whether a demolition permit is needed: the house is not listed, the municipality has never mentioned this requirement in previous applications, but the doubt persists. A generic template found online states that "a demolition permit is mandatory for any demolition" — a claim that, under French law, is inaccurate.
A permis de démolir (demolition permit) is not a universal formality applying to every demolition: it is an authorization required only in specific situations, defined by the Code de l'urbanisme. Many owners, and some document templates, wrongly assume it applies everywhere and automatically, which leads either to unnecessary steps or, conversely, to overlooking an authorization genuinely required in a protected sector.
This article details the precise situations in which a demolition permit is required, the applicable instruction timelines, the current CERFA form, and the method for preparing the file's supporting documents without ever confusing a written description with a technical diagnosis.
Summary
- A demolition permit is not a universal requirement
- The situations that actually trigger a demolition permit
- The instruction timeline and the current CERFA form
- Preparing the file step by step
- What a description never replaces
- What we observe among independent architects
- Training to make demolition applications more reliable
- Frequently asked questions
A demolition permit is not a universal requirement
Contrary to a widespread belief, demolishing a building is not systematically subject to authorization in France. The general regime, set by the Code de l'urbanisme, only makes demolition subject to a permit in identified cases, outside of which it may be carried out without this specific planning authorization — subject, of course, to safety, neighbourhood and, where relevant, labour-law rules applicable to the site itself.
Why this point must be checked project by project
Whether authorization is needed depends on the construction's precise location and on a decision specific to each municipality, which rules out any generalization from an earlier application, even one handled recently in the same municipality for a different type of project. A document-generation tool knows neither the sector's classification nor any council deliberation: it can only confirm whether authorization is needed if these elements are supplied to it after being checked.
What a demolition carried out without the required authorization risks
When a demolition permit is in fact required — because the municipality has instituted it or because the plot lies in a protected sector — and demolition begins without it, the works are irregular under planning law, with whatever consequences that may carry for a later reconstruction project or for reselling the property. That is one more reason to check this point before work starts, rather than assuming, from the absence of a requirement in a neighbouring application, that no authorization is needed here.
The situations that actually trigger a demolition permit
A demolition permit is required, according to Service Public, in the following situations.
| Situation | Demolition permit required |
|---|---|
| Municipality where the council has instituted the demolition permit by deliberation | Yes |
| Building located in a remarkable heritage site, in the surroundings of a historic monument, or listed as a historic monument | Yes |
| Building in a classified or listed site, a nature reserve, or the core of a national park | Yes |
| Building within the perimeter of a property-restoration operation | Yes |
| Any other situation, outside a council deliberation or protected sector | No, subject to a specific local rule to be checked |
This list is not the same from one municipality to the next: the very same outbuilding, with no particular heritage interest, may require a demolition permit in a municipality that has instituted this requirement by deliberation, and require none in the neighbouring municipality that has not. It is this local deliberation — or its absence — that must be checked first, before reasoning solely on the nature or age of the building concerned.
The instruction timeline and the current CERFA form
The instruction timeline for a demolition permit varies according to whether the demolition stands alone or is combined with a construction project, and according to whether the plot lies in a protected sector.
| Situation | Instruction timeline |
|---|---|
| Demolition alone, outside a protected sector | 2 months |
| Demolition alone, in a protected sector | 3 months |
| Demolition combined with a construction or development project | 3 to 4 months depending on the nature of the combined project and the sector |
At the time this article was checked, the CERFA form applicable to a demolition-permit application carries reference 13405*15. Like any planning form, this reference must be verified on service-public.gouv.fr on the filing date: a reviewing authority may reject an application filed with an earlier version.
Preparing the file step by step
Step 1: Precisely identify the demolition perimeter. The description must distinguish the building concerned, the exact part removed where demolition is partial, and the elements retained — a shared wall, a façade, an outbuilding unaffected by the works.
Step 2: Check whether authorization is needed with the town hall. This check covers both any deliberation instituting the demolition permit in the municipality, and any heritage or environmental classification of the plot.
Step 3: Document the existing state with referenced photos. Each photo must carry a reference consistent with the written description, so the reviewing authority can locate without ambiguity what the application concerns.
Step 4: Clarify the relationship with any reconstruction project. When demolition precedes a new project on the same plot, the two processes must be coordinated with the competent service, without assuming that one excuses the other: an obtained demolition permit does not prejudge the outcome of the building permit filed for the following project, and vice versa.
Step 5: File the complete application and keep proof of filing. It is that date which starts the instruction timeline applicable to the situation identified in step 2.
What a description never replaces
A text prepared with AI assistance can help structure the description of the demolition perimeter and the list of documents to gather, but it never amounts to a materials diagnosis, a stability study, or a method of executing the demolition works. Those belong to separate technical professionals, engaged according to the building's nature and the risks identified — the presence of materials requiring a pre-works diagnosis, a load-bearing wall shared with a neighbouring building, proximity to a fragile structure. Describing an isolated outbuilding as a "total demolition" applied to the whole plot, when only that outbuilding is concerned, introduces a confusion that must be corrected before filing, not after a remark from the reviewing authority.
What we observe among independent architects
In our exchanges with independent architects about their demolition applications, the difficulty is almost never describing what disappears: that is a familiar exercise. What costs time is checking, for each municipality and each plot, whether a local deliberation has instituted the demolition permit or whether a heritage classification applies — information that is not always easy to find quickly. That is an administrative-verification task, not a doubt about the technical description — and it is exactly what a well-structured checklist organizes, without ever excusing the architect from confirming this specific point with the town hall before every filing.
Training to make demolition applications more reliable
A checklist template is not enough if the need for authorization is not re-checked municipality by municipality. For an architect practising as a self-employed professional (NAF code 7111Z in France), the FIFPL fund covers part of the cost of Qualiopi-certified training under 2026 criteria set at €300 per day and €900 per year, with e-learning capped at 50% of the daily rate. This funding must be arranged before training starts, not after.
Frequently asked questions
Is a demolition permit always required to demolish a building?
No: it is required only in specific situations — a municipality that has instituted the demolition permit by deliberation, a protected heritage or environmental sector, or the perimeter of a property-restoration operation. Outside these cases, demolition can in principle be carried out without this specific planning authorization, subject to the other rules applicable to the site. This list of situations must be checked before every project, never assumed from memory or from a precedent handled in a different municipality.
How can I find out whether my municipality has instituted the demolition permit?
This information is obtained from the town hall's planning department, which can confirm whether a council deliberation to that effect exists. This check must be redone for each municipality concerned, without assuming that a rule observed elsewhere applies in the same way locally. This step generally takes little time and avoids starting a demolition without authorization where the municipality genuinely requires one.
Does demolishing a secondary outbuilding follow the same rules as a total demolition?
The authorization regime depends on the same criteria — council deliberation, protected sector — whatever the scale of the demolition, but the application's description must precisely distinguish what is demolished from what is retained. Describing a partial demolition as total, or the reverse, exposes the application to a request for clarification from the reviewing authority. That distinction must appear both in the written description and in the referenced photos, so no ambiguity remains about the works' actual scope.
Does a demolition permit exempt from a technical diagnosis before works?
No: the demolition permit is a planning authorization, distinct from the technical diagnoses that may be required before works depending on the building's nature, particularly where certain materials are present or where a structure is shared with a neighbouring building. Those diagnoses are the responsibility of specialized professionals, independent of the town hall's review of the permit. The two processes follow separate timelines: obtaining the permit neither speeds up nor replaces carrying out the required diagnoses before demolition works actually begin.
Can a demolition permit and a building permit for the following project be filed at the same time?
Yes, this is a common situation when demolition prepares a new project on the same plot, and the two processes are then coordinated by the reviewing authority, with instruction timelines often adjusted accordingly. This coordination must be checked in advance with the town hall rather than assumed to be automatic. A demolition permit obtained before the associated building permit is decided does not authorize starting demolition until that coordination has been clarified with the reviewing authority.
A reliable demolition application rests on three elements that do not change from one project to the next: a check of the need for authorization specific to the municipality and the plot, a description that precisely distinguishes what disappears from what remains, and photos referenced consistently with that description. Once that foundation is in place, it is exactly what the demolition-file generator organizes, never substituting for a technical diagnosis or for the competent service's review.
When demolition prepares a new project, our method for organizing a building-permit file details the documents expected for the construction that follows.
Training 100% fundable via OPCO/FIFPL. Qualiopi-certified programme. To structure your planning applications and contractual documents with AI as part of our AI for architectural management training, contact Educasium and specify your status (employee, self-employed, business owner) and your goal.