Demolition permit: the authorisation that determines the timetable of a major restructuring

The acquisition of a building intended for a major restructuring is negotiated on a timetable assumption: date of vacant possession of the site, date of filing, date of clearance of appeals, date works start. In most financial models, the demolition permit (permis de démolir) is treated as a subset of the building permit (permis de construire), obtained at the same time, cleared at the same time, and without litigation of its own. This is a costly approximation: in a remarkable heritage site (site patrimonial remarquable) or in the vicinity of a historic monument, authorisation to demolish is subject to its own ground for refusal, to a regime of binding opinion and to a specific exposure to litigation, precisely because demolition is irreversible. This guide deals with the real scope of the demolition permit, partial demolition, the choice between a stand-alone permit and a building permit that also authorises demolition, the regime for third-party appeals and the extension of the permit, in order to identify what must be secured before committing to a price and a reverse schedule.

The real scope: two entry points, one municipal, the other heritage-related

The principle is found in Article L. 421-3 of the French Town Planning Code: the demolition of existing buildings must be preceded by the issue of a demolition permit where the building is subject to a particular protection defined by decree of the Conseil d'État, or is located in a municipality or part of a municipality where the municipal council has decided to introduce this permit.

The first entry point is therefore purely local. Article R. 421-26 makes subject to a demolition permit works whose purpose is to demolish or render unusable all or part of a building located in a municipality or part of a municipality where the municipal council has introduced this regime. A large number of dense municipalities in the Île-de-France region, Paris first among them, have used this option over the whole of their territory. The check is trivial but it is often made too late: it requires obtaining the resolution in force, and not relying on the zoning of the local urban planning scheme (plan local d'urbanisme, PLU) alone.

The second entry point is heritage-related and applies independently of any resolution. Article R. 421-28 makes subject to a demolition permit works whose purpose is to demolish or render unusable all or part of a building located within the perimeter of a remarkable heritage site classified under Article L. 631-1 of the French Heritage Code, in the vicinity of historic monuments within the meaning of Article L. 621-30 of the same Code, listed as a historic monument or adjoining a classified building, located in a site that is listed, classified or in the process of classification under Articles L. 341-1 and L. 341-2 of the French Environment Code, or identified as to be protected by the local urban planning scheme under Articles L. 151-19 or L. 151-23.

This last case deserves particular attention in operations in Paris and the inner suburbs. Protection under Article L. 151-19, often evidenced by an annexed list and a graphic marking, is enough to bring the building within the regime of demolition in a protected area, including where the building has no apparent architectural quality. Planning due diligence must therefore cover the annexes to the planning document, not just the zone regulations.

The exemptions are narrow

Article R. 421-29 excludes the demolition permit in limited cases: demolitions covered by national defence secrecy, demolitions carried out under the French Construction and Housing Code on a building at risk of collapse or on an unfit building, demolitions carried out under a court decision that has become final, demolitions of buildings subject to a setback easement in execution of an alignment plan, and demolitions of electricity lines or pipelines.

An investor acquiring a dilapidated asset sometimes imagines it can place itself under the regime for policing of buildings at risk of collapse in order to speed things up. The exemption presupposes an order made under Articles L. 511-1 et seq. of the French Construction and Housing Code and a demolition carried out under that administrative police power. It cannot be ordered up and cannot be negotiated: it is not a timetable lever.

Partial demolition, gutting, façade retention: the scope that is underestimated

The texts do not cover only the disappearance of the building. Articles R. 421-26 and R. 421-28 cover works whose purpose is to demolish or render unusable all or part of a building. The test is twofold: physical destruction of part of the structure, but also the resulting loss of use.

This wording catches a good share of major restructurings that are not presented as demolitions. Removing floors to create a reception volume, taking out load-bearing cross walls, completely hollowing out a building behind its retained façade, removing a stairwell or a wing in the middle of the block, all fall within the demolition permit as soon as the building is within scope. Façade retention (façadisme), a common operation in a protected area, is the clearest illustration: keeping the façade does not remove the need to authorise demolition of what lies behind it.

This characterisation combines with, without being merged into, the regime for works on existing buildings. Article R. 421-14 makes subject to a building permit works that have the effect of altering the load-bearing structure or the façade of a building where they are accompanied by a change of use. An operation converting offices into housing, or housing into a managed residence, therefore frequently combines two characterisations: alteration of structure subject to a building permit, and partial demolition subject to a demolition permit. The classic error is to file only under the building heading and to discover during the examination, or worse after issue, that the authorisation does not cover the demolitions provided for in the works contract.

The practical consequence is contractual. The descriptive notice given to the architect and the pricing of the structural works contractor must be tested against the planning characterisation before filing. A demolition carried out without a permit exposes the owner to a stop on the works, to the criminal penalty in Article L. 480-4 of the French Town Planning Code and, in a protected building, to the impossibility of regularisation.

Building permit that also authorises demolition or stand-alone demolition permit: a trade-off on exposure

Article L. 451-1 of the French Town Planning Code opens an option: where demolition is necessary for a construction or development operation, the application for a building or development permit may cover both the demolition and the construction, and the permit issued then authorises the demolition. Article R. 431-21 draws the procedural consequence: where the proposed works require the demolition of buildings subject to a demolition permit, the building permit application must either be accompanied by proof that the demolition permit application has been filed, or cover both the demolition and the construction.

The building permit that also authorises demolition has two operational advantages: a single file, a single display of notice, a single time limit for third-party appeals. It also has a structural drawback: the operation rests on a single act. An appeal directed against the construction element freezes the whole, including the demolition, and the fragility of the new project contaminates the authorisation to demolish.

The stand-alone demolition permit reverses the exposure. It can be filed and examined earlier, with an ordinary examination period of two months under Article R. 423-23, against three months for the building permit, and it can therefore be cleared before the new project has stabilised. It makes it possible to clear and clean the land, which has a direct effect on security, insurance and property tax costs during the holding period. The risk is symmetrical: demolishing without certainty of being able to rebuild creates a gap site (dent creuse) whose resale value is lower than that of the existing building.

In a protected area, this trade-off is rarely decided in favour of independence. The competent authority and the Architect of the Bâtiments de France assess whether demolition is appropriate by reference to what replaces it. Filing a demolition application alone, without a documented replacement project, exposes the applicant to a refusal based on harm to the built heritage and the urban landscape. Conversely, in a logistics, warehouse or office operation in an unprotected business zone, the stand-alone demolition permit is often the best tool for compressing the timetable.

The ground for refusal specific to the demolition permit and the weight of the Architect of the Bâtiments de France

The demolition permit is not a bound authorisation. Article L. 421-6, in its second paragraph, gives it a ground for refusal of its own.

The demolition permit may be refused or granted only subject to compliance with special requirements if the proposed works are likely to compromise the protection or enhancement of built or unbuilt heritage, of districts, of monuments and of sites.

This wording gives the authority a wide margin of assessment, which goes beyond mere compliance with the rules on size or footprint in the local urban planning scheme. A building that is not individually protected may have its demolition refused on grounds of the coherence of a built frontage or an urban ensemble.

To this is added the regime of opinions. In the vicinity of a historic monument and in a remarkable heritage site, the authorisation is subject to the agreement of the Architect of the Bâtiments de France under Articles L. 621-32 and L. 632-1 of the French Heritage Code. Two consequences for the timetable must be built into the reverse schedule. First, the ordinary examination period is extended in the cases provided for in Articles R. 423-24 et seq., the extension having to be notified to the applicant within one month of filing. Second, the authority's silence does not always amount to a tacit permit: Article R. 424-2 provides, by exception to the principle laid down in Article R. 424-1, that failure to give an express decision amounts to refusal in several cases, in particular where the project concerns a building listed as a historic monument or where the Architect of the Bâtiments de France has given an unfavourable opinion. Building a timetable on the assumption of a tacit permit in a protected area is an error of method.

Good practice consists in obtaining a position from the departmental architecture and heritage unit (unité départementale de l'architecture et du patrimoine) before filing, on the basis of a historical study and a structural diagnosis showing either that the parts to be demolished have no heritage interest or that it is technically impossible to keep them. This informal review is not legally binding, but it determines the outcome more reliably than the regulatory file itself.

The prior obligations that shift the filing date

Three constraints outside the Town Planning Code bear on the date on which the file can be filed or the works started.

The diagnosis of products, equipment, materials and waste arising from demolition or significant renovation, known as the PEMD diagnosis, is governed by Articles L. 126-34 and R. 126-8 et seq. of the French Construction and Housing Code, arising from Decree No. 2021-821 of 25 June 2021, which came into application on 1 July 2023. It must be carried out before the demolition permit application is filed, or failing that before quotations for the works are accepted, and is the subject of a completion record form after completion. Its scope covers in particular buildings whose cumulative floor area exceeds a threshold set by regulation and those that have housed hazardous substances.

The pre-works asbestos survey, provided for by Article R. 4412-97 of the French Labour Code and its implementing orders, for its part conditions the tendering to contractors and the reliability of the asbestos-removal pricing. In a building from the 1960s to the 1990s, the gap between a desk-based pre-diagnosis and a full destructive survey is measured on the most volatile line of the gutting budget.

Finally, the most underestimated constraint is ecological. The presence of protected species, bats in the roof space, swifts or swallows on the façade, requires a derogation to be obtained under Article L. 411-2 of the French Environment Code. This derogation presupposes a file examined by State services, where appropriate a consultation of the National Council for the Protection of Nature (Conseil national de la protection de la nature), and imposes seasonal windows for intervention. In an urban demolition operation, it is frequently this point, and not the permit itself, that delays the start by several months.

Third-party appeals: the variable that governs price and timetable

Litigation over the demolition permit follows the ordinary law on planning authorisations, with one peculiarity: the subject matter of the dispute disappears when the permit is carried out.

The time limit for an appeal runs, under Article R. 600-2 of the French Town Planning Code, for two months from the first day of a continuous period of two months of display on the site. Proof of display, by bailiff (commissaire de justice) reports at the beginning, middle and end of the period, is the first safeguard to demand. The author of a third-party appeal must, on pain of inadmissibility, notify it to the author of the decision and to its beneficiary within fifteen clear days of filing, by registered letter with acknowledgement of receipt, under Article R. 600-1. The standing of an individual claimant is governed by Article L. 600-1-2, which requires direct harm to the conditions of occupation, use or enjoyment of the claimant's property, assessed by reference to the date on which the application was displayed at the town hall under Article L. 600-1-3. Associations are admissible, under Article L. 600-1-1, only if their articles of association were filed at least one year before that display.

Two other time limits must appear in the reverse schedule. Administrative withdrawal: Article L. 424-5 provides that the permit, tacit or express, may be withdrawn only if it is unlawful and within three months of the date of the decision. The legality review: the prefect has two months from transmission of the act to refer it to the administrative tribunal. A permit that is cleared of third-party appeals alone but not of the withdrawal period is not a final permit.

Why the interim suspension application is the opponents' main weapon

A demolition that has been carried out cannot be repaired. Later annulment of the permit opens a claim for damages; it does not restore the building. Neighbours, heritage defence associations and sometimes the neighbouring municipality draw the logical conclusion: they accompany their appeal with an application for suspension under Article L. 521-1 of the French Code of Administrative Justice, arguing that urgency is established by the irreversibility of the operation.

The legislature has framed this option. Article L. 600-3 of the French Town Planning Code limits an interim suspension application (référé-suspension) to the period before expiry of the time limit for crystallisation of grounds, set by Article R. 600-5 at two months after the first statement of defence is communicated to the parties. In other words, the window of risk closes, but it falls exactly when the operator would want to launch the gutting.

Two other mechanisms deserve to be built into the procedural strategy. Article L. 600-5-1 allows the judge, where a defect can be regularised, to stay the proceedings and set a time limit for producing a regularising measure, which turns an annulment into a delay. Article R. 811-1-1 of the French Code of Administrative Justice removes the appeal, in favour of jurisdiction of the administrative tribunal at first and last instance, for appeals against building or demolition permits for buildings mainly used for housing located in high-demand areas, a mechanism extended several times by decree. In those areas, litigation risk is therefore measured in months before the tribunal and then, where applicable, on a further appeal on points of law, and not in years of two-tier jurisdiction. Regularisable defects, the choice of regularising act and the timing of that decision are set out in our article on the amending permit and regularisation during proceedings.

Finally, the certificate of no appeal (attestation de non-recours) issued by the registry of the administrative court, provided for in Article R. 600-7 of the French Town Planning Code, is the document that allows a condition precedent of clearance to be lifted contractually. It must be expressly referred to in the preliminary agreement, failing which lifting the condition gives rise to dispute.

Validity, suspension and extension of the permit

The demolition permit lapses if the works are not started within three years of notification or of the date on which the tacit decision arose, or if, after that period, the works are interrupted for more than one year, under Article R. 424-17.

That period can be extended. Article R. 424-21 allows an extension of the permit for one year, renewable once, provided that the planning requirements and administrative easements of every kind have not changed unfavourably. The application must be sent to the town hall in two copies at least two months before expiry of the validity period, under Article R. 424-22, and the extension is granted if no decision has been notified within two months of receipt of the application, under Article R. 424-23. The maximum life of a permit that is not implemented is therefore five years, subject to the stability of the applicable law. The notion of commencement of works and the conditions of extension are examined in our article on the validity period and on the extension of a building permit.

This reservation is the sensitive point in Paris operations. A change in the planning document strengthening the heritage protection of a building, or introducing new requirements on conservation of the existing fabric, removes the right to an extension. A permit obtained and then left dormant while a revision of the local urban planning scheme is under way is a depreciating asset.

Conversely, Article R. 424-19 protects the holder against the effect of litigation: in the event of an appeal to the administrative court against the permit, or of proceedings before the civil court based on Article L. 480-13, the validity period is suspended until an irrevocable judicial decision is given. The time taken by the proceedings does not use up the validity period, which should be pointed out when a seller tries to renegotiate on the ground that the permit is close to lapsing.

Obtaining vacant possession of the site: the other condition of the timetable

The administrative authorisation is worth nothing if the building is occupied. Three legal situations are encountered.

Where there are commercial leases (baux commerciaux), the landlord has the option, provided for in Article L. 145-4 of the French Commercial Code, of giving notice at the end of a three-year period in particular in order to build, rebuild or raise the existing building, or to demolish it as part of an urban renewal project. Article L. 145-18 provides for refusal of renewal for reconstruction with an offer of replacement premises, and Article L. 145-17, II, excludes eviction compensation (indemnité d'éviction) where the building is to be wholly or partly demolished as being declared unfit for habitation or where it can no longer be occupied safely because of its condition. Outside those cases, eviction compensation is due and must appear in the operation's balance sheet in the same way as the cost of the works.

In co-ownership (copropriété), a demolition affecting the common parts or removing lots requires a decision of the general meeting and, depending on its scale, an amendment to the description of division (état descriptif de division) and to the co-ownership rules (règlement de copropriété), the majority conditions for which are governed by Law No. 65-557 of 10 July 1965. Acquiring lots with a view to demolishing them without having checked the configuration of majorities within the co-ownership association amounts to buying a project whose execution depends on third parties.

Finally, where there are occupiers without right or title, the time needed to obtain and enforce an eviction order is a timetable parameter in its own right, to be measured independently of the examination of the permit.

What the investor must secure before committing to a price and a timetable

The demolition permit is rarely the subject of an acquisition negotiation, and that is precisely what makes it a blocking risk. Three reflexes separate a controlled operation from one that is merely endured.

The first is a characterisation audit before signing the preliminary agreement: municipal resolution introducing the demolition permit, perimeter of the remarkable heritage site or of the vicinity of a historic monument, protections under Article L. 151-19 of the French Town Planning Code, and testing of the works description against the notion of partial demolition. This work is done on documents, in a few days, and conditions the characterisation of the whole operation.

The second is the drafting of the conditions precedent (conditions suspensives). A condition of obtaining the permit cleared of any third-party appeal, any withdrawal and any prefectoral referral (déféré préfectoral), expressly referring to the certificate under Article R. 600-7, with a realistic time limit that allows for the duration of any interim suspension application, and a mechanism for extending the preliminary agreement against an additional immobilisation indemnity. An additional price indexed to final obtaining of the authorisation makes it possible, in the most exposed cases, to share the risk rather than have it borne entirely by the buyer. The drafting of this condition and the chronology of a secured acquisition are the subject of our article on land acquisition subject to a building permit cleared of appeals.

The third is anticipating the related obligations: PEMD diagnosis before filing, asbestos survey before tendering to contractors, and above all an ecological pre-diagnosis from the feasibility studies onwards, because the protected-species derogation is the least compressible constraint in the timetable.

Before signing a binding offer on an asset to be heavily restructured, have the authorisation regime applicable to the planned demolitions, and the choice between a stand-alone demolition permit and a building permit that also authorises demolition, characterised in writing, and before any price negotiation. This note of a few pages is what turns a reverse-schedule assumption into a commitment that can be kept.

Frequently asked questions

Is a demolition permit required for interior demolition without altering the façade? Yes, where the building falls within Articles R. 421-26 or R. 421-28 of the French Town Planning Code. These texts cover works whose purpose is to demolish or render unusable all or part of a building, which includes removing floors, load-bearing walls or stairwells. A complete gutting behind a retained façade falls within the demolition permit, and frequently combines with a building permit under Article R. 421-14 where the load-bearing structures are altered and there is a change of use.

What is the examination period for a demolition permit and can a tacit permit arise? The ordinary period is two months under Article R. 423-23 of the French Town Planning Code. It is extended in the cases provided for in Articles R. 423-24 et seq., in particular where the agreement of the Architect of the Bâtiments de France is required, the extension having to be notified within one month of filing. A tacit permit can arise under Article R. 424-1, but Article R. 424-2 conversely provides for implied refusal in several cases, in particular in the event of an unfavourable opinion from the Architect of the Bâtiments de France or where the building is listed as a historic monument.

Should a building permit that also authorises demolition be preferred, or two separate authorisations? Article L. 451-1 of the French Town Planning Code opens the option of a single permit, which simplifies the procedure but concentrates litigation risk on a single act. The stand-alone demolition permit can be obtained and cleared earlier, which makes it possible to clear the land before the new project stabilises, at the price of the risk of a gap site if the construction is ultimately not authorised. In a protected area, the authority assesses whether demolition is appropriate by reference to the replacement project, which in practice leads to a preference for a joint application.

How long does a demolition permit remain valid and how can it be extended? The permit lapses if the works are not started within three years, or if they are interrupted for more than one year, under Article R. 424-17. Article R. 424-21 allows two extensions of one year each, provided that the planning rules and easements have not changed unfavourably. The application must be filed at least two months before the validity expires and the extension is granted if no reply is given within two months. In the event of an appeal, Article R. 424-19 suspends the validity period until an irrevocable judicial decision.

Can a third party obtain suspension of a demolition permit before the works begin? Yes, through the interim suspension application under Article L. 521-1 of the French Code of Administrative Justice, urgency being classically established by the irreversible nature of demolition. Article L. 600-3 of the French Town Planning Code nevertheless limits this option to the period before expiry of the time limit for crystallisation of grounds, set at two months after the first statement of defence is communicated by Article R. 600-5. That is why a works timetable must never be built on expiry of the appeal period alone.

How can it be proved that a demolition permit is cleared of any appeal? Display on the site must be recorded by a bailiff on three occasions to establish continuity of the two-month period required by Article R. 600-2. The absence of appeal is then shown by the certificate issued by the registry of the administrative court under Article R. 600-7 of the French Town Planning Code. To this must be added expiry of the three-month withdrawal period provided for in Article L. 424-5 and of the period for prefectoral referral, failing which the permit is not final.

Does demolition of a building occupied by a commercial tenant give rise to eviction compensation? In principle yes. Article L. 145-4 of the French Commercial Code allows the landlord to give notice at each three-year break in order to build, rebuild, raise or demolish as part of an urban renewal project, but eviction compensation remains due under the ordinary rules of Articles L. 145-14 et seq. Article L. 145-17, II, excludes it only in narrow cases, in particular declared unfitness for habitation or the impossibility of occupying the building safely. This compensation must be provisioned from the acquisition balance sheet, because it precedes execution of the permit.