Expropriation lawyer in Paris: defend the value of your property.

Because the Code requires it. Article R. 311-9 of the Expropriation Code (Code de l'expropriation) provides that the parties must be represented by a lawyer from the moment the judge is seized, while the State, local authorities and their public bodies may be assisted or represented by an official. The same requirement applies before the court of appeal (Article R. 311-27). The owner therefore cannot file their statement alone, nor plead alone at the hearing that follows the site visit.

The value of representation goes beyond formality. The procedure is written and confined to short deadlines: one month to respond to the offer, six weeks to respond to the statement of case, one month to appeal. At the hearing, the parties may develop only what is in their statements (Article R. 311-20). Compensation omitted from the written submissions cannot be added orally on the day of the visit.

The firm prefers to act before the judge is seized, when the offer arrives. That is the stage at which the reference date, the valuation method and the list of compensation claimed are fixed. First-instance costs are borne by the expropriating authority alone (Article L. 312-1), which does not necessarily cover the fees of the owner's lawyer, set by agreement.

The offer letter must distinguish the principal compensation, any offers in kind and each ancillary item; it invites you to state in writing, within one month of service, either your acceptance or the detailed amount of your claims (Article R. 311-5). That period is not a mere courtesy. Your written response becomes the reference the judge will use if you then file no statement in reply (Article R. 311-22).

A good response is therefore not limited to refusing. It quantifies the principal compensation from comparable sales, then each ancillary item: reinvestment costs, depreciation of the remainder in the case of a partial taking, loss of rent, removal or relocation costs. Within the same period, any request for the whole property to be taken must be addressed to the judge, on the conditions that apply to built property and to bare land (Article L. 242-1).

It is preferable to use that month to gather the acquisition deed, surface areas, leases, diagnostic reports and recent transfers in the area. The firm also checks that the offer rests on the right reference date and does not rely on an inapplicable tax ceiling. If the month expires without agreement, the expropriating authority may refer the matter to the judge; you can do so yourself only from the expropriation order onwards (Article L. 311-6).

The judge then rules only on the written material available, and that material comes from the expropriating authority. Article R. 311-22 provides that an expropriated party who lets six weeks pass without serving a statement in reply remains bound by their response to the offers; if they did not even respond to the offers, the judge sets the compensation on the basis of the material in the file.

The Paris Court of Appeal drew a severe consequence from this for a defaulting owner whose property was being expropriated by SOREQA. The first-instance judge had set a higher value than the offer, partly following the Government Commissioner. The court overturned that decision and held that "the judge cannot set the amount of expropriation compensation at a figure higher than the expropriating authority's offers" (our translation) where the expropriated party had made no claim (CA Paris, pôle 4, ch. 7, 15 February 2024, No. 21/21736). The principal compensation was reduced to the offer.

The result applies even where the Government Commissioner's valuation is more favourable to the owner. Silence is therefore never neutral: it freezes the file at the level of the offer. If a deadline has already been missed, the firm examines what remains possible, in particular before the court of appeal, where an ancillary claim may still be made in certain conditions.

In practice, most often by comparison with sales of similar properties. The choice of method is a matter for the trial judges' sovereign assessment, as recalled in Cass. 3e civ., opinion, 16 November 2023, No. 23-70.011, but the discussion turns on verifiable references. The Court of Cassation holds that "the judge assesses at their sole discretion the points of comparison drawn from the selected transfer deeds on which each party relies to support the valuation it proposes" (our translation), provided that the parties have been able to debate them (Cass. 3e civ., 19 September 2024, No. 23-19.783).

The same judgment accepts sales taken from publicly accessible databases, without production of the deed, where they contain the information required by the Tax Procedure Code (Livre des procédures fiscales) and their publication references. For a Paris owner, this means that sales of the building, the street or the neighbourhood can usefully be produced, provided they are chosen to be comparable in surface area, floor, condition and occupation status.

The discussion then turns on the relevance of each reference. The Court of Cassation set aside a judgment that had adopted the first-instance judge's references "without answering the expropriating authority's submissions challenging the relevance of those points of comparison" (our translation) (Cass. 3e civ., 10 September 2026, No. 25-11.067). That decision benefited the expropriating authority: it recalls that the judge must answer submissions challenging the relevance of references, which gives an owner every reason to make a precise critique of the developer's references.

Two dates coexist. Value is measured on the day the first-instance judge rules, but the use taken into account is the one that existed at an earlier date, called the reference date, in principle one year before the opening of the public inquiry (Article L. 322-2). For projects subject to public debate, notably Grand Paris projects, that date may be the one on which the debate file was made available; in a ZAC (development zone), the date of the act creating the zone, subject to conditions.

The same article neutralises variations in value caused by the announcement of the works, by the prospect of a change in planning rules or by recent public works in the urban area. It takes into account easements and administrative restrictions that durably affect the property, unless the expropriating authority acted with fraudulent intent.

The lasting nature of the constraint is decisive. For building land, the Court of Cassation held that "only easements and administrative restrictions of a permanent nature must be taken into account in valuing building land" (our translation), and refused to deduct a temporary waiting perimeter (Cass. 3e civ., 28 September 2023, No. 22-21.012). The physical makeup of the property is assessed at the date of the transfer order (Article L. 322-1).

Yes, it is one of the least known pitfalls. Article L. 322-9 of the Expropriation Code (Code de l'expropriation) provides that the principal compensation cannot exceed the tax authority's estimate where, in the five years before the transfer, the property was the subject of a transfer without consideration or of a sale finally valued by the tax authority, or declared at a lower amount than that estimate.

A cautious inheritance declaration, a gift valued low or an old purchase price can therefore resurface in the expropriation procedure. The rule is not absolute, however. The text allows the owner to show that the tax authority's estimate does not correctly reflect the movement of the property market. It also requires account to be taken of justified changes to the property since the transfer: works, a change in condition, in legal status or in occupation.

The terms of this uplift are set out in Article R. 322-2: where works have added value to the property, the transfer value is increased by the cost of the works or, if higher, by the amount of that added value, and proof may be made by any means. Article R. 322-3 deals with the case of a partial expropriation. The firm therefore starts with the five-year history of the property before discussing the price per square metre.

Yes, and negotiation remains open at every stage. Before the judge is seized, the response to the offer is the basis for discussion. Once the judge is seized, the judge records at the hearing any agreements reached between the expropriating authority and the expropriated party (Article R. 311-20). An agreement need not be reached at the price of the initial offer: it is built from a quantified claim and documents.

The form of the agreement matters. An amicable transfer agreed after the declaration of public utility has the same effects of extinguishing rights as the expropriation order (Article L. 222-2). The deed must distinguish the principal compensation from the ancillary compensation, stating their bases (Article L. 321-3). Where the agreement is recorded in a published administrative act, it lapses if the final deed of transfer is not published within six months (Article L. 323-2).

An agreement also has an effect beyond the file. The judge takes into account the prices agreed with the other owners affected by the project, and must refer to them where those agreements cover a sufficient share of owners and surface area (Article L. 322-8). The firm therefore checks the prices already accepted by neighbours, which may help or harm your claim.

The Government Commissioner takes part in the procedure for setting compensation alongside the parties. The Commissioner receives copies of the statements and documents, attends the site visit and may be heard at the hearing (Article R. 311-15 and Article R. 311-20). The Commissioner may be replaced by a departmental or regional director of public finances or by officials of the State property service, and may appeal (Article R. 311-24).

The Commissioner's conclusions carry weight in the decision, but they do not move the limits set by the parties. Article R. 311-22 only allows the judge to go below the offer if the Commissioner proposes a lower valuation than the expropriating authority. Conversely, a more favourable valuation does not benefit an owner who has claimed nothing.

The Court of Cassation recalled this by setting aside a court of appeal judgment that had adopted the Commissioner's valuation, "which was higher than that resulting from the expropriating authority's statement and the appellants' statement" (our translation) (Cass. 3e civ., 23 September 2020, No. 19-20.633). The decision, unfavourable to the owners, shows that their own written submissions set the ceiling of what they can obtain. The firm reads the Commissioner's conclusions as soon as they are communicated, to challenge the references or rely on those that support the claim.

The judge sets the date of the visit and of the hearing of the parties by order. The visit takes place within two months of that order, but after the six-week period allowed to the defendant to respond has expired (Article R. 311-14). The parties and the Government Commissioner are given at least fifteen days' notice, the visit takes place in their presence and minutes are drawn up (Article R. 311-15).

The public hearing follows the site visit; the judge states its place and time at the latest during the visit, and it may be held somewhere other than the court (Article R. 311-18). Where the valuation presents particular difficulties, the judge may appoint an expert by reasoned decision or be assisted by a notary during the visit (Article R. 322-1).

The visit is the moment when the real condition of the property is observed: quality of materials, natural light, recent works, defects or qualities that the offer may have misjudged. The owner is well advised to prepare a route, plans and supporting documents for works. If disagreement persists eight days after the visit, the judge rules (Article R. 311-21). Arguments made orally must stay within the limits of the statements.

The expropriating authority may value a let property at its occupied value, which is lower than vacant value. In the case decided by CA Paris, pôle 4, ch. 7, 15 February 2024, No. 21/21736, SOREQA's offer used €500 per square metre in occupied value, which the Government Commissioner put at €575 in vacant value. The discount is argued with documents: leases, rents, remaining term, possibility of giving notice to quit.

A landlord owner also loses income during the time needed to buy again and re-let. The Court of Cassation held that a claim for compensation for loss of rental income "is ancillary to the claim for principal compensation for dispossession" (our translation), so that it may be made for the first time on appeal (Cass. 3e civ., 9 April 2026, No. 24-15.296). That possibility does not remove the need to raise it at first instance where possible.

For an owner who lives in the property, the logic is different. The Court of Cassation indicated, in an opinion, that "the rehousing of the owner-occupier does not constitute a loss in value affecting the market value of the expropriated property" (our translation), but that accepted rehousing constitutes compensation in kind to be taken into account (Cass. 3e civ., opinion, 16 November 2023, No. 23-70.011). The offer of rehousing must moreover have been accepted before the compensation is set (Article R. 423-9).

There are two routes. If the rest of a building can no longer be used normally, or where a plot of bare land is reduced to a quarter of its area and to less than ten ares with no adjoining land, the owner may ask the judge for the whole property to be taken (Article L. 242-1). The request is made within one month of service of the offers (Article R. 311-5).

Where the remaining land is still usable but loses value, the owner may claim compensation for depreciation of the remainder. The Court of Cassation held that "compensation for depreciation of the remainder may be awarded whatever the nature of the expropriated property" (our translation), and set aside the judgment that had refused it on the ground that the plots were building land (Cass. 3e civ., 4 April 2019, No. 18-10.989).

The limit is the direct link with the dispossession. In Paris, the Court of Cassation set aside an award for the extra construction cost imposed by a RATP tunnel, on the ground that the court of appeal had ruled "by compensating loss resulting from the siting of the public work" (our translation) (Cass. 3e civ., 6 December 2018, No. 17-24.312). That loss falls under a different route from that of the expropriation judge. The distinction is prepared from the statement onwards.

The expropriation order transfers ownership, but the expropriating authority takes possession only once the compensation has been paid, or consigned where payment is obstructed or the owner refuses to receive it, or once an offer of replacement premises has been accepted or validated (Article L. 222-1). Occupants must then leave within one month of payment, consignment or acceptance or validation of that offer, a period that even the judge cannot alter (Article L. 231-1).

An owner who occupies residential or professional premises may, after the judge has been seized and the order made, if there is no obstacle to payment and the expropriating authority is not providing rehousing or relocation, obtain an advance of 50% of the offers, capped at half of the administrative estimate where the offers are higher (Article L. 323-3). If the compensation finally fixed is neither paid nor consigned within a year, the owner may ask for it to be fixed again (Article L. 323-4).

A registered mortgage entitles the expropriating authority to consign (Article R. 323-8). At the owner's request and before consignment, the expropriating authority may then pay an advance of up to three quarters of the difference between the compensation and the amount of the charges and ancillary items (Article R. 323-12). The Court of Cassation rejected a damages claim by an expropriated owner who sought the whole of the compensation despite the mortgage, "consignment of the compensation due to the expropriated party not being wrongful" (our translation) (Cass. 3e civ., 8 October 2026, No. 24-19.947). This unfavourable decision is a reminder to make the right request at the right time.

An appeal is made within one month of service of the judgment, by a declaration to the court registry, accompanied by a copy of the judgment (Article R. 311-24).

In the version in force since 1 October 2026, Article R. 311-26 requires the appellant, on pain of lapse raised by the court of its own motion, to serve their submissions on the lawyer of each other party, then to file a copy at the registry with proof of that service, within three months of the notice of appeal. The respondent has the same period, running from service of the appellant's submissions, on pain of inadmissibility, including for a cross-appeal. Documents are communicated at the same time as the submissions, and a party without a lawyer is served with the submissions no later than one month after those periods expire. The earlier version provided for filing at the registry followed by service by the registry.

The Court of Cassation held that "an appellant cannot make a new claim in a supplementary statement filed more than three months after the notice of appeal" (our translation) (Cass. 3e civ., 23 September 2020, No. 19-20.633). It has, however, approved the admission of later submissions that were purely in reply (Cass. 3e civ., 5 November 2020, No. 19-21.872). Both judgments were given under the earlier version of the text, which already set the three-month period. An appellant owner must therefore put all their claims in the submissions made within the three months, subject to submissions purely in reply and to new claims that follow the filing of an expert's report ordered by the court (Article R. 311-26).

Not always, and the file depends on the police measure in question. The estimated cost of the works required by a safety or health measure, served and not carried out within the time set, is deducted from the value of a built property, although the amount of compensation cannot be reduced to the value of the bare land (Article L. 322-7).

Where the building has been declared irremediably insanitary, a stricter regime may apply. The Court of Cassation set aside a judgment that had rejected the land recovery method, "when it had found that the building had been the subject of a prefectoral order declaring it irremediably insalubrious" (our translation) (Cass. 3e civ., 13 April 2023, No. 21-25.771). The decision, given under the texts then applicable, is unfavourable to the owner. Conversely, buildings in good condition cannot be treated as worthless: a court of appeal judgment was set aside for deducting their demolition cost "without noting that the buildings were without value" (our translation) (Cass. 3e civ., 5 November 2020, No. 19-21.872).

A loss event that predates the transfer does not extinguish the owner's right. The Court of Cassation approved compensation for the loss of a chance of receiving insurance money after a fire, the expropriation having interrupted the compensation procedure, that loss being "direct loss connected with the expropriation since it results from the transfer of ownership caused by it" (our translation) (Cass. 3e civ., 8 January 2026, No. 24-11.299).