Bought or rented a property in Spain with asbestos or without a certificate: what to claim

The case, in five lines

What is brought

In Catalonia, the remedies for lack of conformity under the Código civil de Cataluña, the Catalan Civil Code (arts. 621-37, 621-38 and 621-40 to 621-42): the certificate and removal at the seller's expense, a price reduction, termination if the lack of conformity is not minor, and damages in addition. Outside Catalonia, the claim under the warranty against hidden defects (arts. 1484 to 1490 of the Código Civil, the Spanish Civil Code), with fraud or breach of contract in the alternative. In a tenancy, requiring the landlord to keep the property in repair, or terminating the lease (arts. 21 and 27 of the Ley de Arrendamientos Urbanos, the Urban Leases Act or LAU).

Before which court

The sección civil of the Tribunal de Instancia (the civil section of the first-instance court): the one for the seller's domicile in a sale and the one for the place where the property is located in a tenancy; in a sale, the juicio verbal (the shorter form of civil proceedings) up to 15,000 euros and the juicio ordinario (ordinary proceedings) above that. Beforehand, the negotiation attempt under article 5 of Ley Orgánica 1/2025 (the Organic Act on efficiency measures in the public justice service) or, if you are a consumer dealing with a business, the prior complaint under its seventh additional provision. Appeal, where available, to the Audiencia Provincial (the provincial appeal court); appeals in cassation on Catalan civil law, to the Tribunal Superior de Justicia de Cataluña (the High Court of Justice of Catalonia).

Deadline

In Catalonia, three years from when you learn or could learn of the lack of conformity (art. 621-44.3 of the Código civil de Cataluña), if it becomes apparent within three years of handover (art. 621-23.1); the law does not say whether this is a limitation period (prescripción) or an expiry period (caducidad), and it is safest to treat it as an expiry period. Outside Catalonia, a six-month expiry period from handover (art. 1490 Código Civil); in the alternative, on grounds of fraud, four years from completion of the contract (art. 1301 Código Civil), and on grounds of breach of contract, five years (art. 1964.2 Código Civil). In a tenancy, repairs can be demanded for as long as the lease lasts. A formal request to negotiate interrupts the limitation period or suspends the expiry period (art. 7 Ley Orgánica 1/2025).

Who can bring it

The claim is brought by the buyer or tenant who signed; if there are several, they should all join in the claim. It is brought against the seller or landlord, who must deliver the certificate and is liable for what was handed over. The technician who signed an incorrect certificate is liable for his or her negligence. The property manager and the other related professionals must see to it that the certificate is delivered (art. 12.1.b of Ley 8/2026, the Catalan Act on the eradication of asbestos), but they do not guarantee it: they are only liable for their own harmful conduct, if it is proved.

Financial risk

If it is not proved that the material contains asbestos, that it was already there at handover and that you did not know of it and could not reasonably have known, the claim is dismissed and the loser-pays rule applies: whoever has all their claims rejected pays the other side's costs, unless the case raised serious doubts of fact or law. The asbestos survey with sampling and laboratory analysis has to be paid up front (market prices start at around 500 euros plus VAT for a flat). Seeking annulment or termination solely because the certificate is missing means losing with costs, and refusing the settlement attempt without good reason can count against you.

The Catalan law: what it requires from 3 October 2026 and what it does not

Ley 8/2026, de 2 de julio, de la erradicación del amianto (Catalonia's Act of 2 July 2026 on the eradication of asbestos) came into force on 3 October 2026. Its article 21.2 provides that the certificate of presence or absence of asbestos must be delivered when a property is sold or let, and article 5.d gives anyone who buys or rents the right to obtain it. It is a Catalan law: it only applies to property located in Catalonia. Outside Catalonia there is, as of 3 October 2026, no national or regional obligation to deliver an asbestos certificate. Nor is it retroactive: it governs sales and lettings signed from that day onwards.

The certificate reports on asbestos as at the time it is issued (art. 21.1) and, until implementing regulations are adopted, must at least state whether visible asbestos is present or absent, the state of repair of the materials and their risk (art. 21.3). According to the criteria published by the Agencia de Residuos de Cataluña (the Catalan Waste Agency) on 30 September 2026, it is signed by architects, building engineers (arquitectos técnicos), engineers or technical engineers after visiting the accessible areas; it is visual only, with no sampling or laboratory work; it covers the home or premises, not the common parts; and it does not expire. The Agency requires it for properties built before 2002, a cut-off the law does not set and which falls short: a building constructed or refurbished in 2002 may still contain asbestos.

Two clarifications. Failing to deliver the certificate is a minor infringement (art. 53.c), but the chapter on penalties does not come into force until its implementing decree is approved (seventh final provision), and no fine will pay for the removal: what counts is the civil claim. And the law is addressed to those who live, provide services or carry on business in Catalonia and own property there (art. 3), so a seller who lives elsewhere will argue that it does not apply to him. His civil liability does not depend on that: unless another law is expressly chosen, the sale of a property located in Catalonia is governed by the Código civil de Cataluña (the Catalan Civil Code).

Without a certificate the sale stands, but the seller owes you that document

The law does not make the validity of the sale, or the signing of the deed, depend on the certificate: it is an obligation owed to you by whoever sells or lets. Article 6.3 of the Código Civil (the Spanish Civil Code) only renders acts contrary to mandatory rules void where the rule provides for no other effect, and this one provides for a penalty; and the seventh additional provision merely requires the certificate of presence of asbestos to be entered in the Registro de la Propiedad (the Land Registry) when the transfer is registered. A claim for annulment based solely on the missing document is bound to fail. If the notary warned that it was missing and the deed records it, that warning will form part of the evidence in the lawsuit.

What you do have is a civil claim. In Catalonia, the property sold must be delivered with the agreed documents and with those the buyer can reasonably expect to receive (art. 621-20.1.c and 2.d of the Código civil de Cataluña), and few documents can more reasonably be expected than one the law requires to be delivered. Its absence is a lack of conformity: you can require the seller to provide it and to bear all the costs (art. 621-38.4) or, if the seller does not, commission it yourself at the seller's expense (art. 621-38.5), with compensation for any loss the omission causes you (art. 621-37).

The limit is termination: article 621-40.3 bars it for a minor lack of conformity, and the mere absence of the document is minor, unless asbestos turns up behind it that changes what you bought. If the deed records that you agreed to sign without the certificate, the seller will say that you took on the risk. Between private individuals these rules can be varied by agreement; if you bought from a business as a consumer, any agreement varying them to your detriment is ineffective (art. 621-2.2). But waiving the document is not knowing about the asbestos: article 621-26 only releases the seller from what you knew or could not reasonably have been unaware of, and that is proved material by material.

The certificate cuts both ways: what you knew when you signed

The presence of asbestos is not enough to win. The property is in conformity if it has the agreed characteristics and those that can reasonably be expected, given its nature and the public statements of the seller or of whoever acts on the seller's behalf, such as the agency that wrote the listing (arts. 621-20 and 621-25). A 1974 flat is not judged like a new one, and the seller will say that fibre cement was normal at the time. That is why what sets the expectation is what you were told: a certificate of absence, or a listing that sold the flat as refurbished and ready to move into, weighs in your favour.

The other side of the coin is article 621-26: the seller is not liable for what you knew or could not reasonably have been unaware of when you entered into the contract. If the certificate said that the tank on the utility balcony was fibre cement and you signed, you cannot claim for it; if the fibre cement, so-called uralita, was in plain sight on every viewing, it will not be easy either. The law makes exceptions for deliberate concealment, gross negligence and a guarantee given by the seller. We will argue that whoever sells from 3 October 2026 without delivering the mandatory certificate is, at the very least, grossly negligent and cannot hide behind the claim that you should have seen it.

That leaves what the certificate does not see. It is visual: asbestos under a floor, behind a false ceiling or inside a built-in cupboard may not show up, and according to the Agency the certificate warns that there may be hidden asbestos-containing materials. If the material was in plain sight and the certificate said “absence”, it is defective: the seller is liable to you all the same, and the technician is liable for his or her negligence. And if deteriorated material comes to light, a lack of conformity that becomes apparent within two years of handover is presumed to have existed at handover (art. 621-24.1), or within the first year if a business sold you a second-hand home (art. 621-24.3).

Two clocks in Catalonia, six months elsewhere

In Catalonia two periods run at the same time. The seller is liable for a lack of conformity that existed at handover and becomes apparent within the following three years (art. 621-23.1), and the right to claim is extinguished three years after you learn or could learn of it (art. 621-44.1 and 3). If the asbestos appears in the second year, you have three years from then; if it appears in the fourth, you are too late. If a business sold you a second-hand home, the contract may have cut the first period to one year (art. 621-23.4). And if you bought from a private individual, you had to examine the property as soon as possible (art. 621-28): the seller will say that you could have known from handover whatever that examination would have revealed.

The law calls that three-year period an extinction period, without saying whether it is a limitation period, which can be interrupted, or an expiry period, which cannot; legal scholars disagree and we work on the strictest assumption: a complaint sent by burofax (a certified letter) does not stop it. What protects it is a formal request to negotiate that defines its subject matter: it interrupts the limitation period or suspends the expiry period from the attempted delivery, and the count starts afresh or resumes if within thirty calendar days there is no first meeting and no written reply (art. 7 of Ley Orgánica 1/2025, the Organic Act on efficiency measures in the public justice service). In addition, the lack of conformity must be notified without undue delay: a delay does not cost you the right, but it makes you liable for the loss it causes, unless the seller knew of the lack of conformity and kept quiet about it (art. 621-29).

Outside Catalonia there is no certificate, and a claim for hidden asbestos is a claim for hidden defects: a six-month expiry period runs from handover (art. 1490 of the Código Civil), and in a sale by public deed handover usually coincides with signing, even if the asbestos appears later; we explain this in our guide on hidden defects in second-hand homes. The nuance specific to this case: fibre cement in good condition and in plain sight is hardly a hidden defect (art. 1484). Once the six months have passed, a claim for fraud remains if the seller concealed it (four years from completion of the contract, art. 1301), and so does breach of contract (five years, art. 1964.2), which the courts reserve for a home that is unusable.

What to claim, from whom and before which court

In Catalonia the order matters. First, you demand correction: the seller must deliver the certificate and have the asbestos removed by an authorised company, bearing all the costs (arts. 621-37.1.a and 621-38.4). If the seller does not do so within a reasonable time, you may do it at the seller's expense (art. 621-38.5) or seek a price reduction, proportionate to the difference between the property's value at handover and the value it would have without the defect (arts. 621-40.1 and 621-41.1); if the lack of conformity is very serious, you can go straight to the reduction or to termination. Termination requires a lack of conformity that is not minor or a fundamental breach, and is effected by notice (arts. 621-40.3 and 621-42). Damages can be claimed in addition to any of these remedies (art. 621-37.2).

Outside Catalonia, article 1486 of the Código Civil lets you choose between withdrawing from the contract, with reimbursement of expenses, and reducing the price as assessed by experts, with damages if the seller knew of the defect and you withdraw. Under both regimes the reference figure is the cost of removing the asbestos through a company entered in the Registro de Empresas con Riesgo por Amianto (RERA, the register of companies authorised to work with asbestos), with an approved work plan, plus any remaining loss of value. In Catalonia, moreover, whoever knows of asbestos must report it to the authorities and, as owner, keep the property free of it and take the measures needed to remove it (art. 11.b and d): what is quantified is removal, not encapsulation. And do not count on grants: as of 3 October 2026 no call for applications is open.

The claim goes to the sección civil of the Tribunal de Instancia (the civil section of the first-instance court): the one for the seller's domicile if you are claiming over the purchase, and the one for the place where the property is located if it is a tenancy. Beforehand, article 5 of Ley Orgánica 1/2025 requires resort to an appropriate dispute resolution method, because this type of dispute is not exempt: direct negotiation or negotiation between lawyers, mediation, conciliation or a confidential binding offer, on the same subject matter as the lawsuit. If you are a consumer dealing with a business, a prior complaint without a satisfactory reply is enough (seventh additional provision). It is not needed for preliminary inquiries or prior interim measures. The agency or the property manager can only be pursued for their own proven negligence.

In a tenancy, the landlord repairs and you keep paying

In Catalonia, the landlord must give you the certificate when letting the property (art. 21.2 of Ley 8/2026). The law does not distinguish between a main home, a seasonal let or commercial premises, nor does it mention room lets, which are left to interpretation, and according to the Agency the same certificate serves for successive lettings if the property does not change. If you are not given it, article 27.1 of the Ley de Arrendamientos Urbanos (LAU, the Urban Leases Act) allows you to demand performance or terminate under article 1124 of the Código Civil; termination over the document alone is unlikely to succeed, but the cost of obtaining it is a recoverable loss (art. 1101).

If deteriorated asbestos comes to light, article 21 of the LAU applies throughout Spain: the landlord must carry out, without raising the rent, the repairs needed to keep the home habitable. You must tell the landlord as soon as possible and allow the condition to be checked; if the works last more than twenty days, the rent goes down in proportion to the part of the home you lose the use of. The law allows you to carry out urgent repairs, after giving notice, and to demand reimbursement at once, but with asbestos only through a specialist company, never by doing it yourself. If the landlord does not repair, you may terminate the lease (art. 27.3.a).

What you must not do is stop paying: non-payment is a ground for termination in the landlord's favour (art. 27.2.a) and turns your claim into an eviction. If the certificate already said there was asbestos in good condition, you knew when you signed: you cannot claim merely because it is there, although you can demand that it be properly maintained and repaired if it deteriorates. Outside Catalonia there is no certificate, but the landlord's duty to keep the home in repair is the same, and the damages claim becomes time-barred after five years, which, for continuing obligations to act, run from each breach (art. 1964.2 of the Código Civil).

How we run the case, step by step

1. 1

   Establish the applicable law and the dates

   With the deed or contract we check where the property is, whether it was signed before or after 3 October 2026, the date of handover, when you learned of the asbestos and whether the seller was a private individual or a business. That determines the applicable law and the deadline.

2. 2

   Make sure nobody touches the material

   Do not break, sand, drill, paint or pressure-wash it, and do not sweep up or vacuum dust from a broken piece: that is a health risk and it destroys the evidence. Leave the damaged area unused until specialist staff step in.

3. 3

   Asbestos survey with sampling and laboratory analysis

   Our expert, with staff specialised in sampling, identifies each material, has it analysed in an accredited laboratory, assesses its condition and risk, notes what could not be inspected and obtains a removal quote from a company entered in the RERA (the register of companies authorised to work with asbestos).

4. 4

   Reconstruct what the seller knew

   We gather the listing and its earlier versions, the certificate or the record that it was missing, the clauses of the deed, the minutes of the community of owners, the property manager's communications and the building's technical inspection report.

5. 5

   Notice and request to negotiate

   We send the seller or landlord notice of the lack of conformity, with the report, and a formal request to negotiate that sets out everything being sought, including the alternative claims. This satisfies the pre-action requirement and protects the time limit from the attempted delivery.

6. 6

   Claim, expert evidence and enforcement

   If within thirty days there is no meeting or written reply, or the negotiation fails, we file the claim with the sección civil of the Tribunal de Instancia (the civil section of the first-instance court) before the time limit expires. At trial the expert defends the report; with judgment in hand, we enforce payment or the return of the price.

The law that applies

• Arts. 21, 53.c y disposición final 7.ª Ley 8/2026. Requires the certificate of presence or absence of asbestos to be delivered on a sale or letting; pending regulations, it must at least state the visible asbestos, its state of repair and its risk. Failing to deliver it is a minor infringement, but the chapter on penalties only comes into force with its implementing decree; until then the general environmental penalty provisions apply. BOE-A-2026-17836
• Arts. 10.h y 12.1 Ley 8/2026. Article 10.h requires businesses and professionals in asbestos management and removal to state, in consumer relationships, whether asbestos is present or absent in advertising for the sale or letting of homes, in line with the certificate; article 12.1 requires property managers and other related professionals to report asbestos and to see to it that the owner delivers the certificate. BOE-A-2026-17836
• Arts. 621-20, 621-25 y 621-26 CCCat. Goods conform if they have the agreed characteristics and those reasonably to be expected given their nature and the public statements of the seller or whoever acts on the seller's behalf, and come with the documents to be expected; the seller is not liable for what the buyer knew or could not reasonably have been unaware of, save for deliberate concealment, gross negligence or a guarantee given. BOE-A-2017-2466
• Arts. 621-23, 621-24, 621-28, 621-29 y 621-44 CCCat. The seller is liable for a lack of conformity existing at handover that becomes apparent within three years, presumed to have existed then if it appears within the first two years; the buyer must examine the goods promptly, except in consumer sales, and notify the lack of conformity without undue delay or answer for the delay; the actions are extinguished three years after the buyer learns or could learn of it. BOE-A-2017-2466
• Arts. 621-37, 621-38, 621-40, 621-41 y 621-42 CCCat. The buyer may demand correction with all costs borne by the seller, or carry it out at the seller's expense if the seller does not; reduce the price in proportion to the difference in value; terminate by notice if the lack of conformity is not minor or the breach is fundamental; and always claim damages as well. BOE-A-2017-2466
• Arts. 1484, 1485, 1486, 1490, 1269 y 1270 CC. The seller is liable, even if unaware of them, for hidden defects that make the item unfit for its use or so diminish that use that the buyer would not have bought it or would have paid less, but not for obvious ones; the buyer chooses between withdrawing from the contract and reducing the price as assessed by experts, with damages if the seller knew of them and the buyer withdraws; the actions are extinguished six months after handover. Serious fraud allows the contract to be annulled; incidental fraud only gives rise to damages. BOE-A-1889-4763
• Arts. 21 y 27 LAU. The landlord must carry out, without raising the rent, the repairs needed to keep the home habitable, with a proportionate rent reduction if the works last more than twenty days; the tenant must give notice as soon as possible and may carry out urgent repairs, after notifying the landlord, and claim their cost. On breach, performance can be demanded or the lease terminated: by the tenant if those repairs are not made; by the landlord, among other grounds, for non-payment. BOE-A-1994-26003
• Arts. 5 y 7 y disposición adicional 7.ª LO 1/2025. Requires prior resort in civil matters to an appropriate dispute resolution method, save in the excepted matters and not for preliminary inquiries or prior interim measures; a request to negotiate that defines its subject matter interrupts the limitation period or suspends the expiry period, and the count starts afresh or resumes if there is no first meeting or written reply within thirty calendar days; in consumer disputes a prior complaint to the business without a satisfactory reply is enough. BOE-A-2025-76

Each article checked against the consolidated text published in the BOE (the Spanish official gazette).

Frequently asked questions