Neighbour's or community's broken asbestos roof in Spain: demand its removal

The case, in five lines

What is brought

The acción negatoria (the action to stop interference with your property) against the owner of the property the fibres come from (arts. 544-4 and 546-13 of the Civil Code of Catalonia), or the action under art. 546-11 if the condition of the roof threatens the healthiness of your property: removal or, in the alternative, measures that eliminate the danger, plus compensation. Against your community, a challenge to the resolution refusing the works and an order to carry them out. Outside Catalonia, arts. 7.2, 590, 1902 and 1908 of the Código Civil (the Spanish Civil Code) and arts. 10 and 18 of the Ley de Propiedad Horizontal (the Horizontal Property Act).

Before which court

The sección civil of the Tribunal de Instancia (the civil section of the first-instance court) where the property stands (art. 52.1.1 of the Ley de Enjuiciamiento Civil, the Civil Procedure Act), through ordinary proceedings if what is claimed exceeds 15,000 euros or cannot be valued. A prior attempt to negotiate is required (art. 5 of Organic Act 1/2025), except to seek interim measures before the claim or the summary demolition of a ruinous structure. Appeal lies to the Audiencia Provincial (the provincial court of appeal); in matters of Catalan civil law, an appeal in cassation lies to the Tribunal Superior de Justicia de Cataluña (the High Court of Justice of Catalonia).

Deadline

In Catalonia, the acción negatoria can be brought while the interference lasts, and compensation becomes time-barred three years after you become aware of it (art. 544-7 of the Civil Code of Catalonia). Elsewhere, cessation can be sought while the emission persists, but a fault-based compensation claim becomes time-barred one year after you learned of the damage (art. 1968.2 of the Spanish Civil Code). The right to challenge a resolution of the owners' meeting expires after one year if it breaches the law or the by-laws and after three months if it is merely harmful: in Catalonia, counted from notification of the minutes (art. 553-31.4 of the Civil Code of Catalonia); elsewhere, from the meeting or, for an absent owner, from notification of the resolution (art. 18.3 of the Horizontal Property Act). A request to negotiate interrupts the limitation period and suspends the expiry period (art. 7 of Organic Act 1/2025).

Who can bring it

In Catalonia, the claim is brought by owners and by holders of limited rights in rem that carry possession, such as a usufructuary (art. 544-4 of the Civil Code of Catalonia); a tenant may only claim for their own loss. It is brought against whoever causes the emission, usually the owner of the neighbouring property, or against the community if the roof is a common element. A resolution may be challenged by those who voted against, those deprived of their vote and absent owners (in Catalonia, if they objected in writing within the month following notification), provided they are up to date with payments.

Financial risk

If it is not proved that the material contains asbestos and that it releases fibres or endangers your property, the claim is dismissed and whoever has all their claims rejected pays the costs, unless the case raised serious doubts of fact or law. The report and the analyses are paid for up front: in Catalonia, a certificate for a home with sampling and analysis starts at around 500 euros plus VAT. Interim measures require the applicant, save in exceptional cases, to provide security (art. 728.3 of the Civil Procedure Act). And if you win against your community, the works are paid for by everyone, you included.

In Catalonia, asbestos fibres are now a prohibited emission

Catalan Act 8/2026 on the eradication of asbestos has been in force since 3 October 2026, and its most useful change for an affected neighbour is in the third final provision, which rewrites article 546-13 of the Civil Code of Catalonia: emissions of smoke, noise, gases, asbestos fibres and the like produced by unlawful acts of neighbours that cause damage to the property or to those living in it are prohibited and give rise to liability. Previously, you had to argue that fibres fell within “and the like”; now the law names them.

It is enforced through the acción negatoria (the action protecting ownership against interference): article 544-4 allows owners to put an end to unlawful emissions and to require that they do not recur, and article 544-6 adds compensation and a decisive rule: the claimant does not have to prove that the interference is unlawful. Against a roof falling apart on its own, article 546-11 often fits better, because it requires not an act by the neighbour but a condition: if a building element may affect the healthiness of the neighbouring property, measures ending the danger, or even its demolition, can be demanded.

This applies to properties located in Catalonia. Elsewhere, no civil-law rule names asbestos, but the action exists: the courts base the action to stop harmful emissions on article 590 of the Spanish Civil Code, which requires anyone setting up dangerous or noxious installations next to someone else's wall to take precautions after an expert opinion, and on article 1908.2, which makes owners liable for excessive harmful smoke, a rule extended to other emissions. Article 7.2 allows measures to be sought against abuse of right, including by omission, and article 1902 provides compensation.

The case is won not by proving there is asbestos, but that it is being released

This is what turns a winnable case into a lost one: the presence of asbestos is not enough. The Order of 7 December 2001, which banned its sale, allowed what was already installed to remain until removed or until the end of its useful life. Act 8/2026 requires buildings to be kept free of asbestos once it has been identified (art. 11.d), but with removal within the time limits the competent institutions set with binding effect (fourth additional provision). If no one has set one, nothing obliges your neighbour to dismantle an intact and stable roof tomorrow.

What wins the case is the emission or the danger. Article 546-14 requires owners to tolerate emissions that are harmless or cause no substantial harm, and generally treats as substantial those exceeding limit values set by statute or regulation. The neighbour's expert will probably compare against the limit value in Royal Decree 396/2006, but that is an occupational exposure limit, not a threshold of harmlessness for the people living next door. The evidence that matters lies elsewhere: broken sheets, an eroded surface with exposed fibres, fragments and dust containing asbestos on your property, and who is exposed.

That is why the claim is framed in tiers: as the main request, removal by an authorised contractor, the only kind that may carry it out (art. 31 of Act 8/2026); in the alternative, the measures the expert considers appropriate, since the Act accepts cases where making the material harmless is enough (art. 30.2); and in every case, a ban on handling it, plus compensation. The neighbour's most serious defence will be article 546-14.2: normal use and disproportionate expense. If it succeeds, there would be no removal: you would be entitled to damages and, where applicable, compensation, and could mitigate the harm at the neighbour's expense (art. 546-14.3 and 4). Against that stand the new article 546-13 and the duty in article 11.d.

The evidence that decides it: a laboratory analysis, not a photo

A photo proves that there are broken sheets, not that they contain asbestos. Not all fibre cement does, and the neighbour's first defence will be that theirs does not. What settles it is a laboratory analysis of a sample, using the method for identifying asbestos in materials of the Instituto Nacional de Seguridad y Salud en el Trabajo (the National Institute for Safety and Health at Work), known as MTA/PI-010. You do not take the sample: specialised personnel do, such as the technician we work with, without breaking more material than necessary, and an accredited laboratory analyses it.

The second problem is access: you cannot climb onto your neighbour's roof. There are three routes: the fragments and dust that have fallen onto your own property, which our technician collects without entering anywhere; an administrative inspection, because the inspector can gain access and his report carries a presumption of accuracy; and, once proceedings are under way, an examination of the roof by the expert, which can be requested from the court. If needed, airborne fibres are also measured (method MTA/MA-051), in representative conditions and not on the calmest day.

The certificate of presence or absence of asbestos that Act 8/2026 has required since 3 October 2026 when property in Catalonia is sold or let replaces none of this: according to the Agencia de Residuos de Cataluña (the Catalan Waste Agency), the basic model is a visual inspection without samples, and outside Catalonia it is not compulsory. What wins is a technical report stating what the material is, what condition it is in, what is falling onto your property and what risk it poses, backed by laboratory work. If the asbestos turned up in the home you bought or rented, that is a different case, brought against whoever sold or let it to you.

How much time you have and what must happen before you sue

In Catalonia, article 544-7 runs two separate clocks. The acción negatoria can be brought for as long as the interference continues: while the roof keeps releasing fibres onto your property, you can ask for it to stop, and the exception for acquisition by prescription (usucapión) hardly fits an emission of asbestos. Compensation, by contrast, becomes time-barred three years after you become aware of the interference, as does the compensation under article 546-14. Count from the day you found out, not from when the emission ends.

Outside Catalonia the margin is much narrower. Cessation can be sought while the emission persists, but fault-based compensation under article 1902 of the Spanish Civil Code becomes time-barred one year after the injured party learned of the damage (art. 1968.2). Where the damage is continuing, the courts tend to postpone the start of the period until its final outcome is known, but not all apply this in the same way. In both territories, the limitation period is interrupted by an out-of-court claim that can be proved: that is the first thing to send.

Before suing, an attempt to negotiate is required: article 5 of Organic Act 1/2025 demands it in civil matters, and neither the acción negatoria, nor the damages claim, nor the challenge to a resolution is excepted. The summary demolition of a ruinous structure that threatens damage is excepted, and no negotiation is needed to seek interim measures before the claim. A request to negotiate that defines its subject interrupts the limitation period and suspends the expiry period from the attempt to deliver it (art. 7). If pieces are falling, the court can forbid the neighbour from touching the roof and order provisional safety measures (art. 727 of the Civil Procedure Act).

If the asbestos is in your own building, the community must act

If the uralita is in the roof, the downpipes or the water tank of your own building, the obligation lies with the community. In Catalonia, article 553-44 requires it to maintain the common elements in conditions of habitability, watertightness and safety in line with the regulations in force. Removal, whether upkeep or an improvement required for habitability or safety, is approved by a simple majority of owners and shares, even if it affects the structure or the exterior (art. 553-25.2), not by four fifths. And everyone pays according to their share, including the commercial premises that do not use the roof, unless the by-laws say otherwise (art. 553-45).

If the owners' meeting rejects the works, the resolution can be challenged (art. 553-31) within one year if it breaches the law, the deed of constitution or the by-laws or is abusive, and within three months if it is contrary to the common interest or seriously harmful to an owner, counted from notification of the minutes. Challenges may be brought by those who voted against, those deprived of their vote and absent owners who objected in writing within the month following notification (art. 553-25.6), provided they are up to date with payments, and an order to carry out the works is sought with the challenge. The property manager, moreover, must report the asbestos to the owners and to the bodies running the Catalan Asbestos Census (art. 12.1.a of Act 8/2026).

Outside Catalonia, the Horizontal Property Act is more direct: its article 10.1(a) makes the necessary upkeep works compulsory, including safety and habitability works, without a prior resolution of the owners' meeting, whether imposed by the authorities or requested by an owner; the meeting merely apportions the levy (art. 10.2). If it votes against, the resolution can be challenged under article 18 within three months of the meeting, or one year if it breaches the law or the by-laws. If the person handling asbestos is a neighbour in the same building, the route is the cessation action of article 7.2, which we explain in our guide on nuisance activities.

The authorities, in parallel: inspection, removal deadlines and coercive fines

The administrative route runs in parallel and is best opened at the same time. In Catalonia, reporting asbestos is not just a right: article 11.b of Act 8/2026 requires members of the public to inform the authorities of places with asbestos they know of. Municipalities with more than twenty thousand inhabitants may inspect and impose penalties unless the function has been assigned to another body (art. 45.2). According to the Agencia de Residuos de Cataluña, until the implementing regulation is adopted, there is no specific channel for the Census: its ordinary channels are used, such as the asbestos inquiry form or the 012 helpline.

Inspection provides the best evidence. The inspector is a public officer, may enter places with asbestos while respecting the inviolability of the home and order the owner to remedy irregularities within a time limit (arts. 47 and 48), and his reports carry a presumption of accuracy. Removal takes place within the binding time limits set by the competent institutions (fourth additional provision), and to enforce its orders the Act provides for coercive fines of 150 to 3,000 euros, repeatable every six months, with the criteria for their amount to be set by regulation (art. 59), and for ejecución subsidiaria, in which the authority does the work itself at the owner's expense (art. 60).

What cannot be promised today matters too. The Act's penalty regime (articles 49 to 58), with its fines and provisional measures, does not come into force until its decree is approved; meanwhile, the general environmental penalty rules apply. As at 3 October 2026, no grant scheme for removing asbestos is open in Catalonia. Elsewhere, the national Act 7/2022 requires municipalities to draw up a public asbestos census and a removal schedule, with no general deadline for private owners. And while the authorities act, the limitation period for damages keeps running.

How we run the case, step by step

1. 1

   Touch nothing: safety first, evidence intact

   Nobody should sweep, break, pressure-wash or paint the material. Keep children and animals away from the pieces and document everything with dated photos and videos.

2. 2

   Technical report with laboratory analysis

   Our technician inspects from your property, collects the fragments and dust that have fallen onto it, sends them to an accredited laboratory and describes the condition of the roof and the risk.

3. 3

   Report to the authorities

   In Catalonia we report the asbestos to the town council and to the Agencia de Residuos de Cataluña (the Catalan Waste Agency) and request an inspection; outside Catalonia, to the town council, which must keep its asbestos census.

4. 4

   Formal request to negotiate

   We send the owner, or the community through its president, a request that sets out the subject: removal or alternative measures, a deadline and compensation. It meets article 5 of Organic Act 1/2025 and interrupts the limitation period.

5. 5

   Interim measures if the danger is immediate

   If pieces keep falling or the neighbour announces that he will handle the roof, we ask the court for an injunction prohibiting it and ordering provisional safety measures, before the claim if it is urgent.

6. 6

   Claim and enforcement

   We file the acción negatoria or the action under article 546-11, with removal as the main request, alternative measures and compensation; against the community, a challenge and an order to carry out the works. If the judgment is not complied with, it is enforced at the losing party's expense.

The law that applies

• Art. 546-13 CCCat. As worded by the third final provision of Act 8/2026, in force since 3 October 2026, it prohibits emissions of smoke, noise, gases, asbestos fibres and the like produced by unlawful acts of neighbours that damage the property or harm those living in it, and imposes liability for the damage. BOE-A-2006-11130
• Arts. 544-4 a 544-7 CCCat. The acción negatoria allows owners and holders of limited rights in rem that carry possession to stop unlawful emissions and prevent future ones, with compensation and without proving unlawfulness; it may be brought while the interference lasts, and compensation becomes time-barred after three years. BOE-A-2006-11130
• Arts. 546-11 y 546-14 CCCat. If the condition of a building element may affect the healthiness of the neighbouring property, measures or its demolition may be demanded. Harmless or insubstantial emissions must be tolerated, as must, against compensation, substantial ones from normal use that would be disproportionate to stop. BOE-A-2006-11130
• Arts. 553-25, 553-31, 553-44 y 553-45 CCCat. The community maintains the common elements in line with the regulations in force and everyone pays according to their share; required improvements are approved by simple majority. The right to challenge expires after one year if the resolution breaches the law or is abusive and after three months if it is harmful. BOE-A-2006-11130
• Arts. 11, 47, 48, 59 y DA 4.ª Ley 8/2026. Forbids handling asbestos, requires it to be reported and buildings to be kept free of it once identified, with removal within the binding time limits set by the competent institutions; governs inspection, whose reports carry a presumption of accuracy, and coercive fines of 150 to 3,000 euros. BOE-A-2026-17836
• Arts. 7.2, 590, 1902, 1908 y 1968 CC. Abuse of right, by act or omission, must be compensated and allows measures to stop it; noxious installations next to someone else's wall require precautions after an expert opinion; there is liability for fault and for excessive harmful smoke; the fault-based action becomes time-barred after one year. BOE-A-1889-4763
• Arts. 10 y 18 LPH. Necessary upkeep works, including safety and habitability works, are compulsory without a prior resolution and the meeting merely apportions the levy. The right to challenge expires three months after the meeting, or one year after it if the resolution breaches the law or the by-laws, and the challenger must be up to date with payments. BOE-A-1960-10906
• Arts. 5 y 7 LO 1/2025. Requires a prior attempt at an appropriate dispute resolution method in civil matters, save, among others, for the summary demolition of a ruinous structure and interim measures before the claim; a request to negotiate interrupts the limitation period and suspends the expiry period. BOE-A-2025-76

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

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