Disputes between residents in a condominium: what exists and who does what

Neighbour disputes are a natural part of life in a condominium — noise, animals, the use of common areas, works inside flats, smells, behaviour. What sets a well-run condominium apart is not the absence of disputes, it is the existence of formal instruments to handle them and clarity about what falls to each body and each party involved. This guide sets out the factual framework: the most frequent types, the internal rules as a matter for the assembly, the effective routes open to an owner in dispute, and the administrator's limited role.

The most frequent types

The catalogue of disputes in a condominium is, in practice, fairly stable. Five categories cover most of the situations that arise in a multi-family building.

• Noise. The most frequent category. Music outside permitted hours, works inside flats beyond the tolerance hours, parties, flooring that transmits the sound of footsteps, animals that bark constantly. There is general regulation through the neighbourhood-noise regime approved by Decree-Law 9/2007, on top of whatever the building's own internal rules may set out.
• Use of common areas. A parking space occupied outside the allotted bay, personal objects in passageways, common terraces used as a private extension, the pool or gym used outside hours. Disputes that typically arise from rules that are unclear or poorly communicated.
• Animals. Dogs or other animals in areas where the rules do not allow them, a lack of hygiene care in the common parts, danger perceived by other owners, a number of animals that exceeds the rule.
• Works inside flats. Works that affect common parts with no assembly resolution, structural or façade alterations without authorisation, working hours not observed, a failure to give prior notice to the immediate neighbours.
• Smells, smoke and behaviour. Smokers in common areas, persistent smells, barbecues on balconies, behaviour that affects the building's health and safety or its peace.

The internal rules: a matter for the assembly

The condominium's internal rules are the building's internal regulations, complementary to the constitutive title and to the law, governing the day-to-day life of the common parts. They are approved and amended by resolution of the assembly — they are not the administrator's, they belong to the community of owners. They bind everyone from the moment of approval, and their existence is one of the things that sets well-organised condominiums apart.

What they typically govern: quiet hours and the hours permitted for works inside flats, rules on the use of common areas (parking, pool, garden, common rooms), the admission and number of animals, rules on putting up notices in visible areas, mechanisms for communicating with the administrator and the assembly, and possibly fines provided for and the procedure for applying them (within the legal limits).

What they may not contain: rules contrary to the law, to the constitutive title, or that disproportionately limit ownership rights over the flats. The internal rules may set out behavioural obligations in the common parts, but they cannot, for example, prohibit lawful activities inside the flats.

The administrator's limited role

The duties of the condominium administrator are closed within Article 1436 of the Civil Code and Decree-Law 268/94, as amended by Law 8/2022 of 10 January. Calling assemblies, carrying out resolutions, conserving and managing the common parts, collecting fees, paying expenses, rendering accounts, representing the condominium in court. On disputes between residents, what falls to the administrator is narrow — and what does not fall to them is equally important to mark out.

What falls to the administrator: receiving and formally recording complaints brought by owners; notifying whoever is affected by the applicable rule, where applicable; issuing a circular addressed to the body of owners as a whole when a matter calls for general communication (interpreting a rule, a reminder of a rule of conduct, communicating an assembly resolution); taking contentious matters that require a resolution to the assembly (amending the rules, creating a new rule, a specific decision on a situation not covered by the existing ones); directing the owner to the competent authority when the case goes beyond the internal scope; documenting what was received and what was communicated.

What does not fall to the administrator: deciding who is right between owners in dispute; applying fines on their own initiative (these depend on the approved rules and the applicable legal limits); hearing the parties in a procedural sequence with a right of reply; serving residents as "offenders" in a formal procedure; mediating private disputes between neighbours in a legal sense; issuing formal warnings with a procedural escalation sequence. An administrator who takes on these functions encroaches on a competence that is not theirs — a competence that belongs to the assembly (resolution), to the competent public authority (the police, the municipal council, the health authority), or to the court (the taking of evidence, deciding between parties). And they expose themselves, in turn, to liability for the encroachment.

The routes open to an owner in dispute

The first concrete question for an owner in dispute is: what do they want, and what is the most direct route?

Direct communication with the neighbour. In many cases, a conversation between adults settles it. Mutual acknowledgement that there was a nuisance, an informal adjustment, an agreement on future conduct. It is the simplest and quickest route while the dispute is not yet entrenched.

The competent authority according to the type. When the case fits a framework set out in a law of its own, the correct route is the competent public authority, not the condominium's administrator: noise beyond the legal limits under the terms of Decree-Law 9/2007 — the police (PSP or GNR, depending on jurisdiction); health and safety hazards or risk to public health — the municipal council and the health authorities; dangerous animals or animals kept in non-compliant conditions — the veterinary authority and the municipal council; works inside flats outside the licensing regime — the municipal council; a criminal offence (threat, assault, material damage) — the police and the Public Prosecutor.

Taking it to the assembly when the matter requires a rule. If the situation is not covered by an existing rule but the community would benefit from having one, the proposal to create or amend the rules is taken to the assembly. The channel is the administrator — who calls the meeting or includes the proposed matter on the agenda — but the decision belongs to the community of owners.

Private mediation by a specialist body. For persistent disputes between private parties that do not fit a direct legal route, mediation by certified mediators, possibly through the Public Mediation System, is a real path. It carries a cost proportionate to the amount at stake, it is confidential, and it produces a written agreement that binds the parties.

The courts when a right has been infringed. A possessory action to defend rest or the enjoyment of the flat, a declaratory action for damages, an interim injunction where there is urgency. It requires individual legal advice, but it is a real route and exists precisely for the cases in which the amicable and administrative paths are exhausted.

When the case goes beyond the administrator's scope

There are situations in which the administrator's competence is demonstrably insufficient — and in which trying to resolve matters internally is regularly counterproductive, delaying the real resolution and potentially compromising evidence relevant to a future action.

A criminal offence. Verbal or physical assault, a threat, material damage attributable to wilful conduct — this is not a matter for the internal rules, it is a criminal or administrative-offence matter. The route is a complaint to the police and a report to the Public Prosecutor.

Public health or safety. Serious health and safety hazards, fire risk from accumulated materials, degraded hygiene conditions — these call for immediate communication to the competent authorities (the municipal council, the health authority, and in serious cases civil protection).

Infringed fundamental rights. Rest, personal integrity, property — the ground of the court, not the administrator. A possessory action, an interim injunction where urgency justifies it, possibly a criminal complaint brought alongside.

Disputes that require the taking of evidence and a decision between parties. Where deciding who is right depends on evidence to be presented and on the exercise of the right to be heard, the proper place is the court — not the administrator, who has no legal instrument to do so.

What you can ask for and what falls to the owner to do

For condominiums in Portimão, Lagos and Lagoa

The Western Algarve has an additional particularity in the handling of neighbour disputes that is worth noting. A significant share of the housing stock has seasonal and mixed occupancy — permanent residence and tourist use of the same flats, short-term lets in residential buildings, second homes used a few weeks a year. This creates specific types of dispute: intensive use of common areas by short-stay guests, noise outside the patterns of permanent residents, the management of keys and access, rules on displaying information in several languages. The formal instruments — up-to-date internal rules, a documented complaints channel, recourse to the competent authority when the case goes beyond the internal scope — do not change, but their practical application calls for sensitivity to the occupancy profile.