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Dealing with Noise and Neighbours in Portugal

The general noise regulation, the 23:00 to 07:00 rule, when building work is banned, and how to make a complaint that counts.

Dealing with Noise and Neighbours in Portugal

Last verified: September 2026.

Who this is for

  • You own or rent a home and a neighbour, bar, or building site is keeping you awake.
  • You are planning renovation works and want to stay within the permitted hours.
  • You are organising an event or run a business that makes noise.

Not for you if: your problem is a dispute with your own landlord about repairs or rent. Read Renting a Home in Portugal instead.

Portugal has one national noise law, the general noise regulation (Regulamento Geral do Ruído). It sets when building work is allowed, what the police can do about noisy neighbours, and how much noise a bar may add. From 23:00 to 07:00, the police can order neighbour noise to stop at once. Renovation work inside a building is only allowed on working days from 08:00 to 20:00. Complaining costs nothing. What makes a complaint work is a police report and a written record.

The hours that matter

The law divides the day into three periods. Most rules hang off them:

  • Daytime: 07:00 to 20:00
  • Evening: 20:00 to 23:00
  • Night: 23:00 to 07:00

There is no single "quiet hours" rule. Instead, different rules switch on at different times. Building work follows its own hours, set out below.

Noise from neighbours

The law covers noise from ordinary home life: parties, music, shouting, furniture, appliances, and animals. It applies when the noise, by how long it lasts, how often it happens, or how loud it is, can harm health or the peace of the neighbourhood.

Three things follow:

  • There is no decibel limit for neighbour noise. Nobody needs to measure it. The test is duration, repetition, or intensity, judged in context.
  • Dogs count. A dog barking for hours is covered in the same way as a party.
  • It applies at any hour. It is not only a night rule.

What the police can do depends on the time:

  • From 23:00 to 07:00, they can order the person making the noise to stop it immediately.
  • From 07:00 to 23:00, they can set a deadline for the noise to stop.

Ignoring either order is an offence with a fine.

When building work is allowed

If you, or a neighbour, are renovating inside a building used for homes, shops, or offices, the rule is simple. Noisy work is allowed only on working days, from 08:00 to 20:00. That means:

  • no noisy work on Saturdays, Sundays, or public holidays
  • no noisy work before 08:00 or after 20:00 on weekdays
  • no special licence needed within those hours

Whoever is running the works must put up a notice where the building's users can see it. It must give the expected length of the works and, where possible, the noisiest hours.

For building sites and other temporary noisy activities near homes, such as construction, shows, fairs, and sports events, the same limits apply. They are banned on Saturdays, Sundays, and public holidays, and on weekdays from 20:00 to 08:00. They are also banned near schools during school hours and near hospitals at any time.

Urgent works are the exception. Work needed to prevent danger to people or property, such as a burst pipe or a collapsing ceiling, can happen at any hour.

If work breaks these rules, the police can stop it on the spot, on their own initiative or at your request. They must then write a report and send it to the town hall (câmara municipal), which opens the fine process.

Special noise licences for events

If you want to run a noisy activity outside the permitted hours, such as an event, a street party, or night works, you need a licence. This is a special noise licence (licença especial de ruído) from the town hall. It is granted only in exceptional, justified cases.

Apply at least 15 working days before the activity. Your application must state:

  • the exact location or route
  • the start and end dates
  • the hours
  • why the activity must happen at that place and time
  • the steps you will take to reduce noise, where relevant

A licence for more than a month comes with limits at nearby homes: 60 dB(A) in the evening and 55 dB(A) at night.

Town halls do not need a licence for their own events, but the same limits apply to them. Fees and forms vary by town hall. Check your council's website.

If you are a neighbour, you can ask the town hall which noise licences it has issued for an address. That tells you whether a late event was authorised.

Bars, restaurants, and other businesses

A business that makes noise as part of its normal activity must pass two tests.

Overall noise limits. These depend on how the municipal plan classifies the area:

AreaDay, evening, and night averageNight
Sensitive zone (mainly homes, schools, hospitals)55 dB(A)45 dB(A)
Mixed zone (homes with shops and services)65 dB(A)55 dB(A)
Area not yet classified63 dB(A)53 dB(A)

Town halls can set limits 5 dB(A) lower in defined areas, such as historic centres. Check your municipal noise rules.

The nuisance test (critério de incomodidade). This compares the noise with the business running against the background noise without it. The difference cannot exceed:

  • 5 dB(A) in the daytime
  • 4 dB(A) in the evening
  • 3 dB(A) at night

This is the test that catches most bars. A business can be within the overall limits and still fail it. The test does not apply where outdoor noise is 45 dB(A) or less, or noise inside your home is 27 dB(A) or less.

Only an accredited laboratory, using calibrated equipment, can carry out these measurements. A phone recording is useful to show a pattern, but it is not a measurement.

Car alarms and noisy vehicles

  • Car alarms must cut out after 20 minutes. The police can remove a parked car whose alarm has sounded for more than 20 minutes.
  • Exhausts. A vehicle cannot be noisier than the level on its registration document, plus 5 dB(A). Noise is checked at the periodic vehicle inspection.
  • Small airfields. Civil take-offs and landings between 00:00 and 06:00 are banned at airfields not covered by the separate airport noise rules, except in emergencies.

How to complain, step by step

  1. Talk to the neighbour first, if it is safe. Many disputes come from people not knowing the hours. For renovation noise, mention the working-day rule and the missing notice.
  2. Keep a log. Write down dates, times, how long the noise lasted, and what it was. Add phone recordings. Two or three weeks of entries show a pattern.
  3. Call the police while it is happening. That is the PSP in cities and the GNR elsewhere. Ask an officer to attend and to write an occurrence report (auto de ocorrência). Note the report number. This is the document that starts the fine process.
  4. Complain in writing to the town hall. It handles fines for neighbour noise and for building works. Its municipal police and inspectors can also act. Attach the report number and your log.
  5. For a licensed business, also write to the authority that licenses it, usually the town hall. You can use the business's complaints book too. The guide to Filing a Consumer Complaint in Portugal (Livro de Reclamações) explains how. The regional coordination commission (CCDR) and the national environment inspectorate (IGAMAOT) also have inspection powers.
  6. Consider a civil claim. A fine punishes the offender but pays you nothing. The Civil Code protects your health and rest and limits noise coming onto your property. A court can order the noise to stop and award damages. It is slower and costs money, but it does not depend on the town hall acting.

What the fines are

Noise offences are environmental offences. The amounts are set by national law.

Light offences include:

  • building works inside a building outside the permitted hours
  • not posting the works notice
  • ignoring a police order to stop or suspend noise
  • running a noisy event without a licence, or breaking its conditions
  • a car alarm without a 20 minute cut-off

Fines for light offences:

NegligenceIntent
Individuals€200 to €2,000€400 to €4,000
Companies€2,000 to €18,000€6,000 to €36,000

Serious offences include a bar or business breaking the noise limits or the nuisance test, or operating a noisy activity in a sensitive zone.

NegligenceIntent
Individuals€2,000 to €20,000€4,000 to €40,000
Companies€12,000 to €72,000€36,000 to €216,000

Inspectors can also suspend an activity, close premises as a precaution, or seize equipment.

If you live in a flat

If you own a flat, the building's rules and the owners' meeting can restrict noisy activities beyond the law. Raise a recurring problem at the meeting and have it recorded in the minutes. That record helps in a complaint or a court case. The guide on How a Condominium (Condomínio) Works in Portugal explains the meeting's powers.

If the noise comes from a short-term rental (alojamento local) in your building, the owners can act. By a vote of owners holding more than half of the building's value (permilagem), they can oppose the rental. They must show repeated acts that disturb the building or residents' rest. The town hall's mayor then decides whether to cancel the rental's registration. Keep your log and police reports: they are the evidence.

If the noisy neighbour is a tenant, their landlord can end the lease for serious or repeated breaches of the rules of peace and good neighbourliness. Writing to the landlord, with your evidence, sometimes works faster than the town hall.

Before you rent or buy

Ask the town hall how the municipal plan classifies the street. Night limits in a sensitive zone are 10 dB(A) stricter than in a mixed zone. A flat above bars in a mixed zone has much less protection. The guides to Choosing a Neighbourhood in Lisbon and Choosing a Neighbourhood in Porto cover the busier areas.

Sources

This guide is written from official Portuguese and EU sources and, for prices and contact details, the providers' own websites.

Last verified September 2026. Rules and fees change; check the official source before acting.

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