It usually arrives without a conversation. A printed slip from the management company in every mailbox. A note taped to the door. A neighbour who suddenly stops greeting you in the corridor. Occasionally a police officer at 23:30, apologetic and brief.
The instinct is to look for the rule that has supposedly been broken, and that search leads straight to a statute called the Noise Regulation Act. It is the wrong document: read its first article and you find it governs factories, business premises, construction work and vehicles. It says nothing about the person living above you.
What actually binds a resident sits elsewhere — in a local ordinance, in the lease you signed, and in civil law that turns on reasonableness rather than decibels. Below is what applies, what the national complaint data shows about how these cases end, and what a sensible response looks like, drawn from material published by the Ministry of the Environment, the Ministry of Land, Infrastructure, Transport and Tourism, the courts and the national statute database as at July 2026.
The Law With "Noise" in Its Name Does Not Apply to You
The Noise Regulation Act is Act No. 98 of 1968. Article 1 states its purpose: to regulate noise extending over a considerable range that arises from business activities at factories and business establishments and from construction work, and to set permissible limits for automobile noise.
Article 2 defines what is regulated. A "designated facility" is a facility installed at a factory or business establishment that generates significant noise and is specified by Cabinet Order — metalworking machinery, air compressors above a rated output, looms, printing machines. "Designated construction work" means construction operations specified by Cabinet Order, such as pile drivers and rock drills. Article 3 gives prefectural governors, and mayors within city areas, the power to designate the areas where these rules apply.
Nothing in that structure reaches a television, a vacuum cleaner, a piano, a crying child or footsteps on a wooden floor. The Ministry of the Environment confirms the gap in the FAQ of its own pamphlet on the Act: asked whether the Act regulates noise from late-night businesses or loudspeakers, it answers that these are left to local governments; asked what applies when noise falls outside the Act entirely, it again points to local ordinances and tells readers to ask their municipality or special ward.
Article 28 is where that hand-off is written down, providing that local governments are to take necessary measures — such as restricting business hours — for night-time noise from restaurant businesses and for loudspeaker broadcasting. Article 27 makes the same point from the other direction: the Act does not prevent local governments from enacting their own ordinances.
The practical consequence. If a neighbour says you are "breaking the noise law", they are almost certainly not describing a rule that applies to a private home. That does not make the complaint unreasonable or safe to ignore — it means the leverage against you sits in your lease and in local rules, not in national noise legislation.
Environmental Standards Are Targets, Not Limits
The second source of confusion is the set of decibel figures known as the environmental quality standards for noise, widely quoted online as though they were enforceable ceilings.
They are set under Article 16 paragraph 1 of the Basic Environment Act, which directs the government to establish, for air pollution, water pollution, soil contamination and noise, the environmental conditions that are desirable to be maintained in order to protect health and preserve the living environment. The Ministry of the Environment states the distinction directly: these are administrative policy targets, and they differ from the regulation standards under the Noise Regulation Act. Daytime runs 06:00 to 22:00 and night-time 22:00 to 06:00.
| Area classification | Daytime (06:00–22:00) | Night-time (22:00–06:00) |
|---|---|---|
| AA (areas needing particular quiet) | 50 dB or less | 40 dB or less |
| A and B (residential) | 55 dB or less | 45 dB or less |
| C (residential with commercial or industrial use) | 60 dB or less | 50 dB or less |
| Space adjoining a road carrying trunk traffic | 70 dB or less | 65 dB or less |
| Indoors, where residents mainly keep windows closed | 45 dB or less | 40 dB or less |
These numbers describe what a quiet residential area is meant to sound like. They are not a stick a neighbour can use on you: a smartphone app reading of 52 decibels from your apartment is not a legal finding of anything.
Where Real Numbers Live: The Local Ordinance
Enforceable numerical standards for everyday household noise, where they exist, come from prefectural and municipal ordinances. They vary by municipality — in the figures, in the time bands, and in whether they exist at all. There is no single national quiet-hours rule for private homes in Japan.
Tokyo publishes one of the clearer examples. Under Article 136 of the Tokyo Metropolitan Ordinance on Securing the Environment and its Appended Table 13, the standards for everyday-life noise are measured at the boundary with adjoining land:
| Area type | 06:00–08:00 | Daytime | Evening | 23:00–06:00 |
|---|---|---|---|---|
| Type 1 (exclusive low-rise residential, etc.) | 40 dB | 45 dB (08:00–19:00) | 40 dB (19:00–23:00) | 40 dB |
| Type 2 (mid/high-rise residential, residential) | 45 dB | 50 dB (08:00–19:00) | 45 dB (19:00–23:00) | 45 dB |
| Type 3 (commercial, quasi-industrial, industrial) | 55 dB | 60 dB (08:00–20:00) | 55 dB (20:00–23:00) | 50 dB |
| Type 4 (designated commercial) | 60 dB | 70 dB (08:00–20:00) | 60 dB (20:00–23:00) | 55 dB |
Two details in Tokyo's guidance are worth knowing: where a school, hospital or care facility sits within roughly 50 metres, the applicable standard tightens by 5 decibels, and children's voices at childcare facilities are excluded from these standards.
Tokyo also uses its ordinance for the late-night restriction the Act delegates. Between 23:00 and 06:00, businesses listed in the ordinance's Appended Table 10 — restaurant businesses, petrol stations, LPG stations, bowling alleys, batting centres, swimming pools, golf driving ranges and larger retail stores — must not generate noise exceeding the standards within their premises. If your problem is the bar downstairs rather than the family upstairs, the equivalent ordinance in your own prefecture is where to look.
Do not assume Tokyo's figures apply where you live. The same structure exists in many prefectures and cities with different numbers, area definitions and covered businesses. The Ministry of the Environment's standing answer to "what are the standards in my area?" is to ask the city, special ward or prefecture directly.
What the National Complaint Data Shows
The Environmental Dispute Coordination Commission publishes an annual national survey of pollution complaints. In FY2024, municipalities received 66,931 complaints in total, of which 47,622 fell within the seven pollution types defined by the Basic Environment Act — and noise accounted for 18,811 cases, 39.5 percent, the largest single category, ahead of air pollution (12,630) and odour (9,156).
The breakdown by cause is where the surprise sits. Of those 18,811 noise complaints, construction work accounted for 7,440 cases (39.6%), industrial machinery 2,883 (15.3%), restaurant and bar businesses 1,144 (6.1%) and karaoke 740. Household sources were small by comparison: 602 cases for general household life, 459 for household equipment and 241 for pets. That is not because neighbours do not complain about each other — it is because those complaints go to the management company or the neighbour's door and never enter a municipal file.
The survey also records outcomes. Of 17,350 noise complaints handled directly, 68.3 percent were resolved mainly through administrative guidance to the source, 15.2 percent mainly by investigating the cause, 5.2 percent mainly by persuading the complainant, and 2.6 percent mainly through discussion between the parties. Punishment appears nowhere in that list. The system is built to change behaviour — and in one case in twenty, the person who gets talked to is the one who complained.
How a Complaint Reaches You
The delivery method tells you how serious the situation already is, and foreign residents frequently misread it.
- A general notice to all residents. A printed sheet in every mailbox about consideration for neighbours is very often aimed at one specific unit. Japanese building management routinely depersonalises a complaint first, to let the household correct itself without a confrontation. If a notice appears shortly after you had friends over, treat it as addressed to you.
- A note on your door or in your postbox. A step up: someone decided the general route did not work, or skipped it.
- A call or visit from the management company. Now it is on the record, and a second call will be added to it.
- A knock from the neighbour. Rare in Japanese apartment buildings, and usually means the person is either very upset or very reasonable. Both are worth talking to.
- Police at the door. Most common late at night. Officers will normally ask you to reduce the noise and leave.
How to Respond in the First 48 Hours
The most damaging response is silence. A household that does not respond looks like a household that will not change, and that perception is what turns a note into a file, and a file into a lease problem.
Acknowledge the same day
Phone the management company back that day, or tell the neighbour directly that you received the message and are taking it seriously. Acknowledgement is not admission, and in Japanese practice it does most of the de-escalation on its own.
Do not argue about decibels
Arguing that a sound is objectively quiet is the most reliable way to make things worse. Environmental figures are policy targets, and an ordinance standard is enforced by the municipality, not by you or your neighbour. The argument you would be trying to win does not exist.
Ask three factual questions
What kind of sound? At what times? From which direction? Written down, those answers turn "you are noisy" into something you can act on.
Check whether it really is you
Structure-borne sound misleads. A subwoofer, a washing machine on spin, or a chair dragged across a floor travels through the building frame and can appear to come from a different unit or floor. Ask whether other units reported the same thing — a complaint made in good faith can still arrive at the wrong door.
Change one concrete thing, and say what you changed
"I will be careful" is worth little. "We moved the washing machine to weekday mornings, put a rug in the living room and stopped vacuuming after 20:00" is worth a great deal, because it gives the other side something to verify. Report it back through the channel the complaint arrived on.
Keep a short record
Date, channel, what was said, what you changed. If the dispute later reaches the landlord, a conciliation table or a court, the household that can produce a calm chronology is in a very different position from the one that cannot.
Your Lease Is the Real Risk
This is the part most often missed: the exposure from a noise complaint is contractual, not criminal.
The Ministry of Land, Infrastructure, Transport and Tourism publishes a standard residential lease contract, and its March 2018 version is widely used as a model by landlords and management companies. Article 8 paragraph 3 provides that the tenant must not carry out the acts listed in Appended Table 1. Item 4 of that table reads: operating a television, stereo or similar at high volume, or playing a piano or similar instrument. Item 5 covers keeping animals that clearly cause a nuisance to the neighbourhood.
Article 10 paragraph 2 sets out the termination route. Where the tenant breaches an obligation under Article 8, the landlord has demanded performance within a reasonable period, performance does not occur within it, and the breach has reached the point where continuing the contract is regarded as difficult, the landlord may terminate. Three conditions in sequence — the breach, an unheeded formal demand, and a breakdown serious enough that the tenancy cannot reasonably continue. Underneath sits the Civil Code: Article 616 applies Article 594 paragraph 1 to leases, so a lessee must use the property in accordance with the method of use fixed by the contract or by the nature of the thing.
Two cautions. The standard contract is a model form published by a ministry, not legislation — the contract you actually signed may be worded differently and is the document that governs you. And this structure is why the second and third complaints matter far more than the first: one complaint answered promptly rarely goes anywhere, while a pattern of ignored complaints is what builds the record behind a formal demand.
If You Live in a Condominium Building
Buildings sold as individual units are governed by the Act on Building Unit Ownership, which adds a layer whether you own your unit or rent from an owner. Article 6 paragraph 1 provides that a unit owner must not commit an act contrary to the common interests of the unit owners. Article 57 lets the other owners or the management association demand that such an act stop, with litigation requiring a resolution at a general meeting. Article 60 extends this to occupants who are not owners, including tenants: where the obstruction to communal living is serious and no other method will remove it, the owners may, based on a general-meeting resolution, sue for termination of the occupant's contract and surrender of the unit.
These provisions are rarely used and require both a formal resolution and a court judgment. They matter mainly because they explain why a condominium management association documents repeated noise complaints far more carefully than a small private landlord might.
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Consult TreeGlobalPartners →When the Police Are Involved
Calling 110 about a neighbour's noise is common in Japan, and being on the receiving end is unsettling but rarely legally serious. Officers generally treat neighbour noise as a civil matter and confine themselves to asking the household to be quieter.
There is nonetheless a criminal provision worth reading precisely. Article 1 item 14 of the Minor Offences Act covers a person who, without heeding the restraint of a public official, makes an abnormally loud sound with voices, musical instruments, a radio or the like, disturbing the quiet and causing a nuisance to the neighbourhood. The penalty is misdemeanour detention or a petty fine — set by the Penal Code at one day to under thirty days (Article 16) and 1,000 yen to under 10,000 yen (Article 17) respectively.
Two features matter. The offence requires that an official's instruction was given and disregarded, so an officer's first request is effectively the line. And Article 4 of the same Act provides that in applying it, care must be taken not to unduly infringe the rights of the people and it must not be abused for purposes outside its original aim.
If officers come to your door: open it, listen, agree to reduce the noise, and do so immediately. That sequence resolves the overwhelming majority of these visits. For non-emergency police matters, Japan operates the consultation line #9110, which connects to the consultation desk of the prefectural police headquarters covering the area you are calling from; availability outside weekday office hours varies by prefecture.
If It Escalates Beyond the Building
The municipal pollution complaint desk
Every municipality operates a pollution complaint consultation desk, and this is the Ministry of the Environment's standard answer for noise problems. One boundary is worth knowing: the Basic Environment Act defines "pollution" in Article 2 paragraph 3 as damage to health or the living environment caused by air pollution, water pollution, soil contamination, noise, vibration, land subsidence or odour arising from business or other human activities and extending over a considerable range. Whether one household disturbing another meets that threshold is a judgment for the desk, and it varies by case and by municipality.
Civil conciliation at the summary court
The court system's low-cost route is civil conciliation, filed at the summary court. The courts describe it as resolving disputes through discussion and mutual agreement rather than by determining a winner and a loser, and they explicitly list neighbourhood nuisances such as noise and odour among the disputes it handles. A committee of one judge and two conciliation commissioners hears both sides and proposes a settlement; if both agree, the resulting record has the same effect as a final judgment and can be enforced. The courts' own cost illustration is a 100,000 yen money claim, where the filing fee is 1,000 yen for a lawsuit and 500 yen for conciliation.
Civil damages
Article 709 of the Civil Code provides that a person who intentionally or negligently infringes the rights or legally protected interests of another is liable to compensate the resulting damage. Noise claims are brought on this basis. They are evidence-heavy and slow, and they are not a first step; if a dispute has genuinely reached this point, get professional advice rather than working from an article.
If You Are the One Being Disturbed
- Do not knock on the door first. Direct confrontation escalates faster than most foreign residents expect and removes the neutral party you may need later. Go to the management company or the building owner.
- Bring specifics, not adjectives. Dates, times, duration, type of sound. A log kept over two weeks is far more persuasive than a description of how tired you are.
- Expect a general notice first. The management company will usually paper the whole building before naming anyone. That is the system working, not ignoring you.
- Use the municipal desk for business and construction noise. This is where ordinances and the Noise Regulation Act genuinely bite — and where 39.6 percent of all noise complaints already go.
Construction noise: the one area with hard national rules
If the source is a building site, you have more to work with. For designated construction work in designated areas, the framework sets: noise not exceeding 85 decibels at the site boundary; no work between 19:00 and 07:00 in Area 1 (areas requiring particular quiet) or between 22:00 and 06:00 in Area 2; a daily maximum of 10 hours in Area 1 and 14 hours in Area 2; no more than 6 consecutive days; and no work on Sundays or other holidays — with exceptions where emergency work is genuinely required. Contractors must notify the mayor at least 7 days before designated construction work begins, and 30 days before installing a designated facility.
Where a municipality finds the surrounding living environment is being harmed, it can issue an improvement recommendation and then an improvement order. Failing to file the required notification for a designated facility, or violating an order relating to designated construction work, carries a fine of up to 50,000 yen under Article 30; violating an improvement order relating to a designated factory carries imprisonment of up to one year or a fine of up to 100,000 yen under Article 29.
Reductions That Work in Japanese Buildings
Japanese apartment construction transmits impact and low-frequency sound efficiently. A handful of changes address most real complaints.
- Floor impact is the main problem. Footsteps, dropped objects and children running transmit downward through the slab. Rugs, cork mats or joint mats in the main walking areas do more than anything else here.
- Felt pads under every chair and table leg. A dragged chair is a sharp, structure-borne event and one of the most frequently reported sounds in Japanese buildings.
- Timing beats volume for appliances. Tokyo's guidance material puts washing machines at roughly 64 to 72 decibels and air conditioning units at roughly 41 to 59 decibels. Running them between 08:00 and 19:00 avoids the strictest ordinance bands almost everywhere.
- Move sources away from party walls. Speakers, pianos and air conditioning outdoor units placed against a neighbouring unit couple directly into the structure.
- Bass is the sound that travels. Turning the volume down helps less than turning the bass down.
- Say something before, not after. A word to your immediate neighbours before a gathering, or when you move in with an instrument, converts a future complaint into a future accommodation.
Language Help and Where to Ask
Handling a dispute in a second language is the hardest part of this for most foreign residents. Several public channels operate in multiple languages.
- Your municipality's one-stop consultation desk for foreign residents. Local governments run these with support from the national grant programme for developing the environment for accepting foreign residents, administered by the Immigration Services Agency. Languages, hours and location vary by municipality.
- Foreign Residents Support Center (FRESC). Telephone 0570-011000, or 03-5363-3013 from IP phones and overseas. Open 09:00 to 17:00, closed Saturdays, Sundays, public holidays and the year-end and New Year period. Covers living in Japan, employment, housing and residence status; available languages depend on the service.
- Japan Legal Support Center (Houterasu) multilingual information service. Telephone 0570-078377, or 050-3754-5430 from IP phones and prepaid mobiles, weekdays 09:00 to 17:00. It runs as a three-way call between you, an interpreter and a staff member, and provides free information on Japanese legal systems and the appropriate consultation desk. The service is free; you pay the call charges.
- Your municipality's environment or pollution section. The place to confirm the ordinance standards and designated areas that actually apply at your address — a question only your local authority can answer.
Frequently Asked Questions
For Foreign Workers Looking to Build Their Career in Japan
TreeGlobalPartners' service is completely free for foreign workers — no fees of any kind, no hidden charges. We support your appropriate job change or new employment in Japan with verified employers. Visa applications, status changes, and registered support procedures are handled through our group's affiliated Tree Administrative Scrivener Corporation, giving you a true one-stop service across the group.
Consult TreeGlobalPartners →Disclaimer: Information in this article is accurate as of July 2026 and reflects the Noise Regulation Act, the Basic Environment Act, the Minor Offences Act, the Penal Code, the Civil Code, the Act on Building Unit Ownership and the Immigration Control and Refugee Recognition Act as published on the national statute database; materials published by the Ministry of the Environment; the standard residential lease contract published by the Ministry of Land, Infrastructure, Transport and Tourism; the FY2024 pollution complaint survey published by the Environmental Dispute Coordination Commission; guidance on civil conciliation published by the courts; and the Tokyo Metropolitan Ordinance on Securing the Environment as explained by the Tokyo Metropolitan Government. Ordinance standards, designated areas, covered businesses, consultation desks and contract terms differ by prefecture, municipality, building and landlord, and are revised from time to time. Always confirm the rules that apply to your own address with your local municipality, and read your own lease. This article is general information only and does not constitute legal advice or advice on any individual dispute.