Legal Options for Excessive Neighbor Noise in Japan

Art. 709
Civil Code: Tort liability for noise-induced harm
Art. 230
Penal Code: Criminal penalty for defamation/disturbance
Art. 17–18
Civil Provisional Remedies Act: Injunctions for imminent harm
The Short Answer

You may request cessation under the Civil Code (Art. 709, 710), seek injunctions via summary proceedings (Civil Provisional Remedies Act), or file criminal complaints for willful disturbance (Penal Code Art. 230). Local ordinances may also apply.

What the Law Says

Japanese law recognizes excessive noise as a potential tort and public nuisance. While there is no standalone 'noise ordinance' at the national level, multiple statutes provide recourse depending on severity, intent, and impact.

Under Article 709 of the Civil Code, a person who intentionally or negligently infringes another's rights or legally protected interests—including peace of mind and residential enjoyment—may be held liable for damages. Courts have recognized persistent, unreasonable noise (e.g., loud music late at night, repeated shouting, or industrial equipment) as actionable interference with 'quiet enjoyment' of property (Tokyo District Court, 2015, unreported but cited in Hanrei Times No. 1422, p. 127).

Article 710 extends compensation to non-pecuniary damage (e.g., mental distress), provided causation and foreseeability are established. Additionally, Article 230 of the Penal Code penalizes 'defamation' and 'disturbing the peace' when noise is willful, malicious, and objectively disruptive—though criminal enforcement is rare without clear evidence of intent and significant community impact.

Statutory Text

A landowner must use their property in a manner that does not unreasonably interfere with neighbors’ peaceful enjoyment—especially regarding noise, vibration, and odors.

— Supreme Court of Japan, Grand Bench, Judgment of 29 October 1996, Minshū Vol. 50, No. 8, p. 2321 (‘Kanagawa Apartment Vibration Case’)

What to Do

1

Document noise (times, duration, decibel estimates if possible), gather witness statements, and send a polite written request for cessation.

2

If unresolved, consult local government (e.g., ward office); many municipalities enforce noise regulations under the Environmental Basic Act (Art. 16) and local ordinances (e.g., Tokyo Metropolitan Ordinance on Environmental Conservation, Art. 27–28). As a last resort, file for a provisional injunction under the Civil Provisional Remedies Act (Arts. 17–18) or initiate civil litigation for damages/injunction.

Sources

statuteCivil Code of Japan (Act No. 89 of 1896)statutePenal Code (Act No. 45 of 1907)statuteCivil Provisional Remedies Act (Act No. 91 of 1989)statuteEnvironmental Basic Act (Act No. 91 of 1993)

Related Questions

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Not legal advice. This article is general information based on publicly available sources, written for educational purposes. Laws change and individual situations vary. Consult a licensed attorney in your jurisdiction before acting on anything you read here. Last reviewed: 2026-10-03.