Neighbor disputes include boundary issues (cadastral determination system, Real Property Registration Act Art. 123+), encroaching branches (2023 Civil Code reform Art. 233 now allows self-help after notice), sunlight rights (nuisance threshold theory; Building Standards Act Art. 56-2 shadow regulations), and noise (environmental standards: 55dB daytime, 45dB nighttime for residential areas). Remedies include injunctions and damages.
Real Estate- View allLast updated: 2026-03-13
Neighbor Land Disputes in Japan: Boundaries, Encroachment, and Noise
Key Takeaways
- ✓The 2023 reform allows landowners to cut overhanging branches themselves
- ✓The boundary determination system can resolve disputes without litigation
- ✓Sunlight obstruction claims are upheld when exceeding tolerable limits
- ✓Noise problems can be addressed through both injunctions and damages
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This article provides general legal information and does not constitute legal advice. For specific legal issues, please consult with a qualified attorney.
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