LEGAL
Japan Real Estate Due Diligence
The document, legal, physical, and practical checks overseas buyers should complete before signing for a Japanese house or akiya.
By Ideal Homes Editorial Team / Updated 22 Jul 2026
Due diligence is the real product
For foreign buyers, the valuable work happens before the contract: turning a Japanese listing into verified buyer facts.
Core checks
- Seller identity and authority
- Registry and ownership rights
- Mortgages, liens, leases, or occupiers
- Boundaries, survey, encroachments, and private roads
- Road category and rebuildability
- Zoning and legal restrictions
- Water, sewer, gas, electricity, and internet
- Hazard maps and evacuation context
- Building condition and renovation feasibility
- Taxes, management fees, and local obligations
Important Matters Explanation
In brokered transactions, the Important Matters Explanation is central. It should not be treated as paperwork. It is where legal facts and buyer risks should be explained before signing.
Red flags
Be cautious with vague access, unclear seller authority, unknown boundaries, no utility status, old photos, no interior photos, unrealistic renovation claims, or pressure to sign before documents are reviewed.
Related questions
Can I rely on the listing description?
No. Listing text is only a starting point. Key facts should be checked against source documents and professional review.
What is the most important check before buying?
Road/rebuildability, ownership, boundaries, utilities, and building condition are among the most important early filters.
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