How to Find a Structural Engineer for an Akiya in Japan
Need a structural engineer for your akiya? Learn when to hire one, how much it costs, and how Old Houses Japan helps connect you with trusted professionals.

How to Find a Structural Engineer for an Akiya in Japan
Buying an akiya—Japan’s vacant, often aging homes—can be an exciting and rewarding investment. But before you commit to renovations or even finalize your purchase, it’s essential to understand whether the structure is sound.
That’s where a structural engineer comes in. These professionals evaluate the bones of the house, identifying issues like foundation shifts, termite damage, sagging beams, or potential seismic risks.
But for international buyers, finding and working with a structural engineer in Japan can feel overwhelming—especially if you don’t speak Japanese. Here’s how to navigate the process and get the professional insight you need before taking the leap.

1. What Does a Structural Engineer Do in Japan?
A structural engineer (構造設計士 / kōzō sekkeishi) evaluates the strength, stability, and safety of buildings. In the context of akiya, they may:
- Inspect the foundation, framing, and load-bearing walls
- Check for signs of water, termite, or earthquake damage
- Assess whether the home meets current building codes
- Determine if renovations or expansions are structurally possible
- Produce structural reports or calculations for permits
They work closely with architects, builders, and renovation teams to plan safe, legal upgrades.
2. Do You Always Need One for an Akiya?
Not always—but it's highly recommended if:
- The home is visibly leaning, sagging, or cracking
- You’re planning a major renovation or rebuild
- You want to convert the use of the property (e.g., into a business)
- The property is located in a seismic or snow zone
- You’re applying for a renovation subsidy that requires proof of structural integrity
Inexpensive homes may come with expensive hidden issues—so spending ¥100,000–¥200,000 on an inspection could save you millions in repair costs later.
3. Where to Find a Qualified Structural Engineer
✅ Through Your Architect or Renovation Firm
Most architects in Japan work closely with structural engineers. If you’re already working with a renovation partner, ask for their in-house or recommended engineer.
✅ Prefectural Architect Associations
Each prefecture has a kenchikushi association (建築士会) that can refer you to licensed professionals.
✅ Local City Hall or Akiya Bank Coordinators
City officials sometimes maintain a list of trusted professionals in the region, especially if they partner with akiya revitalization programs.
✅ Word of Mouth or Foreigner-Friendly Platforms
Old Houses Japan maintains a vetted network of bilingual or foreigner-friendly structural engineers across the country.
4. What to Ask Before Hiring
When reaching out to a structural engineer (or their firm), ask:
- Do you have experience working with older wooden homes (kominka or akiya)?
- Can you provide a written inspection report in Japanese (or English)?
- How much do you charge for a site visit and assessment?
- Are you licensed and insured?
- Can you coordinate with city hall for permits or subsidy documentation?
📌 If you don’t speak Japanese, ask if they have a bilingual staff member—or work through a liaison like Old Houses Japan.
5. Cost of Hiring a Structural Engineer in Japan
Prices vary depending on location, home size, and scope, but here’s a general range:
- Basic inspection: ¥80,000–¥150,000
- Written report for subsidy or legal purposes: +¥50,000
- Full structural plan or renovation drawings: ¥200,000+
In remote areas, travel fees may apply—but you can often bundle this with other services, such as architectural planning or renovation design.
6. How Old Houses Japan Helps
We assist buyers by:
- Reviewing listings and flagging properties that may require structural review
- Recommending bilingual or foreigner-friendly structural engineers
- Scheduling inspections before you buy—or after closing if needed
- Helping interpret reports and plan renovations based on findings
- Coordinating engineer input for subsidy or seismic retrofit applications
Whether you’re planning a minor fix or a full-scale restoration, we help you understand exactly what your home needs to stand strong for years to come.
Final Thoughts
Akiya homes can offer charm, character, and incredible value—but only if they’re structurally sound. A qualified structural engineer gives you peace of mind, ensures your investment is protected, and makes sure your renovation plans won’t hit unexpected snags.
Need help finding a structural engineer for your property? Reach out to Old Houses Japan for support, recommendations, and expert guidance every step of the way.
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