International build cost · JPY
In Japan construction cost depends heavily on the structure: wooden homes run about ¥200,000 per square metre, steel-frame about ¥300,000 and reinforced concrete ¥280,000–350,000. Seismic design is mandatory.
Standard build
JPY 200,000–JPY 340,000
per m², excluding land · standard finish
A 200 m² home
≈ JPY 40,000,000–JPY 68,000,000
indicative construction cost only
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Build-cost baselines are indicative 2025 figures you should edit to match local quotes. This is a planning estimate, not a quotation.
Your estimate
Indicative cost to build in Japan with a timber / wood frame structure at a standard finish.
Timber / wood frame · Standard finish
1 JPY ≈ 0.0062 USD
For diaspora funding routed through Nepal
250 m² × JPY 247,000/m²
Baselines are 2025 planning figures, not quotations, and exclude land, demolition and major site infrastructure. Confirm rates with local builders and a quantity surveyor before committing.
Where the budget goes
Timber / wood frame
Lightweight, fast, lowest embodied carbon. Common in the US, Canada, Japan, Scandinavia and Australian regional builds.
Approvals in Japan
Kenchiku kakunin (building confirmation) under the Building Standards Act; strict seismic code.
General guidance only — confirm with your local authority and a licensed professional.
Typical cost by structure
Indicative 2025–2026 planning bands from public cost guides, not quotations. Use the calculator above with a real local quote for your project.
Common structures
Traditional wood framing is most common and economical; steel and reinforced concrete are chosen for larger, urban or high-earthquake-resistance homes.
Locally common: Timber / wood frame, Light-gauge steel frame, Reinforced concrete (RCC) frame, Hybrid (timber + steel + concrete).
Approvals in Japan
Kenchiku kakunin (building confirmation) under the Building Standards Act; strict seismic code.
General guidance only — confirm with your local authority and a licensed professional.
Frequently asked questions
A 120 m² wooden home is roughly ¥24–29 million; the same size in steel or reinforced concrete costs more. Costs are usually quoted per tsubo (~3.3 m²) — about ¥1 million per tsubo for a standard timber house.
Mandatory seismic engineering and the material itself drive the difference: wood is lightest and cheapest, steel mid-range, and reinforced concrete the most expensive but most rigid.
No. Land is often the largest single cost in Japan, especially in Tokyo and Osaka, and is entirely separate from the construction figure.
Go deeper
Weigh timber vs steel vs concrete, check the embodied carbon, or convert your budget across currencies with the related free tools.