A first-class registered architect responsible for design — from form and structure through the statutory permit applications under the Building Standards Act. He bridges design and the site, holding quality, schedule and cost in single accountability. On this site he supervises articles on structure, construction methods and regulations.
Areas of expertise
- Design & structure
- Building code & permits
- Method selection
Qualification
1st-class Architect
Articles supervised（23）
- The 2025 Building Standards reform: how the "4-go exemption" change affects houses
- Climate-appropriate design for Japan — meeting energy class 6 (top tier)
- Why are Japanese construction details world-class? Over 50 items reviewed in design phase
- The single-story home — why it's chosen now, and how to design it without regret
- What does hotel construction cost per tsubo? 5 key differences from residential
- Permits and design points for building or converting a hotel
- Old folk-house renovation cost and pitfalls — restoring 100+ year-old kominka
- What to check when buying land in Japan? 12 must-verify points a pro looks at
- Landscape ordinances and prestige districts — what to know before building in Kyoto, Ashiya or Kitano
- Non-rebuildable lots — the access rule, remedies, and a pre-purchase checklist
- Office building construction cost per tsubo, and what to plan for
- Osaka FAR (floor-area-ratio) regulations: limits by zoning and the practical caveats
- Osaka construction permit flow: from confirmation application to completion inspection
- How much does an RC (concrete) house cost vs. wood in Japan? 2026 comparison
- What Japanese building regulations should you know? 7 core dimensions
- Seismic-resistant, damped, or isolated? How to pick for luxury homes
- One-story vs two-story: a side-by-side on cost, daily life and the long term
- How long do Japanese construction projects take? Schedules by building type
- The two-household / multigenerational home — types, cost, tax and design
- The urban 3-story RC residence — winning space on a narrow Osaka lot
- Japanese villa construction case studies — Karuizawa, Awaji, Kita-Karuizawa per-tsubo
- Why do luxury Japanese builds take 1-2 years? The real reasons for long construction timelines
- Are ZEH (net-zero energy) homes really efficient? Solar and subsidies