令和６年に国立競技場２個分の屋上緑化が創出～全国屋上・壁面緑化施工実績調査の結果～

Urban Farm DB summary

According to this December 12, 2025 announcement by Japan's Ministry of Land, Infrastructure, Transport and Tourism, approximately 14.5 hectares of green roofs (equivalent to about two National Stadiums) and 4.6 hectares of green walls were newly installed nationwide in FY2024. Cumulative installations from FY2000 through FY2024 (25 years) reached about 633 hectares of green roofs and 131 hectares of green walls.

Only numbers and their conditions are stored, as structured data — never the source's own sentences. Metric and condition names stay in English, as coded.

• 14.5 ha

  annual installed area(rooftop greening)

  Design

  region

  Japan

  year

  FY2024

• 633 ha

  cumulative installed area(rooftop greening)

  Design

  region

  Japan

  year

  FY2000-FY2024

• 4.6 ha

  annual installed area(wall greening)

  Design

  region

  Japan

  year

  FY2024

• 131 ha

  cumulative installed area(wall greening)

  Design

  region

  Japan

  year

  FY2000-FY2024

Direction of conclusions

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