世界の建築を、ミニマムエネルギーで快適な、100年建築に
U100は、「Under 100W/㎡」(1平方メートル当りの空調熱負荷を100W以下に)と、100年保つ建築の「Up to 100 Years」を意味しています。建築・不動産業界における2050年の環境目標と、サーキュラーエコノミーの実現を目指す企業・個人のイニシアチブです。


The U100 Initiative, based in Japan, is an ambitious initiative in the architecture and real estate industry aimed at achieving environmental goals by 2050 and realizing a circular economy. The U100 stands for two main principles: 'Under 100W/m²' to maintain air conditioning and cooling loads under 100 watts per square meter, and 'Up to 100 Years' for a building's lifetime.
Join us!
Updates
【4/23 無料公開セミナー】欧州におけるサステナビリティ実装の現在地
【みんなの研究所「U100 Initiative」始動】
【イベントレポート:U100 Workshop 2025.10】
【インタビュー動画:ドイツ建築・都市空間研究所】
What we do
U100 Workshop
定期的に行うワークショップ。参加者が自ら発見する事に主眼を置いた、アクティブラーニングの場。
U100 Summit
ドイツで定期開催される視察・現地ミーティング。海外の事例を体験しながらのインプットの場。
U100 Community
日々の悩みや思いをシェアすることで互いに成長できる場。多様な企業同士の交流を加速する環境。
Upcoming Event
スウェーデンヒルズに学ぶ「100年住み継ぐ」まちづくり哲学

スウェーデンヒルズに学ぶ「100年住み継ぐ」まちづくり哲学
スウェーデンハウス
【正会員及び限定20人】
2026/04/17
Study TourDiscussion
Hokkaido
Sustainability through Reduction: The 22:26 Principle in European Architecture

Sustainability through Reduction: The 22:26 Principle in European Architecture
EU Decides on Emergency Tax Cuts and Renewable Acceleration for Second Energy Crisis

EU Decides on Emergency Tax Cuts and Renewable Acceleration for Second Energy Crisis
German EV Boom and Implications for Japanese Real Estate

German EV Boom and Implications for Japanese Real Estate
German Government Launches New Funding Round for Construction Innovation

German Government Launches New Funding Round for Construction Innovation
Low Carbon Building Initiative Expands to European Renovations

Low Carbon Building Initiative Expands to European Renovations
German Manufacturing Future Shaped by AI Implementation

German Manufacturing Future Shaped by AI Implementation
Europe's 'Solar Boom' Accelerated by Iran Situation and Energy Crisis

Europe's 'Solar Boom' Accelerated by Iran Situation and Energy Crisis
EU Decides on Emergency Tax Cuts and Renewable Acceleration for Second Energy Crisis

EU Decides on Emergency Tax Cuts and Renewable Acceleration for Second Energy Crisis
Ultimate Energy Security: The Power of Zero-Energy Buildings and Districts

Ultimate Energy Security: The Power of Zero-Energy Buildings and Districts
From Window to Resource: Circular Glass Utilization in European Architecture

From Window to Resource: Circular Glass Utilization in European Architecture













