#Japan #Tokyo #solar panels #Tokyo Eco Builders #Ichi-jō Construction

Ichi-jō Construction Shines at the Tokyo Eco Builders Awards 2023

In an impressive display of commitment to sustainable construction, Ichi-jō Construction Co., Ltd., led by President Naoki Iwata from its headquarters in Koto, Tokyo, has clinched five prestigious awards at the Tokyo Eco Builders Award 2023. Among these accolades is the coveted Leading Company Award in the overall category, highlighting the company's exemplary contributions to environmentally friendly architectural practices.

The Tokyo Eco Builders Award is an initiative by the Tokyo Metropolitan Government, designed to recognize businesses that actively promote higher environmental performance in construction. This award aligns with Tokyo's plan to implement the Building Environmental Report System in April 2025, aiming to enforce and encourage the installation of energy-saving features and renewable energy systems, particularly in mid-sized buildings. By surpassing these standards, Ichi-jō Construction not only exemplifies leadership in enhancing overall environmental performance but also facilitates public information dissemination about sustainable building practices.

Following last year's achievements, Ichi-jō Construction continued to excel, earning awards in both the High Standard Award categories for thermal insulation and energy-saving performance as well as renewable energy equipment installation. The recent introduction of the High Standard+ Award further recognizes the company's outstanding initiatives, such as successfully internalizing the production of integrated rooftop solar panels and providing comprehensive disaster-resilient housing.

Award Categories

• - Leading Company Award (Overall Category)
• - High Standard Award (Thermal Insulation and Energy-Saving Performance)
• - High Standard Award (Renewable Energy Equipment Installation)
• - High Standard+ Award (Thermal Insulation and Energy-Saving Performance)
• - High Standard+ Award (Renewable Energy Equipment Installation)

Ichi-jō Construction continues to advocate for high-performance housing to significantly contribute to Japan's targets on energy efficiency and renewable energy deployment, supporting the nation’s aspirations for carbon neutrality.

Noteworthy Initiatives

Leading Company Award (Overall Category)

One of the most significant efforts recognized is the internal production of integrated rooftop solar panels. This innovative move has drastically reduced costs associated with solar power systems. Using a unique business model, Ichi-jō provides solar panels coupled with storage systems at prices affordable enough to ensure that initial investments can be recouped through electricity sales and self-consumption benefits during the feed-in tariff (FIT) period. This strategic approach not only enables the wider adoption of solar power but also alleviates the financial burden on consumers contemplating renewable energy solutions.


Ichi-jō’s proprietary integrated rooftop solar panel produced at its group factory.

Comprehensive Disaster-Resilient Housing

Additionally, Ichi-jō Construction is at the forefront of providing Comprehensive Disaster-Resilient Housing. Each home is designed to meet seismic grade 3, ensuring sturdy structures capable of withstanding earthquakes. Furthermore, innovative technologies are applied to prevent flooding, enhancing safety and comfort for residents. This initiative aims to provide Tokyo's citizens with homes that allow them to live without the fear of environmental hazards.


Examining comprehensive disaster-resilient housing under controlled rainfall conditions.

In conclusion, Ichi-jō Construction's recent recognitions at the Tokyo Eco Builders Award not only honor their past efforts but also set a foundation for continued excellence in sustainable building practices. Their innovative approaches and commitment to environmental efficiency position them as leaders in the construction industry, paving the way for a more eco-conscious future in Japan.