Yamato Juken Continues to Provide Highly Energy-Efficient Homes, Winning the 'House of the Year' Award for 16 Consecutive Terms

Yamato Juken Co., Ltd. (Headquarters: Kobe, Hyogo; Representative Director: Yoshiki Kawamoto; hereinafter "Yamato Juken"), a custom home builder, has been awarded the House of the Year for the 16th consecutive term.

■ 16 Consecutive Years of Recognition

Yamato Juken, which specializes in highly energy-efficient custom homes, received the Special Excellence Award at the House of the Year 2025. Since its first entry in 2009, the company has been recognized for 16 consecutive terms as a builder of "excellent homes that contribute to energy conservation and CO2 reduction." Furthermore, the company has won the Grand Prize four times—the most in the award's history—including a record-breaking two consecutive years in fiscal 2023 and 2024.

■ Award-Winning Product: Enege AF+

The award-winning "Enege AF+" achieves an extremely high insulation performance with a UA value of 0.28. It exceeds HEAT20/G2 grade and insulation grade 6 standards, featuring high airtightness with a C-value of 0.5 or less. It is equipped with the "Air Flow System" for indoor air circulation and the "AQUA Sitter," a ceiling-embedded humidification unit developed in collaboration with Panasonic. This system allows for temperature and humidity control throughout the entire house using only two air conditioners. The company was also highly evaluated for its contributions to carbon neutrality, including proposals for "energy self-sufficient and resilient homes" using solar power, V2H, and storage batteries, as well as its commitment to off-grid housing, eco-friendly building materials, and waste reduction during construction.

■ About the House of the Year Award

Organized by the Japan Center for Area Development, this program recognizes excellent homes that contribute to total energy conservation and CO2 reduction by evaluating both the building structure and equipment as a set. Evaluation criteria include the energy-saving performance of the building envelope and equipment, the adoption of various energy-saving methods, health and comfort, and efforts to promote energy-efficient housing. (https://www.jcadr.org/hoty/)

■ Commitment as an Award-Winning Company

Yamato Juken’s mission is to "bring Japanese housing up to global standards" by promoting only highly airtight, highly insulated, and energy-efficient homes. For many years, the company has pursued the creation of healthy, comfortable homes with minimal temperature differences between rooms—a standard taken for granted in Europe and North America—to make Japan's living environment safer and more secure. The company believes that promoting such energy-efficient homes leads to a reduction in CO2 emissions and contributes to the improvement of the global environment. By winning this award for 16 consecutive terms, the company reaffirms its commitment to fulfilling this mission as a leader in the promotion of energy-efficient housing.

＜Company Overview＞

Company Name: Yamato Juken Co., Ltd. (URL: https://www.yamatojk.co.jp/)