In the fiscal year 2023, newly built zero energy houses (ZEH) accounted for ** percent of new custom-built detached houses that were constructed by home builders in Japan. The share was much lower for ZEH built by building contractors. Building contractors often are small, local companies, and customers have a high degree of freedom to design the house themselves. In contrast, house builders are bigger companies that usually have sales offices nationwide. Here, customers have less freedom in designing the home themselves as they choose from standard equipment and floor plans.
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SII. (December 25, 2024). Share of zero energy houses (ZEH) in new custom-built detached houses in Japan from fiscal year 2016 to 2023, by constructor [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 15, 2026, from /statistics/1322049/japan-share-newly-built-zeh-by-constructor/
SII. "Share of zero energy houses (ZEH) in new custom-built detached houses in Japan from fiscal year 2016 to 2023, by constructor." Chart. December 25, 2024. ÌÇÐÄÆƽâ°æ. Accessed July 15, 2026. /statistics/1322049/japan-share-newly-built-zeh-by-constructor/
SII. (2024). Share of zero energy houses (ZEH) in new custom-built detached houses in Japan from fiscal year 2016 to 2023, by constructor. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 15, 2026. /statistics/1322049/japan-share-newly-built-zeh-by-constructor/
SII. "Share of Zero Energy Houses (Zeh) in New Custom-built Detached Houses in Japan from Fiscal Year 2016 to 2023, by Constructor." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 25 Dec 2024, /statistics/1322049/japan-share-newly-built-zeh-by-constructor/
SII, Share of zero energy houses (ZEH) in new custom-built detached houses in Japan from fiscal year 2016 to 2023, by constructor ÌÇÐÄÆƽâ°æ, /statistics/1322049/japan-share-newly-built-zeh-by-constructor/ (last visited July 15, 2026)
Share of zero energy houses (ZEH) in new custom-built detached houses in Japan from fiscal year 2016 to 2023, by constructor [Graph], SII, December 25, 2024. [Online]. Available: /statistics/1322049/japan-share-newly-built-zeh-by-constructor/
