In 2022, around ** percent of housing units in Japan were estimated not to meet thermal insulation standards. Around ** percent of dwellings met the 2016 energy conservation standards. The number of housing units in Japan reached **** million in the same year.
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MLIT (Japan). (March 12, 2025). Estimated share of dwelling units meeting thermal insulation performance standards in Japan in 2022 [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 24, 2026, from /statistics/1402814/japan-housing-stock-breakdown-by-insulation-performance/
MLIT (Japan). "Estimated share of dwelling units meeting thermal insulation performance standards in Japan in 2022." Chart. March 12, 2025. ÌÇÐÄÆÆ½â°æ. Accessed July 24, 2026. /statistics/1402814/japan-housing-stock-breakdown-by-insulation-performance/
MLIT (Japan). (2025). Estimated share of dwelling units meeting thermal insulation performance standards in Japan in 2022. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 24, 2026. /statistics/1402814/japan-housing-stock-breakdown-by-insulation-performance/
MLIT (Japan). "Estimated Share of Dwelling Units Meeting Thermal Insulation Performance Standards in Japan in 2022." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 12 Mar 2025, /statistics/1402814/japan-housing-stock-breakdown-by-insulation-performance/
MLIT (Japan), Estimated share of dwelling units meeting thermal insulation performance standards in Japan in 2022 ÌÇÐÄÆÆ½â°æ, /statistics/1402814/japan-housing-stock-breakdown-by-insulation-performance/ (last visited July 24, 2026)
Estimated share of dwelling units meeting thermal insulation performance standards in Japan in 2022 [Graph], MLIT (Japan), March 12, 2025. [Online]. Available: /statistics/1402814/japan-housing-stock-breakdown-by-insulation-performance/