‘Sumstock’ Certification for Existing Homes

Although the purchase of older, existing homes is becoming a more common choice amongst Japanese buyers, there still remain some concerns over the earthquake resistance and potential defects in an older home. In 2008, 10 of Japan’s major home builders introduced a certification system called ’Sumstock’ to help alleviate these concerns and provide buyers with some assurance of safety.

The 10 hom...


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