Taking this opportunity, Viscount Mishima presented the villa to the Imperial Family in 1904 and it came to be called 'Shiobara Goyotei' and used mainly for summer exodus of the Imperial Family.
これを契機として1904年、三島子爵家は別荘を献上して「塩原御用邸」となり、主に避暑のため愛用された。