As Ito, who was often in conflict with him on political matters, lived near Okuma's second residence in Oiso, Okuma rarely used the house, and so he settled into another second residence in Kozu, vacating his residence in Oiso just 10 years later.
様々な政治上の軋轢があった相手との近い距離のためか、大磯別邸はあまり使用されず、明治40年（1907年）には別邸を新たに国府津に構え、わずか10年で大磯を引き払っている。