On this occasion, to compensate for the lack of capacity in the first plan for Wakakusa National Athletic Meet in 1984 and 'Nara Silk Road Expo' in 1988, the annex was began to be operated in 1970 using the higher storeys of Kintetsu Nara Station Building which was planned to be built at the same period, however, it decreased its necessity dramatically due to the new building of steel-reinforced concrete built in 1984 in Yoshino-tsukuri style (an architectural technique for building on a sheer cliff) by Japan National Railways, which was embedded by digging the south slope of rising ground where the main building stood, and was eventually closed in 1991 although running for a while after the closing of 'Nara Silk Road Expo.'
この際、当初計画に対する収容力の不足を補うため、同時期に建設が計画された近鉄奈良駅ビルの上層階を別館として1970年に営業開始したが、これは1984年のわかくさ国民体育大会、および1988年の「なら・シルクロード博覧会」の開催を控え、1984年に本館の建つ高台の南側傾斜面を削り込んで埋め込む形で鉄筋コンクリート造りの新館を国鉄の設計による吉野造りで建設したことでその必要性が大幅に低下し、「なら・シルクロード博覧会」閉幕後もしばらくは営業を続けたが、結局1991年にこの別館は閉鎖されている。