However, in order to prevent tightening of control and decentralization of koban-shi, in 1698 casting facilities outside the residence were abolished and casting facilities were located on the grounds of the official residence of kin-za (the residence of the head family of the Goto family) only where casting of gold coins was performed thereafter.
だが、管理の厳格化と小判師の分散化を防止するために元禄11年（1698年）に邸外の鋳造施設を廃止して金座役宅（後藤宗家邸）の敷地内に鋳造施設を設置して、以後江戸での金貨鋳造はここでのみ行うことになった。