Koban-shi were collectively called koban za and they had facilities around the official residence of kin-za in Hongoku-cho where the head family of the Goto family lived and they were under the control of the family.
小判師達は小判座（こばんざ）と総称され、後藤宗家が居住していた本石町の金座役宅の周辺に施設を構えてその支配下に置かれていた。