Machi-bugyo adopted a policy to restrain the expansion of the town but it was in fact the case that until then end of the Edo period, a situation continued in which the city's expansion preceded any ratification by the machi-bugyo or the yoriki (police sergeants) who were responsible for assessing the propriety of new town planning.
町奉行は町の拡大を抑制する方針を採ったが、実際には都市の拡大が先行して町奉行及び新しい町割の是非を審査する新地掛の与力がこれを追認する状況が幕末まで続いた。