Refers to a local office or branch of an organization, such as a government agency, company, or association.
I got a copy of my residence certificate at the city hall branch office.
The city set up a new branch office in this district.
He works at a branch office of the city hall.
I visited the nearby branch office to complete the procedures.
出張所 is a smaller, often temporary or regional field office, while 支所 is a more permanent local branch of an organization.
支所 is a branch office typically used for government or public institutions, while 分室 refers to a smaller detached room or office within a larger organization.
本所 is the main office or headquarters of an organization, while 支所 is a smaller branch office under it.
branch detention house
Compound of 支 (branch, support) and 所 (place, office).