Final answer:
The correct term for a real estate brokerage agency's location where business is regularly conducted is a 'Branch office'. It is one of the official locations separate from the main office.
Step-by-step explanation:
The term used to describe a location where business is regularly conducted or advertised for public contact with a real estate brokerage agency is a Branch office. This terminology is specific to the real estate industry and is used to refer to an office that is separate from the real estate firm's main office but is still an official place where transactions are handled and where clients can obtain services. The Main office would be the primary business location, the Satellite office could imply a smaller, less formal location, and a Designated office might typically refer to a specific office assigned for a particular use within a firm.