If the applicant for a real estate broker’s license maintains more than one place of business within the State he shall apply for and procure an additional license for each branch office so maintained by him. Every such application shall state the name of the person and the location of the place or places of business for which such license is desired. The commissioner may determine whether or not a real estate broker is doing a real estate brokerage business at or from any particular location which requires him to have a branch office license.