Taxi businesses have historically fallen under the Sui Generis use class. Planning is usually required to set up a new Private Hire Operating Centre, Minicab or Taxi Office, or for change of use from another type of business.
Evidence of the appropriate planning permission is usually required as part of a Private Hire Operator Licence application. Transport for London (TfL) for example, state they require “Evidence of planning permission for every proposed operating centre(s)”
Planning Permission, often via a Change of Use application is often required.
Example Case Study: Use of dwelling house as taxi company operating centre