Choose a service boundary patients can understand
Write down which patients the initial offer is designed to support and which practical arrangements define that scope. A remote appointment can be accessed broadly, but examination, testing, and follow-up may depend on specific locations and partner availability.
Use the ONS built-up-area source to explain the guide's population reference. Keep that separate from a postcode list, travel area, or administrative boundary chosen for operations. These are different geographies and should not be presented as interchangeable. ONS: built-up areas, Census 2021
Ask prospective users how they describe their location and where they would realistically attend a necessary appointment. Do not assume the official statistical label is the phrase everyone uses in ordinary life. The website can remain accurate while giving practical directions in familiar language.
Document the first catchment and the evidence behind it. If the business later serves a wider Bristol-area audience, report that scope separately. A clear boundary makes it easier to inspect capacity, communicate limits, and decide what new arrangements are needed before expanding.