Scoping by function rather than by proximity
An administration floor two hundred metres from a clinical area is an office. It has workstations, meeting rooms, a kitchen and amenities, and it should be scoped as such with ordinary frequencies and methods. Elevating it to a clinical specification because of its address costs money that would be better spent on the areas where the specification matters.
The exception is any point where the two genuinely meet: a corridor connecting to clinical space, a staff change area, a shared amenity used by clinical staff. Those transition points may warrant a different treatment, and identifying them individually is more useful than applying a blanket standard to an entire building on the basis of what is nearby. Naming them individually also gives the client somewhere to concentrate the higher specification if they want one.
