Where multi-site variation actually comes from
Arrangements accumulate rather than being designed. One site was set up by a manager who wanted detailed reporting; another by someone who wanted the lowest price; a third inherited an arrangement from a previous occupier. Each decision was reasonable in isolation, and the result is a portfolio where the same organisation receives five different services at five different levels for reasons nobody can now reconstruct.
The cost is not only inconsistency of result. It is also that nothing can be compared. If one site costs more per square metre than another, the reason is buried in scope differences nobody has mapped. If one site generates more complaints, it is impossible to say whether that reflects the building, the frequency or the reporting. Standardising the structure is what makes any of those questions answerable.
