Reading the lease boundary as a cleaning boundary
The lease plan is the starting point, but it rarely answers every question. A tenancy that occupies part of a floor may have amenities inside the demise or share them in a common lobby. A dedicated entry door may sit in a common corridor. A store or comms cupboard may be leased but accessed from outside. Each of these determines who is responsible for cleaning the surface, and each is worth confirming rather than assuming from a drawing.
The practical test on a walkthrough is to stand at each threshold and ask who pays for what is on the other side. Where the answer is the building, the tenancy scope excludes it by name. Where the answer is unclear, that is exactly the item to raise before the agreement starts, because unclear areas are the ones that end up unserviced for months.
