Every window and external door (including to balconies) is lockable and you have been provided with keys for the locks. Unless windows or doors are currently in use, for your own security we strongly recommend that you keep them locked. Please take good care of window/ door keys as you will be charged for their replacement if they are misplaced during your tenancy.
All main doors in the common parts, including flat doors, are fire doors – this means that when closed they provide a certain level of protection from the spread of a fire should one break out. As such, under no circumstances should any doors be propped open, and when you walk through you should ensure the door is fully closed behind you.
Given the central, busy location of the building, security at the external entrances of the building are of paramount importance. Please do not allow anybody to follow you in to the building for any reason, even if they claim to be an occupant.