If you are acting as a Landlord you may find that whilst the RRFSO does not apply, the Homes Fit for Human Habitation Act and Housing Act may consider the layout as a category 1 hazard if the inner rooms are present and you have extended travel distance with little or no mitigation. I have seen recent examples of this from local authorities. We have to remember that whilst Building Regulations are not retrospective, some fire guidance has been around for donkeys years for dwellings within blocks. Non compliance against these would not be a defence if the worst was to happen.
