Thanks for your replies.
The suite is for members of the public and has a fire door between the lounge and bedroom area.
It is ironic that if there wasn't a fire door, the bedroom wouldn't be an inner room and this 'problem' would'nt have arisen, although it could be argued that an open plan layout presents a higher risk. As it is, in the event of fire, with the fire door closed door, the punters may have time to exit via the windows and thereby are safer than if it were one room.
I reckon we, the FS community, tend to get our knickers in a twist far too often about inner rooms (and inner inner rooms), and resort to hugging presciptive codes rather than looking at/assessing the whole picture holistically
This is certainly the situation here as I am aware that the already low windows do open quite widely (although I have not measured them to see if they are ADB compliant) and it would not be a problem for all but the very elderly/non ambulant to escape via this route.
Being a mere IO, it's difficult when asked advice by a RP about such issues as I feel albeit the risk assessor's method is the best way, it's over the top for such a small undertaking and ignores the 'where necessary' approach that I prefer.