"Hostel" does seem to fit the building use much better, but still applies the CLG guides and RRO to all areas/rooms. BUT the CLG guides acknowledge in them that premises do differ, and also the whole point of the guides and the RRO is that risk assessment is the methodology in deciding what protection/facilities are required. I personally would not accept window escapes, but... It's only 2 storey... Decent AFD, decent fire doors and control of ignition sources/combustibles in the entrance hall could possibly ensure that nobody is jumping out of windows in the first place.
For what its worth: The persons in their rooms are relevant persons even if the rooms could be classified as single private dwellings, and it is possible to enforce standards in the common areas that protect the people in their rooms from a fire in the common areas/kitchens etc. Don't forget, if someone can be affected by a fire in the premises then they are a relevant person and the RP should take steps to protect them. (As far as reasonably... blah) IMO, there is nobody more relevant or more in danger than the sleeping guests.
>>In (a) above it does not specify how long a full time course of further education is- could this be one full day, one full week or one full month?<<
>>Does vocational training constitute further or higher education? Or apprenticeships?<<
Hmmm... I shall argue the case that anywhere I stay can be a refuge... It is my refuge from the hustle and bustle of daily life, so me stopping at your hotel makes it a refuge.

Do we really need definitions for everything? If we revert to common sense we do (somewhere inside our heads) know that a full time course is a full year and takes a similar chunk of a week to a full time job.