William29
This blurring of 'categories' is common but need not be an issue to assessors or auditors. What needs to be addressed is the level of risk and whether the responsible person is complying with their obligations under the Fire Safety Order.
Extra Care is a further incremental step on the rainbow of care provision, (sorry got a bit poetic there), more than sheltered housing but not quite full 'nursing home'. This approach is common across all 'care premises' from assisted living through to full dependancy.
From a legal point of view, your first question is - does the Fire Safety Order apply? If so - to what extent? Then - who is the responsible person(s)?
Then it is simply a case of going back to basics - are relevant people as safe as reasonably practicable? Does the alarm system warn them? Can they get out? Are they able to get out on their own, etc?
Remember when you strip away all the 'efficiency arguments', the RP 'creates the risk' and they must deal with it. Both assessors and auditors are obliged, (to some extent) to assist the fulfilment of this duty in the most cost effective way but the duty remains.
Premises providing care were always going to be, (along with dodgy hotels), the premises most directly affected by the new legislation.