I may be stating the obvious but......

[Allen Higginson]

Relying on memory but,
as a former hotel theres every chance that the premises do not comply with the old CP3 in which dead end corridors were very limited ( max 7.5 m ) and had natural ventilation  whereas hotel bedroom corridors in those days were allowed up to 12m in a dead end.  AFD did not feature in either.

And in reply to Graeme surely if you go for L3 this will include DS in flat lobbies? I have encountered many systems in which heat detectors have been used in  the lobbies to flats, linked to a system with smoke detectors in common escape routes and a stand alone domestic detector in each flat- a compromise often found where means of escape cannot match the codes.

True on the lobbies for detection on an L3 system - this could be of course (taking into consideration the aims of an L3 system) a heat detector mounted at the door frame out onto the escape route (although I have never came accross this!).

[Graeme]

Kurnal

Yes to smoke detection in lobbies.