Hi - I've had a look on here and through various sites/docs and haven't been able to confirm the answer to this 100%.
I own and live in the ground floor flat of a converted 1930s house. There is one other flat upstairs which is technically 2 stories as it has a loft conversion.
There is a small communal hall (c 4x.1.2m) with mains smoke detector attached to the others in both flats. The main front door is uPVC. Both flats have entrances to this communal hall with the upper flat having a staircase just behind the door to the communal hall.
My property has 2 external rear entrances to the garden/rear access (uPVC doors) and as mentioned mains connected smoke detector.
Upstairs obviously also has the mains detector as well and has a rear steel staircase access to the flat via uPVC doors.
I am an owner occupier with 50% of the freehold and am also the leaseholder of my property. Upstairs is a buy to let with a landlord with numerous properties. Typically is occupied by 2-3 people (couples/small families). My property used to be a rental and there is a fire blanket and extinguisher (i added).
I'm struggling to find a definite answer to the requirement, designation of responsible person etc. I also live in Wales if that complicates matters in terms of leglisation.
thanks!