I can tell you that a private landlord (or landlady, in my case) certainly wouldn't be allowed to let out housing where there were no safety measures. The gas boiler had to be (then) Corgi-inspected and passed annually, flues were checked for any blockages, there were to be smoke detectors on both floors, and for good measure, I chucked in carbon monoxide detectors, too. When I sold one larger house to a chap who was going to use it to house asylum seekers, the Home Office told him that all internal doors had to be standard fire-retardant, that he had - not an option, as it is with private landlords - to have monoxide as well as fire detectors, and fire extinguishers downstairs and on the upper landing. There would also have to be HO-issued notices put on doors to indicate exits - these would be in a variety of languages, so in the case of any problem, the occupants knew which door to use. There were some other compliances to meet, too, before he'd be given any tenants through the HO.
My leasehold flat is owned by a housing association which also owns rental-only blocks. As some of you know, our block and particularly my flat, has been plagued by rainwater coming in through the walls and ceilings. When the rain eventually fritzed the electrics to my bedroom's ceiling light, the association's answer was to just cut the wires and bind them with a bit of sticky tape. That was two years ago, and the repairs are now re-scheduled for about the 4th time to start this autumn. My only recourse, it seems, is to sue the pants off them if they don't start up this time - and at £150 an hour, my solicitor won't come cheap. There is no interest in the association complying with good practice - I told the Council that I was bitterly unhappy about the situation, and all they did was to 'ask' the association when they'd repair the place, and told me they were 'satisfied' that the renovations - six years after the rain first entered the building - were going ahead. So I'm sure Councils, if they're like Brighton & Hove, don't give a flying fart about the condition of their own stock, any more than they do about that of so-called 'caring' housing associations.