Originally Posted by
vroomtshh
It very much depends on the area you're in, but generally, internal doors (to your bedroom, kitchen etc) dont need to be fire rating, but you're external doors (main door) do.
The external door is a must, but I think the internals have to have spring loaded doors (i.e. always want to shut).
On the safe side, replace like-for-like.
You don't want to sell the flat in the future and be buggered at the survey noting the lack of Fire Doors.