Fire check doors

[Suz]

Hi, 

I have had a loft conversation, so my house is now 3 storey, do I need a fire rated door on the 1st floor bathroom? My understanding is that if it’s not a habitual room I don’t need one, all my other doors are fire rated. Thanks 

Suz 

[AnthonyB]

Normally bathrooms and toilets opening onto protected stairways do not require fire doors unless containing an additional fire risk (e.g. a boiler) - however current Building Regulations as applicable to dwellings don't have this clause in so arguably all the doors should be fire doors.

As such as conversion requires Building Regulations approval (distinct from Planning Permission) then LABC or your Approved Inspector should have stated if the door needed changing or not and if they did not require it at the time (by a sensible interpretation of the guidance) then you are fine.