Are fire doors needed in 4 storey 1920s house?

[OliverJ]

Hi, Ive recently bought a 1920s 4 storey house, and im planning to replace the original pine doors which have been dipped and are falling apart. We are undertaking a general rennovation to the house - replastering, relocating partitions, new roof, windows, basement rennovation etc, but not sure if this all means I have to install firedoors to meet modern regulations. Any advice is welcome!

[Neil ashdown]

Does the work you are doing fall within the scope of Building Regulations?

[OliverJ]

The basement revovation will need to comply with buiding regulations as we require structural work, inc underpinning.

[Neil ashdown]

Best to check with local authority building control on fire door requirements then.  Protected escape route from upper floors, Approved document B (dwellings) Annex C Fire Doors.