What probably makes sense is to enforce that a measure of equal fire risk reduction is applied if reasonable. The easiest way to achieve this is probably exter

What probably makes sense is to enforce that a measure of equal fire risk reduction is applied if reasonable. The easiest way to achieve this is probably external ladders for most buildings and putting disabled occupants on the ground floor or just in bungalows or something. Sheltered housing is pretty common in the UK. A fully covered, fancy carpeted staircase seems OTT if its' purpose is basically to be a fire escape.