A couple of questions:
Where in the Fire Safety Order does it state that a fire risk assessment has to be recorded?
Article 9(6) states that the prescribed information must be recorded, that information being
9(7) The significant findings; and
persons especially at risk.
Is Article 27 (Powers of Inspectors) not clear on the issue of plans?
27(c) "to require the production of, or where the information is recorded in computerised form, the furnishing of extracts from, any records (including plans)-
(ii) which it is necessary for him to see for the purposes of an examination or inspection under this article,
and to take copies of, or of any entry in, the records"
I agree that plans will in no way show the level of risk in the building, that will be done through your FRA, but as an enforcing officer I will need to make a judgement regarding the suitability of your General Fire Precautions in relation to the level of risk within your premises, and in all but the simplest premises a plan would greatly assist me in doing that.
If there is no plan in place, it will undoubtedly take me longer to look at the General Fire Precautions, especially when the person dealing with me isn't the, or a, person appointed to provide safety assistance (as is normally the case). This will mean that my audit will take longer, and therefore I will carry out less audits over a period of time, and will therefore have less effect on driving down the risk of fire in the community that I serve.
I can't remember where I got it from (may have been the original training session covering the Fire Safety Order in Lancs or GMC Brigades) but I understood it to be the case that if the enforcing authority required plans then they would pay for them (although I might have imagined that bit).
Many apologies if my observations are wrong, feel free to tear my contribution to shreds.