I take a completely different view on this report, as to me it raises a number of concerns re. the person doing the report.
Firstly it indicates that rcd is required for fault protection - why? All zs appear to be within limits.
But then again it uses the hot (reg) limits for max zs, and cold measured zs
It states waterproof (ip x7) required in bathroom etc - not required by the regs unless it genuinely is within zone 0 , other than that ip x4 is required, which is normal fittings.
These are serious misunderstandings of the regulations and testing and inspection in general, can we therefore believe the other observations - for example socket within 3m of zone 1 - is the bathroom that big? If the socket is outside of the room 701.32.1 applies.
Also waterproof required under sink (sensible but no regulation demanding it)
As for the rcd fail, perhaps this is right, but I am somewhat doubtful that the testing was completed correctly based on the misunderstandings above, did he/she test on the correct setting?
OK, there are a number of potentially valid observations, cracked sockets etc, cpc missing in switch etc.
And it does look like there is an incorrect mcb fitted.
However, I would be concerned with the workscope suggested, I would engage a different electrician to replace the valid sockets, tighten up the loose ones etc and investigate the validity of the suspicious observations, which may result in a new board.