RV- I like you work in the insurance industry.
Like you I question the value/worth of surveyors report.
At a high level there seems to be 3 price points on surveys for a new purchase. Mortgage lenders – worthless piece of paper for their own benefit only, middle of the range survery circa £600 – again worthless, then full structural survey circa £1100.
Even the latter isn’t much help. Will the surveyor lift carpets to inspect floorboards for rot/woodworm.
Will the heating system be fired up/tested.
Will he check the DPC/DPM, check for damp? Will he go into the loft space?
If your spending some reasonable dough on a property, I think these days I’d commission a drains survey (CCTV circa £175) which will show if the drains are leaking/root growth and are indicators as to what the subsoil around the property maybe doing.
I would ask someone you know who has knowledge of using a damp meter to check for potential problems with the DPC – this is likely in building stock of the age your considering.
Lastly, I’d find a reasonable builder friend and ask them to look round, they are more likely to offer an opinion, RICS qualified surveyors wont say anything which could come back to haunt them, in terms of advice.
If the property has been extended, building control would have been involved, regardless of whether it was an extension which required planning consent or not. This should give some comfort that the new bits are up to scratch.
Bottom line, this is your biggest investiment (usually), you can’t do enough to guard yourself against the what-if’s. If you would sleep better having had a survey done – do it.