We have just had searches back which state the house we are buying has a moderate subsidence risk due to shifting sand in ground (no risk of ground collapse- not in a mining area- it's in a coastal town)
Survey didn't pick up any problems, but we have had a specialist search done that says there are already subsidence insurance claims in the road the house is on (houses are about 20 years old). It says it is in the lowest 25% of houses in the moderate category of risk- the only houses lower are those in roads with no subsidence claims.
The solicitor can't advise and the surveyor says the cracks are minor, so 'our' house isn't affected by subsidence. (I guess this means 'at present'!)
It took ages to find a house to buy (the area is very popular) and we will have to move into expensive rented if we pull out as our buyers are ready to exchange. What would you do???