Hi

If you click on the below link it'll take you to the Lewisham Council's Building Control site, you just enter the name of the road, and it'll bring up every case.

As it is a legal requirement for any underpinning contractor to submit an application to the Council, this should show you how many instances of underpinning there is on that particular road.

In my experience (living in Forest Hill, on Clay), insurance premiums aren't that high, unless you actually buy a property which has already had a subsidence claim, and even then there are specialist brokers that can offer pretty competitive prices.

http://acolnet.lewisham.gov.uk/lewis-xsl....pgesearch