Buying a house with very high risk of shrink-swell hazard

[Froghat]

Has anyone gone ahead bought a house which was flagged as very high risk for shrink-swell hazard?

The structural survey did not find any evidence of subsidence. I was expecting subsidence to come up as a risk because it's on London clay but the "very high" rating has alarmed me.

Digging into the detail, it shows the relevant input factors as:

Tree proximity 10
Underlying geology 9
Local building age 7
Local drainage 10
Local building height 7
Local building type 6

The searches have shown that there are a couple of tree preservation orders in place.

Arrgh I don't know why that link appeared in my post - that was unintentional!

My god. This house is really the gift that keeps on giving @Froghat.

I know, right?! @KievLoverTwo what do I do? Is very high (not just high!) subsidence risk a sign to walk away?

Tbh I keep hearing that a LOT of London has this issue, so you could keep coming across it time and time again.

Back to the old house Facebook group, maybe?

Otherwise the London subreddit on Reddit might be a good source to get many, many, many opinions on this issue re: prevalence in London and how it is managed.

It's just this house... And... You know... Everything!

Current thinking is to book another survey (specialist subsidence risk survey) for a second opinion.

As in my current thinking.

O_O

How many different surveys have you had now?

This would be the 4th.