Mt Duneed - soil question

Hi all,

Looking at property in Mt Duneed - the lifestyle is appealing and we have family there.

We’ve come across a few houses, all of which have soil class P meaning (I believe) they’re built on clay?

Does anybody have any experiences with this, or currently own a home with this type of classification?

My concern isn’t so much the soil classification but more so ensuring the foundations have been done in a way according to the standards for this type of soil. How can one future proof themselves to ensure this is all done accordingly?

Thanks all!