Permanent Wood Foundations- help!

[Rohan D.]

Hi BP folks, I came across an inspection report for a 25 year old house which was built on Permanent Wood Foundation. What are the things I should be cautious about this kind of foundation? (for eg: grading of the house outside, rot, exposure to moisture...)

I am worried about the long term expenses that come along with it?

What is the life of the foundation I should expect before it starts to cost me?

Lastly what is the worst case expenditure I can expect to fix the foundation.

Assuming it has NOT been maintained with the best care.

House is approx 1700 sq ft

Thank you!