Installing a foundation

[Tyler Todhunter]

Hey BP community!  I have the chance to buy a fire damage house at a good price through a wholesaler.  In my due diligence, I contacted the city code office to make sure there are no deal breakers- there might be.  The city requires any "significant" modifications (restoration or modification constituting 50% of the value) to elevate the house and secure to a new concrete foundation.  The house is currently post & pier.  

Has anyone taken a post & pier house and put a foundation under it?  How big of an undertaking is this?  Thanks for any input!