I wish I'd been able to do that years ago. It would have been nice to have the whole yard raised...well, as much as possible while still keeping the live oak motte at one corner, anyway. That is the most valuable part of the original yard...truly priceless! We did have one area that was already raised when we got it. The septic field....raised and filled with...caliche, then topped off with a lot of gravel (orginal owners sometimes parked inside the yard right in front of the deck). Now, that didn't help at all! So after we moved in and it rained, the gravel area came alive with weeds! They didn't garden, needless to say. Probably the only plant they planted while they had the place was an oleander in the front side of the property...outside the yard. They obviously used chemical herbicides (ugh!) and the fenced yard was for their dogs.