Answer: To be honest, it is very difficult to answer your question with any certainty. In general it is not a good idea to interfere with tree roots, and filling over top of them or making changes to drainage patterns in particular can definitely kill a tree. However, some trees can withstand a certain amount of damage and survive. To assess your particular tree's chances, you might wish to bring in a professional arborist for an on site consultation, as well as a landscape architect, engineer or other professional to assess the drainage problem and possible solutions in view of both the tree and the house.
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