Any idea on how much it would cost to regrade a backyard, about a half acre in size?It currently has some wild plants, nothing over 6 inches, and no trees or rocks.February 02 2009 - Grain Valley00YesReport a ProblemProblemSelect oneOffensive contentIrrelevant contentSpam (pure self-promotion)OtherDetailsYour emailPlease enter a valid email address.Submit CancelContent flaggedWe will review this content. Thanks for helping make the site more useful to everyone. To learn more, read Zillow's Good Neighbor Policy.We're sorry. This service is temporarily unavailable. Please come back later and try again.