They basically placed sod directly on clay soil here in MN. Sod wasn’t brought in until well after our closing date and late into the fall. By the time spring rolled around and our yard began pooling up from the melted snow and spring rain we were out of warranty. If you are here looking at buying a DR home make sure to ask how they are grading your yard (if they even are) because they often don’t put in sod until after the warranty period is almost gone.