Hillside against building: Is concrete the only way?

I am building a small building where the lower 2-3 feet of the uphill side will have to be right against the earth. My plan was to build slab on grade.… I am building a small building where the lower 2-3 feet of the uphill side will have to be right against the earth. My plan was to build slab on grade.…Read MoreGreenBuildingAdvisor