Both the IRC requires 6" slope away from the foundation in the first 10 ft., the UBC 6" in the first 6 ft. On a graded lot the top of foundation must be 12"+2% above the curb. The AHJ can override it though. New construction or not, if provisions are not made to get the wtaer away from the foundation, call it. It does not mateer if the AHJ approved it or not. A problem is a problem. The last new house I did was a total screw up. The builder set it 12" too low. It cost him $30K to provide adequate site drainage.