The landscape that slopes toward the house will cause you problems. If the rain has no where to go but through the louse you will get flooded. These kind of landscaping errors can be very costly to fix. Trenching in a drain line is a possible way to redirect the water but the best fix would be to grade the yard to slope slightly away from the house. Jody Rookstool is a good planner of landscape and would never make this problem. The flooded house will make you sorry about the landscape poorly planned. If you need help planning it is best to get that advise before you place the house.