We're having our gravel driveway regraded. As of right now (it's fall) the basement floor of our side door/garage door is level with our gravel driveway. During the winter, the driveway heaves and rises and water has entered in both of those doors.
I remember the home inspector saying that having the two surfaces (basement floor & driveway) flush isn't up to code. Is there code regarding a step height, that we can refer to for this regrading? If not, what's the recommendation?