The criteria is whether you are within 2,500 ft. of the water's edge. Most people are insured for replacement of their homes (plus contents) at the average cost of per sq. ft. construction. Obviously, this does not cover land costs, which are the biggest part of one's property value if you are near the water. I figure that the value of our house, which is a very large one, is about one-quarter of the overall value, with the land being the big nut. Of course, we don't know if land near the water will be as highly desirable as it has been historically if all these storms continue to ravage coastlines. My bet is that it will be, however, because there's only so much of it. We have watched coastlines erode and topple for years in CA and people are still bidding against each other to snap the land up. I know we wanted a house that at least had a very good view and reasonable proximity to the beach, or none at all. And we have had no damage at all, but for some storm surge on the ground floor and into the swimming pool during Ivan. A cleanup, but okay. Still worth it, for our nickel.