My house is about 1290'. I'm partway down a hill; during Harvey there was a site that you could see how far under water a given location would be with the same rainfall, and my house was -20, that is, 20' above the level, while the people who bought my backyard would be 16' under.
101.4 m or 332.6 feet The entrance to our estate is about 150 yards away and 50ft lower. This makes for a great drive during the few times that we have snow and ice. Less than 15 minutes away I can be at 243.4 m or 798.6 feet or 30 minutes in traffic the other way and I'm at the sea.
4.4m or 14.4ft and hurricane Irma and the rain and surge didn't bother me. By the way, I was in the second mandatory evacuation zone and ordered by a phone robocall to evacuate (no thank you sez I ) and had no wind damage and NO power outage at all!