Comment Re:Wow... (Score 1) 59
It's supplementary information that the buyer should be aware of. If an area is liable to flood, they can look to see what measures the owner has put in place to prevent that, or if the elevation of that particular house is higher than the water is likely to rise.
Of course, even if that particular house doesn't flood, having a flood in that area is still a problem. It might limit the owner's ability to travel, it might cause utilities to be cut off for days on end.
It might also affect insurance. In the UK, if your house is within so many metres of a river or lake, you tend to pay more even if it has never flooded. Same with large trees near the property, which may fall on it in extreme weather, or cause its foundations to shift due to roots undermining them.