You need to talk the the folks living nearby. Ask them if they have
ever had
any water in their basements.
We moved into our 1956 house in 1973 and,
we've been getting a major flood in the basement about every 6 to 8 years..
There were some signs of past flooding, but they looked old,
and there wasn't even a pump installed in the sump.. (We were scammed)!
If I had it to do over again, we would not be living here!
Radon is also a concern too. Ask neighbors about that too. Small Cracks can let
radon into the house. And it can cost you extra to remedy the problem.
http://ecorenovator.org/forum/other-...html#post18229
You can ask the sellers about the house, but if it's important, get a written reply.