When looking to buy or renovate you may want to have a look at the grading of your property i.e. around your house and in the back yard.
A proper grade will ensure there is enough slope that the rain/snow runoff will run away from your home and not into the basement.
The grade around your property will ensure there are not pools of water in the backyard. Without proper grading any pools of water that appear could take a couple of days to disappear this can be expensive to correct.
Source… Rob Paterson