In doing home inspections, one of the things I do is lookup is a FEMA flood hazard map Firmette. This is the website to get it from. Type in the address of the place you are looking at. It will take a little bit of digging, but it will basically tell you the % chance of the place you are looking at ever flooding.
As an example, I typed in the following law school address: 3100 Cleburne Street, Houston, TX 77004
https://hazards-fema.maps.arcgis.com/apps/webappviewer/index.html?id=8b0adb51996444d4879338b5529aa9cd The whole area around the school is flood free, but to the south there are several areas that have a flood chance.
Until next time, please consider carrollengineers.com for your home inspection.