Yes - absolutely. We should not be building on flood planes at all.

They are there for a reason, a natural drainage system and the best option to avoid damage to homes and pressure on emergency services. If buildings were built and damaged them caused to new and older homes due to this, it would create more harm than good and drive people out of their homes. And ultimately making the are undesirable.

I have no ideas to feed back on how to prevent apart from nature drainage systems are by far known to be the most effective and should not