1/ Waterproof wall or dyke that shields the house.
2/ Waterproof doors and windows.
3/ Vent-like holes in the floor at the entrances that suck water and reroute it out of the house through a pump.
4/ Spray-on substance that can be used to seal doors and windows temporarily.
5/ Structural frame below the house that can lift it.
6/ House is mobile home which can be lifted by a crane.
7/ House is a house boat which can be untethered from the ground so it floats.
Do these sound workable? Any other ideas?