Ever see that Soviet adaptation of There Will Come Soft Rains?
Granted. You are now half an inch tall and live inside a human being who showers daily.
It only cleans when everyone is asleep a randomly reorganizes the entire house at random intervals and uses a different system every time
Granted, your house cleans itself inside and out. However, it deems everything outside to be unclean and therefore a danger to it. It goes on a cleaning rampage that is only ended when the army blows it up. You are now homeless. Any home you own from now on will also clean itself in the same way.
Granted. Being truly clean will of course demand sterilization. As part of a daily cleaning cycle the house seals itself and becomes an autoclave. The building becomes pressurized and the temperature is raised to 270 degrees fahrenheit for 20 minutes. You’ll probably wanna be gone when it happens.