The ideal house, besides being able to meet the general normal person's function of using, it should be the living environment of the comprehensive function of including disability when one can youngly, one being old to look after in the residence at home, and one even approaching one's end of life...etc; In other words, what the ideal house pursued should be that one can meet occupant's viability at different stages and inhabit the demand, and a sustainable house way to let occupants not need to face the changes or the transformation of the living environment forever, namely the so-called ”ageless house” way.This text adapts to occupant life cycle to the house all one's life promptly (Include health period, obstacle period, lie in bed period), Suggestions made of the necessary space and equipment.