Abstract: A house is one of the basic of human needs as it provides shelter and comfort for us to live through the lives. When owning a house, researchers can see every sort of renovation done to the original house after quite some time because when a family expand either by growth or being economically stable, they would want a better place to live in. Researcher can see the renovation trends in Malaysia are really popular even at a glance because looking at some areas in Bandar Baru Bangi, there is hardly a house that is still in its original state. This study will conclude an alternative to guide the house buyer with renovation works while still abiding the law.