The word “existence” was come from Latin word “exitere” meaning appear, arise, and become. Existence indicates the fact or state of continued being. It is an actual being whether people likes it or accepts it or not. For example, the survival in the earth such as animals, trees, seas, lands, stones are considered as a natural existence which cannot be set aside when making any decision related to constructions, buildings, etc. Hence, existence plays an important part in the decision on whether the particular building is suitable for the location.