There is no secret that the world around us is slowly falling apart and the reason for that are the human activities. We construct huge buildings, without thinking about the space that they take or the energy that we will need to heat or cool them.Fortunately there is way for the people to reduce the impact of their constructions Sustainable architecture. To understand better its principles I think we must first be clear with the word SUSTAINABULITY which means “Development that meets the need of the present without compromising the ability of future generations to meet their own needs.” In other words sustainable architecture is concerned with the impact of the buildings on the eco-system and its primal task is to reduce it to minimum.