The study deals with a lot of attention of the energy and environmental aspects of buildings. The architectural project moves hand in hand with the study of the building and plant system in order to implement an integrated design , the only effective system that enables the creation of buildings with low energy consumption and reduced environmental emissions. Particular attention is paid to the search of new construction techniques and innovative materials with high energy performance , high level of recyclability and low energy value incorporated. Our approach to sustainability seeks to be exhaustive on various fronts, thus extending the analysis to the study of the life cycle of materials and the whole building (LCA Analysis). Another issue addressed is the comfort. Closely connected with the design of the building-system critical to ensure that beneficiaries of our projects a high level of hygrometric comfort , sound , lighting and air quality. "Comfort and Energy" is the synthesis of our sustainable architecture.