In the construction industry, adopting strategies such as energy-efficient design or construction as well as green building construction technologies will minimize environmental harm and promote sustainability. The energy efficiency is emphasized as a core part of sustainability within the architecture, also as the perceiving ‘what is…’, its methods and benefits, green building concepts are explored. It includes energy efficiency, water efficiency, materials efficiency, interior environmental quality and site and building design efficiency. There is mention of a range of energy efficiency measures including the use of advanced insulation systems, passive solar design, energy management techniques, and the use of renewable energy sources. All these points bear very clearly the projections for enhancement of urban landscapes and health of the world while also looking into the challenges and possibilities for the future of the green building practices.