A growing world-wide concern for the conservation of energy and depletion of natural resources leads to a renewed interest in those aspects of architecture, which leads to thermal comfort in buildings with minimum consumption of conventional energy and depletion of natural resources. These aspects are termed as energy efficient design strategies. Various strategies for designing green buildings are (i)Building design parameters (iii) Efficient selection of HVAC equipments (iii) lower embodied energy of building material and (iv) Soil & water conservation. In this review various aspects like social, economical, energy, environment and sustainability of buildings with their labeling in terms of Bureau of Energy Efficiency, India has been presented.