Nowadays, sustainable development is a necessary and urgent trend for the global environment. Acting as one of the main parts of the economy. the construction industry also takes part responsibility for protecting the environment through buildings designed with low-impact on the environment. With the green building, there are many benefits to the environment and as the result; it's also good for humans working and living in life. India is experiencing incredible growth in the construction and real estate industry. This rise in the construction sector raises many issues related to the environment and sustainability. As per the economic policy forum, in its report mentioned that in India the energy consumption in buildings is for heating, ventilation and air Conditioner accounts for between 45% and 65% of total electricity consumption. Another study states that the construction sector of India emits about 22% of the total annual emission of CO2 which is very harmful to the environment. Soto handles the adverse situation a new and important concept is emerging in India that is Green Building. Energy efficiency is the key to achieving sustainability in green building. Lowering the energy consumption in construction is starting to become a significant improvement chance for many organizations. This research will identify the benefits of energy efficiency, explore the methods to apply efficient energy usage in green buildings and explore the obstacles in attaining energy efficiency in green buildings. Even though green buildings use a lesser amount of energy compared with usual buildings, energy efficiency is still hard to achieve, due to some barriers to putting into practice energy efficiency. This study will interview a property development company in Malaysia. After analysis, energy efficiency contributed two main benefits in the company such as reduced greenhouse gases emission and lower the air pollution problem, and energy saving. The company implemented electrical feeding and sensor system in the lighting system. passive design, and cross ventilation to achieve energy efficiency in their development projects. However, cost barriers, information barriers, and outdoor condition,s and climate barrier are the obstacles to attaining energy efficiency practices. Due to time constrain, this research was only able to interview one company. With the aim of getting more accurate results, should be interviewed more companies in future research because energy efficiency covers a wide area in the construction field.