The Building Management System is computer based systems that support to manipulate, control and reveal constructing technical services. The energy consumption of gadgets utilized by the building. They provide the expertise and the tools that building managers want both to realise the power usage of their structures and to manipulate and strengthen their structures’ vigor efficiency. The term Building Management Systems encompass wide variety of technologies which include energy management systems and building controls.. Depending on the approach, BMS application can be mounted as a standalone application or it can be integrated with other monitoring applications. Extra developed BMSes can display and manage a huge range of building offerings throughout a couple of platforms and protocols, offering facility administrators with a single, shared view of the power’s operations.