The purpose of the project B.C. “MSWiA for climate — increasing energy efficiency with the reconstruction of the building at al. J. Ch. Szucha 2/4 in Warsaw carried out as part of the investment task “Reconstruction of the building at al. J. Ch. Szucha 2/4 in Warsaw together with adaptation to fire protection requirements" is the reduction of energy consumption and adaptation to the current standards of the building at al. Jan Chrystian Szucha 2/4 by carrying out thermal modernisation of this building. The building is located in Warsaw. The reduction of energy consumption will be achieved by reducing heat losses from the building, reducing the heat demand for heating the building, reducing the energy demand for the preparation of the c.w.u., reducing the electricity consumption of the building. In addition, the investment will implement an energy management system (BMS), which will allow for efficient and optimal management of the building’s energy consumption, which will translate into additional energy savings.