Project “Introduction of energy efficiency measures in multi-family residential buildings on the territory of Botevgrad — Stage 1” is under Priority Axis 2 “Support for energy efficiency in support centres in peripheral areas” of OPRD. The project includes 2 buildings from the residential infrastructure of Botevgrad (Balkan, 16 Tsar Osvoboditel blvd., ref. A, B, C, G, D and Osvobodje 11 blvd. “Liberation” No 11, ref. A and B), the following types of works will be carried out for each of the buildings: all energy efficiency measures prescribed in the energy efficiency audit of each of the buildings; — structural restoration/effort activities prescribed in the technical passport of the buildings; — Works covering the renovation and reconstruction of different parts of the building (applies only to buildings that achieve at least energy consumption class C and at least 60 % primary energy savings) prescribed as mandatory in the building’s technical passport; — Accompanying works related to the implementation of energy efficiency measures and restoration of the initial condition damaged as a result of the renovation; — Activities to improve access for persons with disabilities to the above-mentioned buildings. For each of the buildings within the project will be prepared an investment project, author supervision, assessment of the compliance of the investment project and construction supervision during construction. The necessary information and publicity measures as well as highly efficient project management will be provided. As a result of the implementation of the project, two buildings will be renovated, the annual primary energy consumption of buildings of 2 379 192 kWh/year will be reduced, annual greenhouse gas levels of 605.05 tonnes of CO2 equivalent and 121 households will be reduced, and will switch to an upper energy consumption class.