The building sector is responsible for a substantial part of energy use in Europe and Kosovo. Buildings in Kosovo account for 40 % of the total energy demand, but the building sector pays little or no attention to energy efficiency. The most relevant laws (Energy Efficiency law is in force since July 2011), administrative instructions, regulations and strategic documents in field of energy efficiency are almost completed but implementation and enforcement is still very weak. Despite all this laws, new regulations and other measures that regulates technical requirements for thermal energy saving and thermal protection, application and management faces difficulties especially in planning and implementing energy efficiency in new buildings according to “ENERGY PERFORMANCE OF BUILDINGS DIRECTIVE 2010/31/EU” The paper will identify barriers and recommend appropriate methods and tools for improving energy efficiency in buildings through implementation of initiatives as efficiency labeling or certification that will raise buildings energy efficiency (EE) beyond minimum requirement and social, spatial and environmental measures for improving EE in buildings. The study concludes that most important factor for EE in buildings is reduction in energy demand in existing and new designed buildings. Best solution to achieve thesis creating a Building Model for Energy Evaluation