On March 22, 2020, the City of Zagreb was hit by a strong earthquake, measuring 5.5 on the Richter scale. The earthquake caused significant material damage to residential buildings, especially in the center, but also in the surrounding settlements. Renovation of buildings affected by the earthquake is also an opportunity for quality energy renovation of buildings. Even before the earthquake, Croatia saw the need to build energy-efficient buildings and houses in line with the European Union's energy policy. Energy efficient construction results in reduced energy consumption and reduced greenhouse gas emissions, which has a positive impact on the environment. Nearly 50% of the housing stock in Croatia was built before 1970, which represents the potential for energy renovation both in Croatia and in the City of Zagreb. Already in 2014, the Government of the Republic of Croatia adopted a detailed renovation plan and program with the aim of determining the analysis of energy consumption and energy efficiency in the existing housing stock, determining the potential and possibilities of reducing energy consumption in existing residential buildings and elaborating the implementation of measures to evaluation of their effect. The earthquake in the City of Zagreb has accelerated the need to implement these measures and build in an energy efficient way. An analysis of the housing stock found that Croatia needs renovation and investment in energy-efficient buildings. After the earthquake, the Croatian Parliament passed the "Law on the Reconstruction of Buildings Damaged by Earthquakes in the City of Zagreb, Krapina - Zagorje County and Zagreb County". The law should, among other things, encourage energy- efficient reconstruction of the City of Zagreb. It is very important that the renovation is in line with the European Union Directive on Energy Efficiency in order to lead to a positive impact on the environment and reduce energy consumption, which includes financial reduction of expenditures to citizens in such real estate. With a significant reduction in energy consumption, the comfort of living in renovated real estate increases and the market value of energy-renovated real estate increases. In addition to the above benefits for the environment and the reduction of energy consumption, the reconstruction should have a positive impact on the Croatian economy itself, such as increased employment and GDP, tourism development, and especially the development of the construction sector.