The project deals with the reduction of energy intensity of the detention centre of the Rosnička Kindergarten in Prague 13. The object building no. 433 is located in Ke Koh-i-noor Street, on the plot of parc. no. 666 in the cadastral territory of Stodůlky (755541). The proposed measures to reduce the energy performance of the building include the complete insulation of the building envelope, the installation of a forced ventilation system with retroactive recovery of waste heat and the introduction of energy management.