The aim of this master project is to design a nzeb kindergarten and primary school in Škrdlovice. The building has three parts: kindergarten and primary school with 2 above–ground floors and basements are connected with a single canteen. The canteen has a flat extensive green roof, while the kindergarten and primary school have saddle roof. The kindergarten has two identical floors with playrooms, locker rooms, bed and toy storage, teacher’s office, and bathrooms. First floor of the primary school contains locker room, teacher’s’ offices, it classroom, afterschool centre, and toilets. Three classrooms, headmaster’s office, and toilets are in the second floor. The building is designed using Xella building system. The external load–bearing walls, slabs, and internal non–bearing walls are made of aerated concrete blocks. The internal load–bearing are made of lime–sand blocks. The building is insulated with non–fibrous mineral panels. The project includes design of lightning, HVAC, DHW, and photovoltaics systems. The project also includes a study of three structural details including 3D models in BIM software and their thermal assessment. The project was designed using BIM software Revit.