The aim of this Bachelor’s thesis was to design a nearly zero-energy detached house on a flat plot in Ústí and Orlicí. The house has two floors. The floor plan is L shaped due to a garage. There is a kitchen on the ground floor connected to a living room, which has two sliding doors opening onto a patio. There is also a bathroom with a toilet, a utility room connected to a garage space for two cars and a workshop. The second floor contains two bedrooms, a bedroom with a separate walk-in closet, a bathroom and a toilet. The house has a plain concrete strip footing. The load-bearing walls are designed of sand-lime blocks, and the external walls are insulated with expanded polystyrene. The floor structure is a cast-in-place reinforced concrete slab. The house has a green flat roof.
The house is heated by an air-to-water heat pump located in the utility room. Three-way valve divides heated water from the heat pump between the underfloor heating and domestic hot water storage tank. The main source of renewable energy is 12 photovoltaic panels installed on the roof.  Energy from the panels is stored in batteries located in the utility room. It supplies the house and it is used for charging a car. The house uses mostly LED lighting. It is mechanically ventilated by a heat recovery ventilation. Rainwater is accumulated in a storage tank and filtered. Filtered water is used for flushing toilets, garden irrigation or absorbed in infiltration blocks. The house is connected to existing sewerage. The house is designed to achieve class A of Energy Performance Certificate.