The aim of the Bachelor’s thesis is to design a nearly zero-energy detached house for a family of four. The thesis consists of two parts. The first part covers architectural and structural design, fire safety design, and building physics assessment. The second part includes building services design and energy performance certification. The house is designed on a slightly sloping plot in Kostelec, a district of Zlín. It has two storeys and a detached garage. The ground floor includes an open-plan kitchen, a pantry, a laundry room, a utility room, a study, and a separate toilet. The first floor contains a master bedroom with a private bathroom and a walk-in closet, two bedrooms, a bathroom, and a guest room. The house is founded on a reinforced concrete slab laid on foam glass gravel, the load-bearing walls are made of sand-lime blocks, and the floor structure is a reinforced concrete slab. The house has a gable roof made of timber trusses insulated with blown-in cellulose, and the garage features a flat green roof. The house has a single-skin facade with grey polystyrene insulation, while the garage has timber rainscreen cladding. The house is classified in energy efficiency class  A. The primary heat source is an air-to-water heat pump, which provides both space heating via an underfloor heating system and domestic hot water preparation in a 234-litre indirect cylinder. A wood-burning stove serves as an additional local heat source. The house utilizes mechanical ventilation with heat recovery. The building is connected to the municipal water main, sanitary and stormwater sewer, electrical grid, and telecommunications network. Rainwater is collected in a retention tank for garden irrigation and toilet flushing, with regulated overflow directed into the stormwater sewer. The house is equipped with a 10.6 kWp photovoltaic array with 17.3 kWh battery storage.