Family house DJS I86 is a small single-storey, 3 bedroom energy-saving house. This house features original shape of roof as well as covered entrance and terrace. The floor plan of the house is designed to minimize dead zones. Private zone consists of three bedrooms with a shared bathroom. Day-time zone consists of a living room with kitchen and dining room. The living room is connected with garden through glazed patio doors. Entrance is partially protected from weather conditions by a little roof. All internal plumbing is located in one place. This solution reduces construction costs and the failure rate during operation.