Designing. constructing and using of buildings with low energy consumption are a complex process requiring knowledge of architectural design. construction physics and building systems with the use of renewable energy sources (RES). The article presents the legal bases and characteristics of low-energy buildings. https://www.spidertattooz.com/E201S-S-BAG-CLASSIC-LONG-PERFORMANCE-SToVSUGERPOSER-4-STK/