Characteristics of climatic, biotopic and geological factors of building ambient environment, aerodynamics and hydrodynamics of buildings. Ecological power utilization and raw materials sources (recycled discards, waste and row materials) for the optimum physico-chemical and biological properties of constructional materials and structures. Principles of generation of ecological buildings (use of renewable energy resources, use of local material resources, mechanism and architectural-constructional adaptation maked for energy savings, use of waste and rain water, green roofs, automated management of heating mode, aerating and building equipment service). Examples of optimalization material and energetic flows in course of building lifetime.