Introduction. At the present stage, domestic enterprises in the construction industry are faced with a number of difficulties. The increased uncertainty of the economic situation in the country forces the organizations of the construction sector, when implementing investment and construction projects, to adapt to newly emerging circumstances, shorten the planning horizon, and apply modern technologies and management methods. BIM technologies demonstrate their effectiveness at all stages of the life cycle of construction projects, which makes them promising to use in the current realities.Materials and Methods. The possibilities of using BIM technologies in construction projects are becoming wider - from the familiar design using digital models to the creation of extensive databases used in modeling the processes of operation of objects, their reconstruction or demolition. Today, BIM technologies are an effective tool for achieving the internal goals of construction organizations and for organizing effective interaction with the end user of construction products.Results. The use of BIM technologies makes it possible to make effective technical, organizational and technological decisions, both in strategic planning and in operational management during the implementation of investment and construction projects. Information modeling technologies save resources at all stages of the project life cycle, but the best results can be achieved with an integrated approach to their implementation.Discussion and Conclusions. Having been widely used in foreign construction practice, BIM technologies make it possible to reduce the total cost and timing of the implementation of investment and construction projects and at the same time improve the quality of design and survey work and construction and installation work. Qualitative and quantitative benefits for organizations in the construction industry in the implementation of information modeling technologies determine the interest in them from Russian companies. In the context of active digital transformation, including with the support of the state, BIM technologies are becoming a tool for optimizing the activities of construction enterprises in the implementation of investment and construction projects at each of their stages, as well as increasing the competitiveness of firms in the domestic and foreign markets.

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Introduction. People’s growing needs in energy resources in conditions of resource deposits depletion makes it relevant the development of methods of enhancing buildings energy efficiency. The article notes the importance of increasing the level of energy efficiency by selecting a set of measures for the efficient use of energy resources at all stages of the life cycle. The analysis of Rostov-on-Don housing stock and positive trend in housing commissioning capacity growth in Russia point at the need to enhance the energy efficiency of buildings being under construction.Materials and Methods. Energy efficient methods are as follows: the application of modern thermal insulation materials and "green" building technologies. The latter implies the approach to the design of buildings inferring minimized impact on the environment at all stages of the life cycle - from a building’s design to its elimination - including the application of "green" technologies: Smart Energy Glass windows, recuperators, solar panels.Results. The results of energy-efficient technologies application were considered on the example of “Ostrovsky” residential compound being under construction in Rostov-on-Don. As a result the planned energy efficiency class B (high) was upgraded to A + (very high), which corresponds to one of the green building criteria.Discussion and Conclusions. The use of energy efficient measures in construction of residential buildings allows to save considerable amounts of energy and resources at the stage of high-rise buildings operation, resulting in their energy efficiency class enhancement.