This article deals with the problem of energy saving and energy efficiency improvement in the construction sector, which consumes a significant share of the country's energy resources. Issues of rational use of energy resources with aspects of energy saving, energy efficiency and, accordingly, environmental problems are becoming more and more urgent, and their solution has become a strategic task for Kazakhstan. With the aim of catalyzing the energy-saving measures undertaken in Kazakhstan, a number of laws, subsidiary laws and programs related to the issues of rational use of energy resources and energy efficiency improvement have been adopted. Targeted activities are planned to eliminate existing political, legislative, technical and information thresholds in order to solve this problem. The regulatory and technical framework premised on the advanced achievements of construction science is being developed. The current legal and regulatory framework and technological infrastructure, as well as the existing practice, are being analyzed. In this context, actions are being taken to introduce new mandatory requirements for thermal indexes in building regulations and other changes in the energy efficiency of buildings; systems for assessing and labelling energy efficiency and their implementation are being developed. Voluntary standards for "green buildings" and incentive mechanisms for their application are also being developed, procedures for State architectural and construction supervision of compliance with building standards and other requirements for the construction of buildings are being improved, greenhouse gas accounting systems are being developed and implemented based on data from the energy consumption accounting system and energy passports.