The problem of today is a complex study of the multicomponent geotechnical system of large green building projects. The essence of the green building project is to introduce a set of technologies to improve the construction process and minimize future costs. A comprehensive implementation of energy-efficient technologies considered by the author allows obtaining an overall reduction in heat consumption from 30% to 70%, depending on the list of measures and selected technical solutions, as well as on the initial technical condition of the house. Based on these calculations, during the period under consideration, the NPV indicator is positive, and as a result, the proposed project pays off. The payback period of the Energy Efficient Home project is within 10,29 years, and the project is quite efficient. Taking into account the research data, it is planned to develop an algorithm for assessing the geomonitoring of environmental impacts in the development of green building projects.