The rapid development of urban areas necessitates a comprehensive understanding of the environmental implications of construction projects, particularly within urban development clusters. This paper discusses the significance of analyzing construction projects, focusing on their carbon potential impacts on the environment. Construction projects are among the largest consumers of natural, material and energy resources, resulting in a carbon footprint that contributes to global climate change. The technological transition to zero-carbon energy sources and low-greenhouse-gas-emitting building materials is setting new trends in the design and implementation of construction projects. This includes achieving a balance between anthropogenic emissions and their uptake by ecosystems - carbon neutrality throughout the building life cycle. As a consequence, the increased focus on global climate change makes reducing the carbon footprint of a building over its lifetime a promising area of research. The novelty of the research is the development of a technology to quantitatively assess the carbon impact of construction projects, facilitating the introduction of low-carbon organisational and technical solutions at all stages of the building life cycle. The methodology of environmental safety management of buildings with high carbon homeostasis for forecasting of comfortable living conditions developed by the authors is based on the systemic representation of the natural-technogenic system of the integrated development of territories in the form of an open dynamic structure. The research is carried out on the basis of the formation tools of the author's factor space of complex carbon impact assessment, ranking and polycriteria comparison of quantitative environmental safety assessment of buildings for selecting the optimal desisions, use of the apparatus of optimisation target setting and carbon neutrality modelling. The implenetetion of the proposed technology can reduce the carbon impact of a project by up to 40% over the building life cycle, maintaining the economic incentive to develop low carbon construction, preventing climate change and ensuring that the construction industry achieves carbon neutrality.