Residential Apartment Buildings Research Articles

Grey Wolf algorithmic framework for building energy optimization in India's Köppen-Geiger climatic zones

ABSTRACT Grey Wolf Optimization (GWO) is an emerging evolutionary metaheuristic technique capable of solving challenging engineering problems. Despite its growing popularity, GWO's suitability for building design problems remains unexplored. This paper presents a novel algorithmic framework using EnergyPlus, EPLauncher and Matlab to implement a single and bi-objective GWO for building energy optimization. The goal is to identify optimal wall and window type, orientation, air conditioner's operational profiles and cooling setpoints consistent with minimum annual and peak cooling energy demands for a residential apartment building in five Köppen-Geiger climate zones across India. In place of testing the entire parametric space involving 5,76,000 possibilities, GWO identifies the optimal solutions inside 1250 trials (∼99% run reduction). The single and bi-objective GWO produces (83-97)% and (75-95)% annual and peak cooling demand reductions than a typical construction and operation scenario in the five climate zones. The optimized solutions recommend low thermal transmittance-high capacitance wall sections, 10–15% window-to-wall ratios and double glazed windows with a low solar gain coefficient. Further, optimal air conditioner operational parameters (setpoint and duration) are identified. The presented algorithmic framework is highly robust and can integrate can incorporate upcoming metaheuristic algorithms to perform single and multiobjective building energy optimizations.

Methodological approaches to the assessment of public opinion during the overhaul of apartment buildings

In the article, using the example of a survey of residents of apartment houses (AH) on the quality of capital repairs, methodological approaches to assessing public opinion are considered. Processing the results of the survey showed that the definition of the coefficient of concordance is insufficient. It is shown that in order to assess the reliability of surveys conducted by the Delphi method, one should focus on achieving a greater confidence probability, and not on the value of the concordance coefficient. The survey showed that the priority factor for residents of apartment buildings of all ages and genders when assessing major repairs is the use of quality materials. For women of all ages, the issue of the cost of repairs was very important. Its importance for this group of respondents turned out to be almost at the level of the importance of the quality of materials. For the practical application of the results obtained, the weight coefficients of each studied factor were calculated for the total sample of respondents, which made it possible to create a methodology for express assessment of the quality of ongoing overhauls based on Harrington's verbal-numerical scales.

Economic features of services and energy cost for engineering systems

There are the results of some municipal services actual specific cost for residential apartment building. These services consist of cold water supply system; drainage and sewage systems; electricity; collection and disposal of municipal solid waste system. Authors did not indicate the specific operating cost for hot water supply and heating systems because their cost was constant. Research period: from 1st quarter of 2018 year to the 2nd quarter of 2022 year. This period was acute phase of Covid-19 pandemic period. Authors have written the dynamics changes in the cost of considered services. Researchers have presented additional factors which affect to the unit cost of municipal services in this paper. There is a brief overview of management companies types which could be in municipal service system. Also it has been considered their capabilities and limitations in creating tariffs process. Authors have identified different trends in the engineering service unit cost changing process. This article could be interested for management companies and tariffs planning departments of public municipal service system in different parts of Russian Federation. Results which were presented in this paper could be used in predictive mathematical models of municipal services economical parts in critical as pandemic or other emergency situations.

Теплопотребление жилых зданий на отопление и вентиляцию в процессе эксплуатации

The article studies seven heating seasons’ data of heat consumption of heating in 24-storey residential apartment building in St. Petersburg with ventilated façade, office and commercial spaces on the ground floor. It is established that heat consumption for heating depends on the year passed in operation of building since completion. During the first three years increased heat consumption is observed due to drying of walls of the building, which must be taken into account in a design of the building’s heating and maintenance systems. It is concluded that in a period of no less than three years since completion, operated building should be tested to confirm values of required specific energy heat consumption for heating in the heating season.

Огляд європейських тенденцій розвитку електротранспорту та його взаємодії з енергетичним сектором

An overview of the trends in the development of electric transport in European countries is presented, including the state and tax policy of supporting electric transport owners, the dynamics of the growth of the European fleet of electric vehicles, the development of charging infrastructure and the main principles of the interaction between electric vehicles and power system. The experience of countries that have successfully developed electric transport was reviewed, and it was found that the demand for electric cars mostly depends on the price of electric cars for the end user, infrastructure development and government incentive programs. The review also showed that, in practice, the wide spread of electric vehicles should occur simultaneously with the development of the corresponding infrastructure, as well as the development of systems for their interaction with the energy system and compliance with global environmental standards. The growing number of electric vehicles certainly requires special attention from network and power system operators, because the appearance of charging stations of various manufactures and capacities, installed in residential areas, private and apartment buildings, can lead to the number of problems, the emergence of which is associated with electromagnetic compatibility, overloading of electric cables and distribution transformers, safety of operation, that as a result can negatively affect the reliability and quality of power supply. There is also the potential risk that with a certain number of EVs, there will not be enough existing generation capacity and capacity of the electricity grid to charge EV batteries. The analysis of the principles of interaction between electric vehicles and power system in Europe showed that they are based on the concept of Smart Grid - smart or intelligent power supply networks, by means of which the electric vehicle charging system can be managed by the energy supplying company in order to solve a number of energy system tasks: increasing the efficiency of network infrastructure using, peak load shift and the development of smart grid infrastructure. Keywords: electric vehicle, electric charging station, charging infrastructure, power system, environmental requirements, the Smart Grid concept

Analysis of the Minimum Electrical Load of Residential Apartment Buildings in Urban Power Supply Systems

At present, a significant part of the studies of a residential apartment building electrical load concerns only the analysis of the maximum load at the residential building power supply input and on the buses of the transformer substation supplying power to residential buildings. However, for a complete analysis of the residential apartment building power consumption, it is necessary to evaluate not only the maximum input power, but also the minimum load. The article presents the results from an analysis of electricity consumption in residential apartment buildings with electric stoves (taking the city of Moscow as an example). The power consumption in eight residential apartment buildings recorded by electric meters in the input switchgears of these buildings at 30-min intervals for several years was used as input data for the analysis. The dynamics of minimum electrical load variation during a year is considered; the dependence of the minimum power on the outdoor temperature is estimated, and the time of the day, day of the week, and month in which the residential building minimum electrical load is observed are determined. The distribution law of a random variable represented by the time in which the absolute annual minimum of the residential building electrical load is observed and its characteristics: mathematical expectation and standard deviation are determined. The results of a comparative analysis of the absolute annual minimum and maximum (design) load at the input of residential apartment buildings are presented.

Use of double skin façade with building integrated solar systems for an energy renovation of an existing building in Limassol, Cyprus: Energy performance analysis

The high percentage of energy consumption by fossil fuels in the building sector in combination with climate change across the globe increased the need to move into more sustainable building practices. Thus, the integration of sustainable strategies and active solar energy systems into the design process is becoming a tool for the reduction of the energy demand and improvement of the energy performance of existing and new buildings.This study investigates the energy performance of an existing residential apartment building in Limassol, Cyprus before and after its energy renovation, using a double skin façade combined with building integration of active solar energy systems. The proposed research starts with the analysis of the existing building energy performance, focusing on the energy loads for cooling, heating, and artificial lighting. Subsequently, the results of the existing situation are evaluated using digital energy simulations, and the process moves on to the renovation and energy upgrade of the building by integrating the aforementioned systems. Energy-Plus simulations are performed where the proposed systems’ contribution to the energy reduction is investigated including their energy reduction potential. The before and after simulations are compared, with the focus to prove whether the systems can be viable in terms of decreasing the energy demands of the building. Finally, a life cycle cost (LCC) analysis is performed, to determine the viability of the enterprise. The performed research proves that the application of the double façade, consisting of three main features — a building integrated photovoltaic system (BIPV), glazing system and rambling planting, can combine the positive effects of each individual system, if there is a combined systematic approach on the architectural design of the building envelope. The combination of the above led to a reduction of 83.5% in the energy consumption of the building, from 94,321 kWh of the existing situation to the 15,563 kWh of the proposed one. This reduction includes the contribution from BIPV system, which amounts to 26,706 kWh/ year of primary energy — thus covering the 63% of the proposed consumption of the building. On the other hand, the LCC analysis sums that a careful combination of bioclimatic design and active solar systems, can have a viable payback period, which in this case is 13 years.The overall aim of this research is to determine whether the use of a double skin façade combined with integrated active solar systems constitute an energy and cost-efficient solution for the viable refurbishment of an existing building in the south-eastern Mediterranean area.

Predictability quantification of occupant presence in high-rise residential apartment buildings

In recent decades, many studies have attempted to develop a reliable occupancy model using either rule-based, stochastic, data-driven, or agent-based approaches. These are based on the hypothesis that occupant presence can become predictable provided sufficient knowledge and data are provided. However, a different view propounds that occupant presence could follow a random-walk pattern or become unpredictable in certain types of rooms/buildings, for example, university labs and library buildings. In this study, the authors report the predictability of occupant presence in high-rise residential apartment buildings in South Korea. The authors collected occupant presence data from 31 households over 147 days using occupancy sensors installed in each household. The predictability of occupant presence was then analyzed using the normalized cumulative periodogram (NCP) and Bartlett’s test. It was found that (1) the predictability of occupant presence is significantly influenced by temporal and spatial resolutions, (2) extending measurement periods (e.g., 7 days vs 147 days) can increase the predictability of occupant presence, (3) for a measurement period of 7 days, the occupant presence for 14 households became unpredictable, and (4) the predictability of occupant presence significantly differs among 31 households.

RESIDENTS’ EXPERIENCE IN TIMBER APARTMENT BUILDINGS IN FINLAND

ABSTRACT Residents’ attitudes towards new bio-based products such as wood play an important role in the anticipated transition towards a forest-based bioeconomy. Timber apartment buildings (over two-story) represent a modern bio-based business opportunity for endorsing low-carbon urban housing. This paper investigated residents’ experience in timber apartment buildings in Finland. In this study, a questionnaire was conducted among residents. The 308 received responses highlighted that: (1) residents were mostly quite satisfied with their current residence, living environment, and apartment’s functionality, (2) respondents had generally a positive attitude towards overall appearance and architecture of their buildings, (3) the majority thought that ecological issues would influence their own choice of residence, (4) presence of fire alarm system and automatic sprinkler system were assessed as the factors that improve life safety, (5) participants mostly drew attention to the properties of timber apartment buildings regarding good sound insulation and good indoor climate, and (6) surveyed residents would most like to move into two-story residential buildings and apartment buildings. These results will help provide a better understanding of the contemporary timber residential market and constitute a basis for interested parties e.g. policymakers, developers, and construction companies to pave better ways for future housing development in Finland.

The Effect of Different Specifications of Passive Spaces on Residents’ Satisfaction in Adjoining Spaces ‎within a ‎Hot Dry ‎Climate

Passive spaces are a passive design strategy that aims to reduce energy ‎consumption ‎and increase ‎user ‎satisfaction ‎in buildings. One ‎example of passive space is ‎the air shaft. The air ‎shaft ‎is a ‎vertical void within the building from the ground level to the roof level, and it ‎provides the ‎building with ‎natural ‎ventilation ‎and ‎daylight, ‎especially in deep-plan ‎buildings. However, ‎the ‎function of the ‎air ‎shaft ‎is ‎questioned ‎due to its impacts on residents’ needs. ‎This ‎study assesses the effects of air ‎shaft ‎specifications on ‎residents’ ‎satisfaction with the indoor ‎environment ‎quality of ‎air shafts and ‎adjoining ‎spaces. Survey ‎questionnaires were ‎distributed ‎to ‎residents of ‎apartment ‎buildings. The results ‎proved that air shafts ‎have a ‎significant ‎negative ‎impact on ‎residents’ ‎satisfaction. The ‎findings of cross-tabulation ‎analysis illustrate a significant ‎relationship ‎between ‎the air ‎shafts’ specifications and ‎the ‎residents’ answers.‎ The ‎analysis also showed that the air ‎shafts ‎that are ‎closed from the ‎bottom and include A\C outdoor units ‎have a more negative ‎impact on ‎the thermal ‎environment and ‎air quality. Regarding ‎the air shaft areas, the small areas have ‎a ‎high ‎negative ‎response regarding bad smell, the view, visual ‎and ‎acoustic privacy, and thermal ‎environment. ‎From ‎the ‎indoor ‎environment quality perspective, this ‎study ‎emphasizes ‎the need ‎to consider the ‎impact of ‎air ‎shaft design on a ‎building’s ‎performance ‎and ‎residents’ ‎satisfaction. The results of this study are expected to contribute to the development of future passive spaces design.

The spread of fire from an open car park on the ground floor of a residential building

Introduction. The problem of car parks and parking spaces is relevant in many large cities, and it requiresthe optimization of parking spaces. The arrangement of open car parks on the ground floors of apartment buil­dings is an effective way to organize car parks in a house in addition to covered parking lots. In this regard, in order to assess the fire hazard of such a design solution, it is necessary to study the spreadability of fire from an open ground floor parking lot to upper floors and develop reasonable proposals for the development of new and optimization of effective fire safety requirements.Goals and objectives. The goal of this work is to study the spread of fire hazards using the field modeling of the car burning process in an open parking lot on the ground floor of an apartment building and to assess the possibility of the fire safe arrangement of such parking lots in residential buildings.Method. To achieve the purpose of the study, the field (CFD) modeling of the fire development pattern was performed using FDS computer software. In the course of modeling, the authors analyzed the spread of the fire hazard from an open parking lot, located on the ground floor, to the upper floors of a residential building.Results and discussion. Temperature distributions, smoke and heat flows at various points in time were obtained as a result of modeling the development of fire in a parking lot. The results of calculations allowed to evaluate the effectiveness of various types of fire barriers and determine their parameters to meet the condition of the non-proliferation of fire. The most optimal solution is a non-combustible visor made of fire-resistant materials and installed above the opening leading to a parking lot. Given the results of the work, a set of necessary fire-figh­ting actions are proposed to ensure the possibility of arranging open parking lots in residential apartment buildings.Conclusions. It is shown that the fire safety of residential apartment buildings that have open single-level parking lots is achievable in case of the use of fire-resistant bearing and enclosing building structures, non-combustible materials for cladding, finishing the facade of a building, as well as in the case of making a canopy, a balcony or a gallery above the opening that leads to the parking lot.

Waste heat recovery potential in residential apartment buildings in Finland's Kymenlaakso region by using mechanical exhaust air ventilation and heat pumps

With the growing share of ventilation heat loads, the heat recovery over the mechanical ventilation systems appears as one of the key solutions to reduce heat loss and generate energy savings. Finland's long-term renovation strategy aims for a highly energy-efficient and almost carbon-free building stock by 2050. One of the greatest potentials for energy savings relates to those built between the 1960s and 1980s where no heat recovery exists. This study addresses the wasted heat potential of apartment buildings in the Kymenlaakso region in Finland and how EAHPs can utilize it. The wasted heat potential was mapped by selecting buildings of different ages in Kotka from the 1950s to 2010 and for which the thermal energy balance was determined. The apartment buildings with mechanical exhaust ventilation in Kymenlaakso were surveyed. If all the mapped exhaust air waste energy could be utilized by EAHPs, it could produce the thermal energy combined from different decades up to 18.7 GWh/a in Kotka and 36.8 GWh/a in Kouvola. The calculated annual reduction in CO 2 emissions might be about 590 and 944 tCO 2 in Kotka and Kouvola, respectively. The calculated payback periods varied from 7 to 13 years for the selected buildings.

Influence of open and closed windows on the vertical spread characteristics of fire

In order to systematically explain the spreading mechanism of vertical fire, Pyrosim software with fire dynamic modules is used to simulate the fire spreading characteristics in a five-storey residential apartment building. The vertical spread characteristics of fire, high-temperature smoke, and leap-frog behavior are analyzed by evaluating the distribution of pressure, temperature, and gas flow velocity in the studied numerical fire field. In addition, considering the possible cases of high-rise building fire in reality, the fire spreading characteristics of three different opening sequences of glass windows are given: (i) only the windows on the first floor are open; (ii) the windows are randomly opened by the high temperature of the glass; (iii) all glass windows from the first to the fifth floors are open. The simulation results show that an appropriate increase of turbulent flow in the low-level area can greatly reduce the fire temperature in the high-level area, which can provide a certain reference for the safety and design of building fire protection in the future.

Readiness of apartment building residents for hot water supply modernization in Ukraine

Kudinov I. О., Serheieva K. М., Klymenko A. О.Readiness of apartment building residents for hot watersupply modernization in Ukraine. – Article.Features of social and institutional readiness of residentsof apartment buildings (condominiums) for reforms ofcentralized hot water supply in Ukraine are analyzed.The paper represents results of social survey research ofresidents of apartment buildings in Zaporizhzhia (Ukraine).The methodological basis of the research is generallyscientific and special sociological methods of scientificcognition. The research determines socio-demographic andinstitutional characteristics of centralized hot water supplyservices consumers in Zaporizhzhia, the level of interest inthe preservation and modernization of centralized hot watersupply system in the city, the level of readiness of apartmentbuilding residents for collective responsibility for theconsumption of hot water supply services and strategies formodernization of the centralized hot water supply system.Research results identified possible ways to increaseapartment building residents’ readiness for modernization:1) development of the subjectivity of the apartmentbuilding residents, because it is impossible to solve commonproblems of such buildings in case of unity absence of theirinhabitants; 2) increasing the level of social interactionbetween the community and local authorities; 3) developinstitute of social organizers (social technicians). Researchresults suggest that condominium residents of Zaporizhzhiashow a very low level of awareness in the field of housinglegislation and the condition of their own buildings and thefact that every such resident understands the feasibility andneed to modernize the existing hot water supply system.The main obstacle to the modernization of hot water supplysystems is the need to attract large financial resources.The second – is the unwillingness of apartment buildingresidents to cooperate. One of the ways to solve the problemis to provide a quality information campaign to raise publicawareness of: financial capabilities for apartment buildings;better practices of project activities of OSBB buildings.

Adjustable Internal Shading for Home Office Daylighting in Tropical Climates

Home-based workspaces have considerably increased all over the world. Besides, the recent outbreak of the COVID-19 disease forced many people to work from their homes. However, existing residential apartment buildings (ERABs) had been designed for accommodation but not for office works. Low-quality visual environments in ERABs, which have no shading controls on their windows, are evident in tropical climates with extremely high solar radiation. Thus, interior retrofit is significant to provide visual comfort for users in ERABs with low flexibility for modification of their facades. Different interior design variables were simulated by the Radiance-based program to analyse daylighting in a closed-plan room. Before the simulation experiments, field measurement of daylight was performed under a tropical sky to validate the results, and the findings revealed significant Pearson correlations. This paper showed that ERABs are confronting extremely high indoor daylight quantity, up to 10,228 lx, and low quality with intolerable glare. An adjustable model of internal shading, including an integrated Venetian blind with a horizontal light shelf and the window films, was proposed to improve quantitative and qualitative performances of daylighting in tropical regions. This dynamic model could be adjusted to various positions based on daylighting conditions in the buildings. By comparing the simulation results of this model with the base model, indoor illuminance levels could successfully reduce from 32% to 86%; Illuminance Uniformity Ratio (IUR) and Target Daylight Illuminance (TDI) significantly improved up to 180% and 300%, respectively; Daylight Glare Probability (DGP) and CIE Glare Index (CGI) changed from intolerable to imperceptible status. Accordingly, the proposed model can considerably improve daylight quantity and quality in the test room during different times. This study concludes that the dynamic model of internal shadings could provide efficient daylighting, by decreasing the extremely high indoor illuminance and glare in the ERABs in tropical climates.

ОТЕЧЕСТВЕННЫЕ И ЗАРУБЕЖНЫЕ ВИДЫ ОБЪЕКТОВ РЕДЕВЕЛОПМЕНТА ПОД ЖИЛЬЕ

Manufacturing has historically been the driving force behind economic growth and structural change. During the financial and economic crisis, governments in Europe provided short-term assistance to industries that had fallen into disrepair by converting them into market-oriented industries (such as steelmakers and car manufacturers). As cities grow and the density of megacities increases, the need for their "renewal" began to appear, which is characterized by the transformation of non-functional buildings and old abandoned buildings for the purpose of further operation. The state and private organizations were interested in the transformation of such territories and actively invest in these projects. Industrial complexes are transformed into areas with residential apartment buildings and offices, their own social infrastructure, transport, entertainment reflecting the needs of modern society. In the future, urban areas can benefit greatly from new opportunities. All over the world, industrial territories are an integral part of cities. The article discusses the experience of reconstruction of industrial zones in Russia and abroad. The industrial heritage is adapting to the new context of the city, using the principles of sustainability, economy and aesthetics

An evaluation of the policy and practice of designing and implementing healthy apartment design standards in three Australian cities

Apartment development has proliferated around the world; however concern about design quality has prompted the introduction of comprehensive apartment design policies. Effective implementation of these policies promises to improve design outcomes and create apartments conducive to good health. This study benchmarked whether design requirements linked to health and wellbeing from three Australian states, each with different levels of design governance, were being implemented. Residential apartment buildings (built 2006–2016) were sampled from Sydney, Perth and Melbourne. Data were extracted from plans and elevations to calculate the implementation of quantifiable policy-specific requirements (n = 122) for all residential apartments (n = 10,553) and floors (n = 1094) within the buildings (n = 172). Scores were computed for design objectives (e.g., indoor and private open space, daylight, natural ventilation, acoustic privacy, visual privacy) and overall policy implementation. Sydney and Perth buildings implemented 60% and 55% of all the measured requirements, respectively, whereas Melbourne implemented 43% (p = 0.000). At the time the buildings were developed, Sydney had a comprehensive performance-based design policy and Perth had some prescriptive design standards, whereas Melbourne had discretionary design guidance only. While local contextual factors also contributed to on-ground design outcomes, the findings underscored the importance of design regulation in delivering contemporary apartment buildings that include the design features that could promote residents’ health.

The ecological resource of an urbanized territory

The urbanization process is accompanied by the growth of cities and an increase in their population. Modern cities are highly complex systems that comprise material and non-material elements of life of urban residents. The development of the urban economy shapes the demand for housing and utility services. Consumer requirements have changed over the years. The aspect of environmental protection and rational use of natural resources from the standpoint of the biosphere approach is to ensure the environmental safety of residential areas in urbanized territories.
 The analysis of statistical information and analytical reviews, available in the open-access sources, is carried out in the context of (1) the housing construction in the subjects of the Russian Federation, (2) ensuring the quality of the urban environment in the regions, (3) satisfaction of the local population with the living conditions in a quarter and in a city. The emphasis is placed on the volume and pace of construction of residential apartment buildings in the Russian cities from 2019 to 2021, consumer requirements for apartments, houses, and landscaping.
 The ecological resource of an urbanized territory represents the rate and quality of the housing construction, including urban planning, volumetric planning, constructive and technological solutions, as well as the current state of the urban economy, including the volume and quality of housing and utility services provided to the population.
 A system of parameters for calculating the ecological resource of residential areas is proposed for discussion, including the estimated indicators of the results of urban planning activities at the stages of the life cycle of a territory and the underground, surface and above-surface facilities that it accommodates. Macro-level design includes the accommodation and construction of permanent construction facilities, linear facilities and their infrastructure; the landscaping of the territory, as an element of the “green” urban framework; a system for handling solid municipal, bulky and hazardous waste. The micro-design is an ecological resource at the level of structural elements of a residential zone, it encompasses a residential area, a micro-district, a block, a complex.

BIM for construction clash detection process after design stage: a case study of high residential complex in Nur-Sultan city

The construction industry is one of the most unpredictable and human-dependent sectors of production. This is due to the large flow of information during construction, which requires clear organizational activities. Traditionally established methods of communication on construction sites require modernization. That is why the concept for practitioners "Building Description System and Construction Product Modeling" was developed in 1970. The building society supported this concept and called it "Building Information Modeling" - BIM. The new wave of digital design required a strong material and technical base, the analysis of existing documentation and the creation of design tools began. The authors of the article use the highly specialized NavisWorks software to analyze possible losses as a result of combining the existing design documentation into BIM models on the example of one of the Nur-Sultan projects. The residential complex located in Nur-Sultan was chosen as the object under study. The residential apartment building was chosen because of the scale of the project and its full implementation in the BIM system. The article makes a comparative analysis on finding the intersections on the principle of combinatorics. The section of structural and space-planning solutions is checked for intersections with the sections of heating and ventilation, water supply and sewerage, then the logic is repeated. Exceptional combinations are selected to check for conflicts (collisions).

Reducing the carbon footprint of buildings to improve sustainable development mechanisms of the construction complex

The construction industry’s impact on the environment is overwhelming. Construction and industrial activities account for about 40 % of the global energy consumption that translates into about one third of global greenhouse gas emissions. The rapid growth of property development and attention to global climate change make the reduction of greenhouse gas emissions a promising area of research. The importance of the carbon impact assessment throughout the life cycle of buildings implies the improvement of emission reduction methods associated with the production and transportation of building materials, selection of optimal design solutions. Evaluation becomes key to the economic modeling of green low-carbon construction. The article addresses the current methods of the eco-economic assessment of the carbon impact of residential buildings at early stages of construction projects. Key construction resources, critically affecting the eco-performance of buildings, are identified. The comparative analysis of functionally equivalent design solutions for mid-rise residential apartment buildings, designed and constructed in the Belgorod region, is carried out. The study shows that the introduction of low-carbon principles into the design of residential buildings should and can be supported by the improved eco-economic evaluation of the construction project efficiency. This allows to capitalize the carbon impact of residential buildings and stimulate the use of effective green low-carbon motivation tools in the building market.