Construction, like any other economic activity, can contribute to national income by creating employment opportunities, and raising gross domestic product (GDP). Several researchers have studied the challenges of various aspects of the construction industry (CI), ranging from sustainability, the industrial revolution, small and medium enterprise, building information modelling, and intelligent construction, but this research examines the state of the CI in conflict-affected regions by evaluating the challenging factors impacting this sector of the economy. A total of 150 industry experts participated in this survey across three regions (Africa, Eastern Europe, and the Middle East). In total, 35 challenging factors were identified and classified using exploratory factor analysis (EFA). Using version 4 of Smart Partial Least Squares (PLS), structural equation modelling (SEM) was used to build the model, which produced seven constructs: economic, environment and education, government, industrial, sustainability, technology, training and support. 31 challenging factors were outlined under these constructs, with economic challenges such as high inflation, high-interest rates, and foreign direct investment (FDI) being the most critical of those observed. This study will be of great importance to the governments of nations in the formulation of policies for the CI. At the same time, stakeholders in the CI will collaborate in the advancement of the sector in the affected region.

The analytical part of the article describes the situation after 1990s, when the residential housing stock in most Central and Eastern European countries was privatized, in poor condition, and required costly major repairs at the expense of new owners, which was impossible in terms of finance. In this situation the building maintenance and operation functions are transferred to private or municipal management companies, or remain executed directly by owners’ organizations. The article examines existing services proposed to customers as residents, not taking account the functions of residents as building co-owners. The authors studied the relevant theories and legislation, comparing the current building maintenance and facility management functions to strategic functions of asset and property management. It was shown that the different interests of consumers and owners should be covered by different functions of professional managers. The obstacle is that the structure of residential housing management companies mixes them in a dual customer and owner body. This creates contradictions between the aim to minimize customer’s expenses and the need to preserve assets and property. A conclusion was reached to separate the ownership and property management of houses.

The subject of the paper. is to study the mechanisms for investing in residential renovation in the context of the Sustainable Development Goals. At the same time, sustainable development is considered both from the point of view of safety and environmental friendliness of residential buildings, and from the social point of view of providing housing to citizens from strategic perspective. It is shown that the current sustainable development goals, the definition of indicators of their achievement do not cover the problem of housing deterioration, which is one of the most acute for national and social security, as well as the financial stability of the state. Therefore, the achievement of SDG-11 in Ukraine is in a high risk zone given the catastrophic state of housing, the scale of the problem, and the high cost of its renovation for insolvent households; this does not solve the problem only at the expense of homeowners as follows from the essence and functions of property owners. The situation in Ukraine differs from European countries in that the state is impossible to further subsidize the owners on a large scale. This requires a combination of public investment in renovation of residential real estate with property reform, transforming part of the housing stock into social housing. As the implementation of housing projects concerns the local level, the general shortcomings of strategic management are shown, where there is no vision of communities to solve the problem. Methodology. Based on the methodological developments of the authors on the insolvency of homeowners in Ukraine (A. Shcherbyna), criticism of unjustified approaches to co-financing by residents and local authorities of renovation projects in Kyiv (O. Popeko), and the need to justify and evaluate investment projects to achieve sustainable development goals (S. Kovalivska), the article forms a comprehensive approach to solving the problem in terms of all three aspects. Therefore, the purpose of the paper is to deepen the formulation and analysis of methods to achieve Sustainable Development Goal 11 "Make cities and human settlements inclusive, safe, resilient and sustainable" with the help of provisions on sustainable housing for citizens based on a project-oriented approach and mechanisms for financing projects using public-private partnerships of homeowners with local authorities, as well as taking into account sustainable development goals. Practical implications. The main directions of further progress in reforming property relations in the housing sector and creating tools for intensifying partnership mechanisms at the vertical and horizontal levels in the public administration system are identified. Results. The proposed methodology provides for the selection of projects for budget support and development of recommendations for their implementation, taking into account SDG in several stages: pre-selection based on cost-benefit analysis; assessment of the impact of the project on SDG (determination of the SDG identity of the project based on a quantitative assessment of the impact of its objectives on SDG and vice versa); determination of the volume and type of budget support (rating of projects based on a comprehensive analysis of their commercial, budgetary and social efficiency, adjusted for the level of manufacturability, export orientation, and SDG identity); development of recommendations for project implementation, which take into account the approaches to assessing the impact of the project on SDG and, conversely, the achievement of SDGs or the risks of their failure to achieve project objectives (4). Value. To link SDG with budget planning, it is proposed to introduce an additional classification of budget expenditures on SDG, which will help to reconcile strategic and budget planning with investment in order to achieve SDG, including in the process of ensuring state participation in programs and projects for renovation and construction of housing based on the concept of sustainable development.

W artykule opisano wady dualistycznego modeluwasnoci mieszkania i zarzdzania budynkami wielomieszkaniowymi(kondominium), ktre pojawiy si w krajach postsocjalistycznychpo prywatyzacji i byy spowodowane niewaciwymotoczeniem instytucjonalnym. Przedstawiono rwnie oglnproblematyk stosowania modelu kondominium dla nowoczesnychi duych kompleksw mieszkaniowych oraz w trudnychsytuacjach braku rodkw finansowych na remonty budynkw.W takich przypadkach zamiast dalszego komplikowania zarzdzaniawsplnotami mieszkaniowymi uzasadniona jest celowoich przeksztacenia w jednolity model korporacyjny wsplnejwasnoci domu.Sowa kluczowe: mieszkania, nieruchomoci, model, kondominium,przedsibiorstwo, zarzdzanie.

Every stakeholder’s intention in a project is to have the best quality and minimize rework. But there are hurdles that come up during the stages and processes of a project that can compromise the quality if not handled correctly. This study aims to identify the influencing factors that affect subcontractors’quality of work and the impact of flexibility. Construction professionals from Poland and Nigeria participated in the survey. Descriptive statistics using IBM SPSS software version 27 was used to analyse the data. The results obtained shows that there are several variables influencing subcontractors’ quality of work, the overall ability of the subcontractor to ensure that the project meets the basic function of the end user's needs and intents, the degree to which the construction operations meet the design standards and specifications, strict adherence to quality assurance plan on general performance, subcontractor's ability to complete the contract on the completion date and the ability of the subcontractor to carry out the construction work with little rework, were identified as the major factors that affect the quality of work. Further analysis shows that the impact of flexibility on the subcontractors’ quality of work could increase the smooth operation of the construction processes, increase compliance with the quality specifications, helps in effective decision making and effective functioning, limit non-conformities between planning and realization of work, and reduction in rework errors. The main contractors sometimes substitute or chnage the subcontractors. This study identify poor quality of work, failure to meet the deadline, use of inappropriate material and non-conforming to quality standards as some of the reasons for this change.

From a scientific perspective, the approach proposed by international organizations to investing in social housing in the reconstruction of Ukrainian cities is considered. The basic model of a municipal housing company is analyzed, for its initial lending and further functioning on specific principles of self-sufficiency at the expense of rent for social housing. The current institutional approach to urban reconstruction through the creation of municipal rental social housing companies with the support of the European Commission and the EIB within the Ukraine Facility is analyzed, which is focused on new construction with combined financing (soft loans/donor funds) and further self-sufficiency through rental payments and cross-compensation between residential and non-residential premises. The aim of the article is to identify areas for improving the basic model, which is caused by the scale of needs in social housing, which cannot be satisfied only by the proposed mechanisms. The purpose of the study is to identify the limitations of the basic model, correlate them with the capabilities of current legislation and the extraordinary conditions of wartime, and propose directions for expanding the tools for forming a social housing fund. The methodology is based on a comparative analysis of the regulatory criteria for social housing, sources and forms of financing, types of ownership and management, local linkage and quality standards, involving 15 systemic criteria (target groups, purpose, type of housing, ownership/management, market position, etc.). The methodology of the analysis consists, on the one hand, in systematizing the essential characteristics of social housing, and on the other - in taking into account the specific needs of citizens in the war and post-war periods, as well as the specific conditions of specific cities. The conclusions and proposals concern a critical analysis and limitations of the application of the self-financing basic model for significantly reducing the cost of housing rent, as well as the problematic nature of its sustainable functioning if tenants are required to pay the full cost of housing and communal services. Therefore, the tasks of improving the model are justified..