The article presents the results of the analysis of defects revealed by the supervision inspector during the acceptance of works in one of the Krakow multi-apartment buildings. During the tests, it was found that the most frequently occurring defects include: cracks in walls and ceilings, scratched glass, lack of straight angles between the walls or scratched window sills. There is an average of 11.32 defects per apartment and 0.23 defects per square meter of apartments. It was revealed that

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... y significant, significant and insignificant defects had a similar quantitative share. A procedure for the reception of apartments was proposed, which will be the basis for the development of a mathematical model supporting decision making at the time of acceptance.