Rzeszów is a provincial capital where a sudden increase in multi-family residential investments can be observed after the year 2014. Since then, over 60 residential complexes have been built, with more planned or already under construction. Such intensive development may carry certain negative effects, and that is why, the aim of this study is to analyze the quality of selected investments and their impact on the existing architecture. The information-gathering phase using data provided by the Rzeszów University of Technology. Based on this data and using the observation method, a division into 7 categories was made, which were used to evaluate the residential complexes. Within each category, semantic scales have been created with the help of professional literature, allowing for a detailed qualitative evaluation of the investments. Based on the results of the individual scales, general conclusions were drawn and included in the summary. This study, along with its results, may contribute to improving the process of designing new residential complexes within the existing architecture, both in Rzeszów and other Polish cities.