An increasing urbanization poses a threat in a form of an uncontrolled transformation of landscape from permeable to impermeable. This has negative consequences on the integrity of both natural and anthropogenic environments. Such process gradually increases the surface runoff which poses higher flood risks and subsequently contaminates surface waters with pollutants that can accumulate in streets, motorways, car parks and even lawns in urban areas.A human comfort is significantly reduced in summer times due to the increase in impermeable surfaces and an urban heat island effect. Aquatic and terrestrial ecosystems are deteriorating or disappearing due to an increased demand for commercial, industrial and residential areas that are consuming more and more space. Finally, a destruction, the changes of the canal flow, a transformation of the forests and agricultural areas into residential sub-areas, building the shopping centers and car parks are reducing the aesthetic quality of many urban catchments.The following diploma thesis consists of four chapters. The first chapter explains the basic theoretical aspects of the subject. The second chapter is dedicated to the goal of the thesis as well as its partial goals, which we managed to achieve. The main concern of the third chapter is the methodology which was necessary to accomplish the objective of the thesis. A last chapter focuses on the results of our work, whom we have achieved with the right methods.The spread of impermeable surfaces in the town of Zvolen is causing 47.8 % of the total mapped area to prevent the natural soaking of rainwater into the soil. This process is currently advancing due to the ever-increasing share of built-up areas, buildings and roads in urban catchments.