This diploma work presents issues about derelict sites in Slovenia. Derelict areas represent territorial potential for further development of the activities. Guidance of the spatial development degradation is reflected in a rational use of the region and protects the purpose of use of other lands (for example: agricultural). Unfortunately, we do not know the exact numbers, size and diversity of derelict sited, areas are not recorded, solutions for this problem are not systematic. In the Statistical Region, we can see many of the areas, that are undergoing a degradation for a longer period, or they are undergoing a ceasing activity, which leads to derelict sites. In my diploma, I focused on the town Medvode and its surrounding. The purpose of my work is not to record all the derelict sites for this addressed area, but to identify learning examples for each type of derelict sites and their detailed presentation. Based on the record, that was carried out with the help of the census documents; an analysis of derelict sites was made. The results of the analysis were compared with the results that were obtained in a project with the title: Sonarava Sanacije okoljskih bremen kot trajnostno razvojna priložnost Slovenije.