The thesis firstly presents the spatial planning legislation from 1984 till today. Secondly it presents the spatial planning acts of Grosuplje and Ivančna Gorica municipalities such as Ordinance on Changing and Amending of the Spatial Elements of the medium and long-term plan and of the Municipal Spatial Plan. We compared the spatial components of the mediumterm plan of the municipality and the applicable municipal planning at the basic land use between both selected municipalities. Detailed land use is also presented, for the largest settlements in the municipalities Ivančna Gorica and Grosuplje, which were also compared to each other, and identified areas of differences in spatial components of the Urban plan 2004 and the currently valid acts of Municipal Spatial Plan for the municipalities. The data gained from the comparison were edited and analyzed in the ArcGis 2.2.1 program and the results were presented in tables and charts. We established that in both municipalities the increase of building area and decrease of agricultural land and forest land is taking place.