The thesis studied, described and analyzed ordinances on the amendments and supplementation of spatial planning elements, adopted in the period of 1986-2013, as well the categories of basic and detailed planned land use, which were connected on the basis of the Rules on Preparing of Spatial Elements of Long-term and Medium-term Plans for Municipalities in digital form in 2003 and the Rules on the Content, Form, Method of Preparing a Municipal Spatial Plan and conditions for determining rehabilitation areas for dispersed building, development areas and enlargement of settlements, in order to ascertain changes of planned land use in Metlika and Semič municipalities. The acquired amendments of basic and detailed planned land use for the Metlika and Semič municipalities between the treated spatial planning document,s which were acquired with an analysis, were described, as well as numerically and graphically presented. The scope of individual category of basic planned land use per capita was also ascertained with an analysis. The final results show that the construction areas in Metlika municipality and the town of Metlika diminished, while they increased in Gradec. Also, the scope of construction areas per capita in Metlika municipality and the town of Metlika diminished, while it increased in Gradec. Semič municipality and the town of Semič are recording an increase of construction areas, while the scope of the construction areas per capita in the whole of Semič municipality is diminishing, while it is increasing in the town of Semič.