EN
The article is concerned with the application of the principle of sustainable development in local planning. The authors studied the way local self-governments fulfil the duty of informing the society about the conditions that the natural environment imposes on the authorities who define and implement spatial policy. The information about the environment's predispositions towards various ways of development is included in ecophysiographic studies. Such a study should mandatorily precede any definitions of spatial policy included in the study of conditions and directions of spatial management in every commune. The authors thoroughly analysed the graphic enclosures to all physiographic studies prepared for the needs of preparing a study of conditions and directions made accessible by local self-governments in the Internet. On this basis they assessed the variability of the presented information and the abundance of the contents of these documents. The result of the analysis shows that most of the documents have a low substantive value, which allows many communes to formulate spatial policies that obviously violate one of the main planning principles or sustainable development.