Rational use of the landscape system influences the entire ecological stability and quality of the territorial structure of the area. This requires a knowledge and evaluation of those factors, which have a positive or negative influence on its territorial or functional use. Negative influence of anthropogenic activity can be partially avoided or reduced by providing for the ecological optimisation of the territory.In this contribution is presented methodology, based on multi-criteria analysis, which evaluate the development potential of the area. There were assigned databases of main indicators modified for evaluation of the development potential of the area to localisation, selective and realisation assumptions with the emphasis to technical and civil facilities. Development possibilities of the territory are impacted by natural and anthropogenic factors that significance is expressed by value of index of environment quality.Above mentioned methodology was applied in condition of Hnilec valley (Hnileik) for three alternative variations of land using. Total index of environment quality (U) presents potential of the model territory for needs of its future development and it allows choice of optimal solution.