Sustainable landfill redevelopment is a concept that proposes restoration of a degraded environment, social benefits for the community and economic benefits for possible investors. In the scope of this study a conceptual framework for sustainable redevelopment is presented and applied as a post project analysis in the case of the hazardous waste landfill of Sovjak. A comparative representation of the results obtained by the introduction of the concept of sustainable redevelopment is provided. The comparison of the achieved results shows that sustainable redevelopment will provide social benefits to a community living in close proximity to the hazardous waste landfill; threats to human health are eliminated, property values are restored, and the project presents social progress, economic growth and the possibility of employment. Furthermore an overview of the present state of the environment influenced by the hazardous waste landfill of Sovjak is described. Emphasis here is given to contamination of groundwater, due to the specific karst terrain in which the landfill is located, and its threat to human health.