A holistic approach to the planning of new urban areas, i.e. the revitalization of existing public green spaces is one of the guidelines of sustainable cities. In complex urban structures, where we have a situation of increased building without adequate infrastructural upgrades, the quality of life often degrades. Spatial analysis and field research of the area of Gornja Dubrava city district identified the types of public green spaces and determined their condition, accessibility and connectivity. The results showed that the total share of landscaped areas in the district is not adequate, and the facilities and purpose do not meet the needs of the users. The research confirmed the existence of numerous unused areas in the urban structure, but also the existence of extremely high-quality natural and semi-natural areas that can be connected to a complete system of blue-green infrastructure of the district through their revitalization and implementation. This paper has highlighted the most significant locations, which can significantly improve the quality of life in the city district even with minor interventions through natural sustainable solutions. The locations with the greatest potential were conceptually elaborated in such a way that possible solution models, i.e. guidelines for revitalization were applied to them.