On university campuses, retrofitting studies have historically concentrated on individual buildings (or building components) instead of the entire campus. In the present paper, we examine how an incorporated strategic planning strategy might be used to investigate the socio-technical construction of a campus retrofit operation throughout multiple scale/sectors. The campus of the University of Oradea (CUO), Romania, with its beginnings in the 1910s was investigated using its new master plan. The developed strategies for a “green” and “healthy” campus depict a CUO redesign involving complex solutions for the green renovation of old buildings. In addition, the improvement effects of the modernization interventions already carried out were analyzed and quantified. Sixteen buildings (30% of the built area) were consolidated/rehabilitated/modernized, and/or equipped in the last decade, seven educational spaces being included in the circuit of the buildings fund (totaling 5491.59 sq m). For the renovated spaces, energy consumption was reduced by 20–88% and CO₂ emissions by 41.82–86%, depending on the specifics of each space. The reconfiguration, rehabilitation, and energy efficiency of the entire heating system of CUO (which uses geothermal water as a specific characteristic) significantly improved (20% decrease in energy and 21% decrease in geothermal water consumption). Our findings offer new directions and design solutions for the ecological modernization of other outdated university campuses, highlighting new perspectives in the green university campuses’ management, as a way to implement sustainability in the higher education environment. Data presented give professionals in the field (architects, designers, engineers, planners, and decision makers) a clear picture of the benefits due to ecological renovation, also offering the necessary tools to implement new solutions for reducing the impact of urban areas on the environment.

A very important problem encountered all over the world and increasingly widespread is represented by sustainability. The construction field is responsible for a high environmental impact, for the entire duration of a building’s operation, from the construction stage until its demolition. This paper presents a sustainability study, performed on an old historical building located in Romania—Arad County, which implied the consolidation of its resistance structure as a result of visible degradation. The study was performed using the Bob–Dencsak Calculation Model, which involved research into several specific parameters for each dimension separately (ecological, economic and social). Besides establishing the sustainability class for the consolidated building, an analysis was done on the impact that metal has as compared to reinforced concrete, thus resulting in the finding that metal is less sustainable than reinforced concrete, achieving growths of up to 42% for embodied energy and 28.50% of CO₂ emissions in the atmosphere. Finally, the paper offers recommendations for future sustainability assessment research with the aim of increasing the quality of life and minimizing the negative impact on the environment with minimal costs.

In the case of light structures membrane type the form is confused with the structure and vice versa. Thus the analysis process, non-linear type, the one for form finding is also a means of optimizing these structures. To respect the natural principle of minimum it is advisable that the structure’s shape is similar to the minimum surface area. The numerical problem solving is based on using finite elements with constant strain of soap film. Based on these considerations, the paper presents aspects of determining the shape of the membrane structure using finite elements of soap film.

The quantities of waste, especially solid waste, have increased rapidly; the evolution of modern technologies and the accelerated growth of the world’s population have led to serious consequences regarding environmental pollution and the impact on natural geosystems. Industrial and household waste landfills are special constructions; they must be executed with respect for stability both during their use and after their closure. At a global level, waste management has an important effect on the pollution of air, soil and surface water, as well as groundwater. Waste landfills are special structures that differ in their construction materials, working technologies and the waste that is stored there. The execution and systematic operation of landfills, as well as the monitoring of their behavior over time, are regulated by national legislation that is updated in accordance with and in accordance with the environmental protection regulations of the European Union. In this regard, the purpose of our work is the general description of landfills; the presentation was made based on the bibliography with the example of the landfill built in the municipality of Oradea. According to the updated EU regulations, waste must be sorted, recovered and recycled where possible. Through national strategies, the quantity must be gradually reduced, decreasing the pressure on landfills. All EU countries must align themselves with the requirements and regulations in this field, strictly respecting the technical and environmental protection requirements.

The harmonization between nature and construction, in the context of the development of human society, is a desideratum for protecting the environment; the advantages of a sustainable construction industry are reflected economically by increasing energy efficiency, reducing pollutants, and the consumption of natural resources while respecting the legislation and norms in the field. Climate change is mainly determined by the increase in the concentration of greenhouse gases released into the atmosphere, as a result of human activities in all fields, with particular emphasis on the construction sector. On the other hand, the construction sector is one of the most important pillars of economic growth in Romania. According to provisional data from the I.N.S., the construction sector represents almost 8% of GDP (Agerpres, 2025), being the largest share in the European Union (according to Eurostat data). The locality of Sântandrei in Bihor County is located in a strategic peri-urban development area, in the west of Oradea municipality, being one of the most dynamic communes in Bihor County. The development of the locality and its favorable location have attracted real estate investors in rapid and dynamic urban development. In order to become a model of sustainable and intelligent economic development, for Sântandrei the issue of renewable energies, sustainability and environmental protection represents a central point of urban development. The rapid population growth requires the application of a coherent strategic vision in accordance with Romanian and European norms regarding the construction of new, sustainable, ecological and efficient housing.