## 4 Presentation of Results and Discussion
In Category C11 (Space flexibility and adaptability), the most important was I27 (Availability and accessibility to social areas), closely followed by I28 (Space optimisation). Within Category C12 (Life cycle costs), I32 (Operational costs) was considered more important than indicator I31 (Initial cost). In what concerns Category C14 (Corruption avoiding plan), Indicator I34 (Sustainable purchase policies) was proposed by the experts, and the results disclosed it as the most important category within the Economy Area. In Category C15 (Environmental management systems), the most important was I36 (Infection control), and in Category C17 (Security), I39 (Occupants' safety) was more important than indicator I40 (Responsible construction practices). Finally, the most crucial indicator in Category C23 (Conveniences) was I46 (Accessibility to public transport). Finally, the weight of each category within the areas is presented in Figure 3. The category with the most significant impact on an area was C23 (Conveniences), representing 67% of the A5 (Site) total. Nevertheless, the importance of the Site area in the overall sustainability level is only 8%. The categories with the lower influence were C8 (Landscaping) and C9 (Passive design), which belong to the \"Sociocultural and functional\" area, having weights of 3% and 4%, respectively. \begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**Area**} & \multirow{2}{*}{**Category**} & \multirow{2}{*}{**Indicator**} & \multicolumn{2}{c}{**Weight**} \\ \cline{3-5}  & & & **Indicator** & **Category** \\ \hline \multirow{8}{*}{A4. Technical} & C15. Environmental management systems & I35. Environmental management plan & 24\% & \\ \cline{2-5}  & & I36. Infection control & 62\% & 19\% \\ \cline{2-5}  & & I37. Reducing noise pollution & 14\% & \\ \cline{2-5}  & & I38. Efficiency of lighting and air conditioning systems & 100\% & 39\% \\ \cline{2-5}  & C16. Technical systems & I38. Occupants’ safety & 75\% & \\ \cline{2-5}  & C17. Security & I40. Responsible construction practices & 25\% & 18\% \\ \cline{2-5}  & C18. Durability & I41. Materials of high strength and durability & 100\% & 9\% \\ \cline{2-5}  & C19. Education & I42. Education of service providers & 100\% & 10\% \\ \cline{2-5}  & C20. Skills in sustainability & I43. Integration of a qualified sustainability expert & 100\% & 5\% \\ \hline \multirow{8}{*}{A5. Site} & C21. Local community & I44. Local community development & 100\% & 17\% \\ \cline{2-5}  & C22. Cultural value & I45. Heritage framework & 100\% & 17\% \\ \cline{2-5}  & & I46. Accessibility to public transport & 69\% & \\ \cline{2-5}  & C23. Conveniences & I47. Low impact mobility & 24\% & 67\% \\ \cline{2-5}  & & I48. Local amenities & 7\% & \\ \hline \hline \end{tabular}
\end{table} 
Table 4: _Cont._From comparing the weights between the proposed assessment framework and other HBSA methods, it is possible to draw some conclusions regarding the differences in the sustainability priorities and the level of the structure of each method. Analysing the different HBSA methods addressed in this study, it is possible to conclude that they share common core sustainability categories, such as energy use; water efficiency; indoor and outdoor environmental quality; resources and materials; service quality; and site strategies. The proposed framework in this study also considered those priorities. Nevertheless, the weight of each category in the overall assessment varies among the analysed methods, as presented in Figure 4. This difference is because the methods were developed for different locations; therefore, each system of weights reflects specific sustainability properties. It is important to note that one of the studied methods gives more importance to one core sustainability category than others. The energy-related indicators in LEED BD + C weigh 33% of the global sustainability score. On the other hand, BREEAM International New Construction has a more balanced weighing system between all core criteria.