## 4 Presentation of Results and Discussion
\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 C1. Environmental life cycle impacts assessment & & II. Assessment of the buildings’ life cycle impacts & 100\% & 24\% \\ \hline C2. Energy & & I2. Primary energy consumption & 40\% & \\ \cline{3-5}  & & I3. Onsite energy production & 40\% & 13\% \\ \cline{3-5}  & & I4. Energy Performance & 20\% & \\ \cline{3-5}  & & I5. Soil sealing & 26\% & \\ \cline{3-5}  & & I6. Ecological protection of the site & 41\% & 11\% \\ \cline{3-5} A1. Environmental & & I7. Rehabilitation of the surrounding & 33\% & \\ \hline C4. Materials and solid waste & & I8. Construction waste & 24\% & \\ \cline{3-5}  & & I9. Reused and recycled products and materials & 19\% & \\ \cline{3-5}  & & I10. Waste separation and storage & 47\% & \\ \cline{3-5}  & & I11. Responsible sourcing of materials & 10\% & \\ \hline C5. Water & & I12. Potable water consumption & 33\% & \\ \cline{3-5}  & & I13. Recycling and recovery of effluents & 17\% & \\ \cline{3-5}  & & I14. Treatment of contaminated effluents & 33\% & \\ \cline{3-5}  & & I15. Water efficient equipment & 17\% & \\ \hline C6. Occupant’s health and comfort & & I16. Natural ventilation & 12\% & \\ \cline{3-5}  & & I17. Toxicity of finishing materials & 10\% & \\ \cline{3-5}  & & I18. Thermal comfort & 24\% & 16\% \\ \cline{3-5}  & & I19. Acoustic comfort & 11\% & \\ \cline{3-5}  & & I20. Indoor air quality & 42\% & \\ \cline{3-5}  & & I21. Ventilation and temperature control & 50\% & 33\% \\ \cline{3-5} A2. Sociocultural and the user & & I22. Natural light adjustment & 50\% & \\ \cline{3-5}  & & C8. Landscaping & I23. Visual link with the surrounding landscape & 100\% & 3\% \\ \cline{3-5}  & & I24. Layout and orientation & 67\% & \\ \cline{3-5}  & & I25. Passive systems & 33\% & \\ \cline{3-5}  & & I26. Accessibilities & 100\% & 33\% \\ \cline{3-5}  & & I27. Availability and accessibility of social areas & 36\% & \\ \cline{3-5}  & & I28. Space optimisation & 33\% & \\ \cline{3-5}  & & I29. Space flexibility & 15\% & \\ \cline{3-5}  & & I30. Space adaptability & 16\% & \\ \hline C10. Mobility plan & & I26. Accessibilities & 100\% & 33\% \\ \cline{3-5}  & & I27. Availability and accessibility of social areas & 36\% & \\ \cline{3-5}  & & I28. Space optimisation & 33\% & \\ \cline{3-5}  & and adaptability & & I29. Space flexibility & 15\% & \\ \cline{3-5}  & & I30. Space adaptability & 16\% & \\ \hline C12. Life cycle costs & & I31. Initial cost & 20\% & \\ \cline{3-5} A3. Economic & & I32. Operational costs & 80\% & 33\% \\ \cline{3-5}  & & C13. Local economy & I33. Hiring local goods and services & 100\% & 10\% \\ \cline{3-5}  & & C14. Corruption & & \\ \cline{3-5}  & avoidance plan & I34. Sustainable purchase policies & 100\% & 57\% \\ \hline \hline \end{tabular}
\end{table} 
Table 4: The weighing system of the proposed list of sustainability indicators. In Category C2 (Energy), the weight of the two first Indicators (I2--Primary energy consumption; I3--Onsite energy production) was the same, whereas Indicator I4 (Minimum energy performance) had the lowest weight. In Category C3 (Soil use and biodiversity), the most important was I6 (Ecological protection of the site), closely followed by I7 (Rehabilitation of the surrounding). In Category C4 (Materials and Solid Waste), I10 (Waste separation and storage) achieved the highest weight, and the other three indicators had a balanced weight. In Category C5 (Water), I12 (Potable water consumption) and I14 (Treatment of contaminated effluents) were the most important. At Category C6 (User's health and comfort), I20 (Indoor air quality) was disclosed as a priority, and the other three indicators had a balanced weight. The two indicators had the same weight in Category C7 (Controllability by the user). In Category C9 (Passive design), I24 (Layout and Orientation) was considered more significant than I25 (Passive Systems).