## 3 Methodology
### Development of the List of Indicators and Questionnaire
\begin{table}
\begin{tabular}{p{113.8 pt} p{113.8 pt} p{113.8 pt}} \hline \hline
**Areas** & **Categories** & **Indicators** \\ \hline \hline \multirow{8}{*}{C2 Energy} & C1 Environmental life cycle impacts assessment & I1 Assessment of the buildings’ life cycle impacts \\ \cline{2-3}  & & I2 Primary energy consumption \\ \cline{2-3}  & C2 Energy & I3 Onsite energy production \\ \cline{2-3}  & & I4 Energy Performance \\ \cline{2-3}  & & I5 Layout optimisation \\ \cline{2-3}  & & I6 Soil sealing \\ \cline{2-3}  & & I7 Reuse of previously built or contaminated areas \\ \cline{2-3}  & C3 Soil use and biodiversity & I8 Ecological protection of the site \\ \cline{2-3}  & & I9 Rehabilitation of the surrounding \\ \cline{2-3}  & & I10 Use of native plants \\ \cline{2-3}  & & I11 Heat Island effect \\ \cline{2-3}  & & I12 Construction waste \\ \cline{2-3}  & C4 Materials and Solid Waste & I13 Reused and recycled products and materials \\ \cline{2-3}  & & I14 Waste separation and storage \\ \cline{2-3}  & & I15 Responsible sourcing of materials \\ \hline \multirow{8}{*}{C5 Water} & I16 Potable water consumption \\ \cline{2-3}  & & I17 Recycling and reuse of effluents \\ \cline{1-1} \cline{2-3}  & & I18 Treatment of contaminated effluents \\ \cline{1-1} \cline{2-3}  & & I19 Water efficient equipment \\ \hline \hline \end{tabular}
\end{table} 
Table 2: List of sustainability areas, categories, and indicators included in the survey. \begin{table}
\begin{tabular}{c c c} \hline
**Areas** & **Categories** & **Indicators** \\ \hline \hline \multirow{8}{*}{A2 Sociocultural and functional} & & I20 Natural ventilation \\ \cline{2-3}  & & I21 Toxicity of finishing materials \\ \cline{2-3}  & C6 Occupants’ health and comfort & I22 Thermal comfort \\ \cline{2-3}  & & I23 Visual comfort \\ \cline{2-3}  & & I24 Acoustic comfort \\ \cline{2-3}  & & I25 Indoor air quality \\ \cline{2-3}  & C7 Controllability by the user & I26 Ventilation and temperature control \\ \cline{2-3}  & I27 Natural light adjustment \\ \cline{2-3}  & C8 Landscaping & I28 Visual link with the surrounding landscape \\ \cline{2-3}  & C9 Passive design & I29 Layout and orientation \\ \cline{2-3}  & I30 Passive systems \\ \cline{2-3}  & C10 Mobility plan & I31 Accessibilities \\ \hline \multirow{8}{*}{C11 Space flexibility and adaptability} & I32 Availability and accessibility of social areas \\ \cline{2-3}  & & I33 Space optimisation \\ \cline{2-3}  & I34 Space flexibility \\ \cline{2-3}  & I35 Space adaptability \\ \hline \multirow{8}{*}{A3 Economy} & C12 Life cycle costs & I36 Initial cost \\ \cline{2-3}  & I37 Operational costs \\ \cline{2-3}  & C13 Local economy & I38 Hiring local goods and services \\ \cline{2-3}  & C14 Corruption avoidance plan & I39 Sustainable purchase policies \\ \hline \multirow{8}{*}{A4 Technical} & & I40 Commissioning \\ \cline{2-3}  & C15 Environmental management systems & I41 Environmental management plan \\ \cline{2-3}  & I42 Infection control \\ \cline{2-3}  & I43 Reducing noise pollution \\ \cline{2-3}  & C16 Technical systems & I44 Efficiency of lighting and air conditioning systems \\ \cline{2-3}  & C17 Security & I45 Occupants safety \\ \cline{2-3}  & I46 Responsible construction practices \\ \hline \multirow{2}{*}{C18 Durability} & I47 Materials of high strength and durability \\ \cline{2-3}  & I48 Proper selection of furniture \\ \hline \multirow{2}{*}{C19 Awareness and education for sustainability} & I49 Education of occupants \\ \cline{2-3}  & I50 Education of service providers \\ \cline{2-3}  & I51 Satisfaction surveys \\ \cline{2-3}  & C20 Skills in sustainability & I52 Integration in the team of a qualified \\ \cline{2-3}  & C21 Local community & I53 Local community development \\ \cline{2-3}  & C22 Cultural value & I54 Heritage framework \\ \hline \multirow{8}{*}{C23 Conveniences} & I55 Accessibility to public transport \\ \cline{2-3}  & C23 Conveniences & I56 Low-impact mobility \\ \cline{2-3}  & I57 Local amenities \\ \hline \end{tabular}
\end{table}