## 3 Case study: Social Housing Stock Managed by EVha
### Characterisation of the Public Residential Building Stock in COMUNITAT Valenciana Region  
The main features for the analysis of the pursued replicability of HAPPEN research on the social buildings stock are the number of blocks in every promotion group, their height in terms of number of floors, their age, building typology, and specifically the main orientation North-South or East-West. Only as a guidance, the number of flats per block is also shown in Table 3.  
Figure 4: Social dwellings’ location. Figure 3: Location of Valencian Community in Spain. \begin{table}
\begin{tabular}{l c c c c c c c c c c c c c c c c c} \hline \hline  & \multicolumn{3}{c}{Blocks} & \multicolumn{3}{c}{**Dwellings**} & \multicolumn{3}{c}{**SFH1**} & \multicolumn{3}{c}{**SFH2**} & \multicolumn{3}{c}{**SFH3**} & \multicolumn{3}{c}{**MFH1**} & \multicolumn{3}{c}{**MFH2**} & \multicolumn{3}{c}{**MFH3**} \\ \hline \hline \multicolumn{13}{c}{\(\mathsf{StotA}\) *} \\  & \multicolumn{3}{c}{**Number**} \\  & **(m\({}^{\text{\text{\tiny{T}}}}\))** & **Total** & **N-S** & **E-W** & **N-S** & **E-W** & **N-S** & **E-W** & **N-S** & **N-S** & **E-W** & **N-S** & **E-W** & **N-S** & **E-W** \\ \hline ALICANTE & 609,478.83 & 1649 & 1172 & 477 & 9940 & 505 & 149 & 114 & 171 & 1 & - & 189 & 86 & 362 & 71 & 1 & - \\ WIS2 & 609,478.83 & 1649 & 1172 & 477 & 9940 & 505 & 149 & 114 & 171 & 1 & - & 189 & 86 & 362 & 71 & 1 & - \\ WIS2 & - & - & - & - & - & - & - & - & - & - & - & - & - & - & - & - & - \\ CATELLON & 232,439.00 & 321 & 205 & 116 & 3271 & - & - & 18 & 16 & - & - & 108 & 48 & 79 & 51 & - & 1 \\ WIS2 & 230,656.70 & 308 & 205 & 103 & 3245 & - & - & 18 & 3 & - & - & 108 & 48 & 79 & 51 & - & 1 \\ WES2 & 1782.30 & 13 & 0 & 13 & 26 & - & - & 13 & - & - & - & - & - & - & - & - & - \\ VALENCIA & 1436,680.63 & 2349 & 1663 & 686 & 22,360 & 571 & 9 & 7 & 22 & - & - & 685 & 436 & 397 & 205 & 9 & 8 \\ WIS2 & 1385,584.00 & 1968 & 1300 & 668 & 21,519 & 229 & 3 & 7 & 22 & - & - & 682 & 435 & 397 & 194 & 9 & 8 \\ WIS2 & 51,096.63 & 381 & 363 & 18 & 841 & 342 & 6 & - & - & - & 3 & 1 & 18 & 11 & - & - \\ VALENCIAN & & & & & & & & & & & & & & & & & & \\ COMUM- & -2,2789.586 & 4319 & 3040 & 1279 & 35,571 & 1076 & 158 & 139 & 209 & 1 & - & 982 & 570 & 838 & 327 & 10 & 9 \\ NITY & & & & & & & & & & & & & & & & & \\ WIS2 & 2,225,719.53 & 3925 & 1505 & 771 & 34,704 & 734 & 152 & 139 & 196 & 1 & - & 979 & 569 & 820 & 316 & 10 & 9 \\ WES2 & 52,878.93 & 394 & 363 & 31 & 867 & 342 & 6 & - & 13 & - & - & 3 & 1 & 18 & 11 & - & - \\ \hline \multicolumn{13}{c}{* Useful area.} \\ \hline \hline \end{tabular}
\end{table} 
Table 3: EVha’s building stock summary. The online tool [20] that uses the methodology described in Section 2 has been used to calculate the different Packages of Optimal Solutions according to the type of buildings (SFH1, SFH2, SFH3, MFH1, MFH2, MFH3) and climatic zone (W1S2, W2S2) existing in Comunitat Valenciana region (Section 3). There, the type of buildings has been classified according to the year of construction (Table 4):  
The buildings have also been classified according to their number of floors (Table 5):  
Due to history, the ownership of the dwellings has been varying along time. Currently, some of all the flats built by the administration have a private entitlement, almost the half. It happened because some policies in former times offered the possibility to amortize the dwelling by the acceptation of their previous rents as a part of the purchase. That is why the total number of dwellings considered in the analysis exceed the current number of public dwellings managed by EVha. However, the global figures considered in this article are useful in terms of both the existing construction analysis and the further constructive implementation. On the other hand, the main studied feature of the buildings is their orientation and location as well. Two main orientations have been considered: North-South and East-West, hereinafter referred to as N-S and E-W, respectively.