Table 2.

Survey chart.

Surveyed characteristics	Unit of measure/classification/description
City, province
Social housing or ordinary development	0/1
Urbanized or unurbanized soil	0/1
Planning fees	€
Building volume	m3
N° of storeys	(0-n)
Quality of finishing	0–5
Building shape
Plant design
Starting date of construction	dd/mm/yy
End of construction	dd/mm/yy
Number of employees	(0-n)
Annual turnover
Cost of construction	€