5.3.6 Water withdrawal indicators
- Consumed water Consumed water reflects the consumption of water not returned to the natural environment and used to produce concrete or aggregates.
- Withdrawn water Water withdrawals correspond to the volumes of water, expressed in cubic metres, used directly by Group companies for their own operations and then returned to natural environments. Group companies track the quantity of water they withdraw from three sources:
- water from drinking and industrial water distribution networks;
- drilled water, withdrawn from an aquifer;
- dewatering water, involving lowering the water table to prevent the infiltration of water, which must be pumped and evacuated from quarries.
The published data reflects physical data or, if physical data is not available, estimated data based on per-day or per-person consumption ratios for each type of work process.
5.3.7 VINCI Immobilier’s “no net land take” indicators
VINCI Immobilier’s land recycling and “no net land take by 2030” targets do not include VINCI Immobilier in Poland or Urbat. Land take has been defined in France’s Climate and Resilience Law as the lasting degradation of all or some of the ecological functions of soil, especially its biological, hydrologic and climate regulation functions or agricultural potential, due to its occupation or use (Article L.101-2-1 of the French Town Planning Code). As yet, no official metrics have been associated with this recent definition. VINCI Immobilier may update its in-house definition if an official definition or a definition used by its peers is made public. Currently, VINCI Immobilier considers that no net land take will be achieved when the change in land take for its scope is zero.
- Extent of land take The extent of land take of a parcel of land is measured by dividing the parcel into different homogeneous surfaces and applying a coefficient to each surface to estimate land take. The land take coefficients were developed in a similar way as a parcel’s biotope coefficients. They factor in the impact of each type of surface – such as green roofs, greenery on concrete structures, permeable coatings or open land. For every surface, the impact on biodiversity, water management, climate regulation, etc. is considered. VINCI Immobilier calculated a coefficient for each type of surface based on a technical analysis that also drew from the sustainable development team’s environmental expertise, available literature and feedback from the field. Extent of land take = ∑ (land take coefficients) × associated surfaces/area of the parcel
- Change in land take (ΔLT) This indicator measures VINCI Immobilier’s land take impact on a parcel and shows whether the operation improved or degraded the natural functions of its soil by comparing the situation before and after the property development. ΔLT = LT after − LT before
5.3.8 Environmentally certified projects
The number of environmentally certified projects is limited to VINCI Construction, VINCI Energies, Cobra IS and VINCI Immobilier. Certified revenue is based on the number of projects in which the entity participated during the reporting period and which obtained, or are in the process of obtaining, environmental certification (such as NF HQE™, BREEAM®, LEED® or E+C−), as well as the associated revenue for that year (1 January to 31 December). A project with several certifications will be counted several times, but its revenue is divided by the number of certifications to prevent double counting.
