The extent of land take of a parcel of land is measured by dividing the parcel into its 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, its impacts on biodiversity, water management, climate regulation, etc. are 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) x associated surfaces / Area of the parcel
This indicator measures VINCI Immobilier’s impact on the land take of 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
This indicator provides additional information about the extent of land take, by also considering the floor area built by the operation. It describes how efficiently VINCI Immobilier’s operation uses the land and is expressed as the number of square metres of land take per square metre of floor area built. A low land take requirement indicates efficient land use; a negative requirement means that the operation restores soil. This indicator is mainly used to steer progress toward the “no net land take” target.
Land take requirement = ΔLT x parcel area / floor area built
Reporting of water consumption currently covers all water purchased. Water volume withdrawn directly from natural environments is recorded for concession businesses and now included in consolidated reporting. VINCI is continuing its efforts to expand this reporting item over a broader scope and improve its reliability. Reporting on the use of phytosanitary products covers the scope of VINCI Autoroutes and VINCI Concessions.
The number of environmentally certified projects is limited to VINCI Construction, VINCI Energies 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 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.
Occupational illnesses are defined as illnesses contracted following prolonged exposure to a professional risk (noise, hazardous products, posture, etc.) and recognised as such by the regulations in force, where such regulations exist. The calculation of the number of days of absenteeism for occupational illness includes days lost due to illnesses declared as occupational and recognised as such, where such regulations exist. The Group continues to educate subsidiaries about the need to harmonise reporting practices.
Workforce-related data is collected from each operational entity using a specific package of the Vision III data reporting system, including automatic controls. Data is checked and validated by the Group entities themselves. This data is then consolidated in two steps:
Environmental data is collected, checked, consolidated and validated by the environment managers in each business line and division using their own IT tools. The data is then consolidated centrally using Vision III. When consolidation takes place, data consistency checks are carried out at Group level by the Environment Department. Comparisons are made with the previous year’s data and any material discrepancies are analysed in detail.
From 2002 to 2013, VINCI asked its Statutory Auditors to give their opinion on the quality of the procedures used to report social and environmental information. Since 2014, a Statutory Auditor has been appointed as the independent third-party body in charge of verifying the completeness and fair presentation of information published in the “Workforce-related, social and environmental information” chapter and, since 2018, of information in the non-financial performance statement. In 2022, Cobra IS was excluded from all of the auditing work performed by the independent third-party body. The nature of the work carried out and the findings are presented on pages 292 to 294.
