ESG SDDS Wiring-Guide

"This indicator measures the proportion of virgin (raw) building materials used in new construction and major renovation projects relative to the total weight of all materials applied. When reporting:
    •  Numerator – only newly extracted or manufactured materials (exclude recovered, recycled, or bio-sourced content).
    •  Denominator – total weight of all building materials used in relevant projects during the reporting year.
    •  Where possible, base calculations on actual procurement or construction data (e.g. contractor or supplier data, Environmental Product Declarations – EPDs). If precise weights are unavailable, use credible estimates from bills of quantities, material specifications, or recognised construction benchmarks.

Note 1: This metric supports circular economy objectives by tracking reliance on virgin resources.
Note 2: Apply this indicator only to new construction and major renovation projects under the manager’s operational control. Forward funding arrangements or standing assets where materials data is unavailable may be excluded. Where partial data is reported, disclose assumptions and limitations."