The activity complies with all the following criteria¹:

1. All generated construction and demolition waste is treated in accordance with National waste legislation², in particular by setting sorting systems and pre-demolition audits.
   • The preparing for re-use or recycling of the non-hazardous construction and demolition waste generated on the construction site is at least 70% (by mass in kilogrammes), excluding backfilling and naturally occurring material.
2. The use of primary raw material in the construction of the building is minimized through the use of secondary raw materials.
   • The operator of the activity ensures that the three heaviest material categories used to construct the building, measured by mass in kilogrammes, comply with the following maximum total amounts of primary raw materials used:
     • for the combined total of concrete³, natural or agglomerated stone, a maximum of 85% of the material come from primary raw material;
     • for the combined total of brick, tile, ceramic, a maximum of 85% of the material come from primary raw material;
     • for bio-based materials⁴, a maximum of 90% of the total material come from primary raw material;
     • for the combined total of glass, mineral insulation, a maximum of 85% of the total material come from primary raw material;
     • for non-biobased plastic, a maximum of 75% of the total material come from primary raw material;
     • for metals, a maximum of 65% of the total material come from primary raw material;
     • for gypsum, a maximum of 83% of the material come from primary raw material
   • The above thresholds are calculated by subtracting the secondary raw material from the total amount of each material category used in the works measured by mass in kilogrammes.
     • Where the information on the recycled content of a construction product is not available, it is to be counted as comprising 100% primary raw material.
     • In order to respect the Waste Hierarchy and thereby favour re-use over recycling, re-used construction products, including those containing non-waste materials reprocessed on site, are to be counted as comprising zero primary raw material.
3. Maintain 75% of the existing building structure (including floor and roof decking) and envelope (the exterior skin and framing, excluding window assemblies and non-structural roofing materials).
   • Portions of buildings deemed structurally unsound or hazardous should be excluded from calculations
   • This is to be calculated based on the gross external floor area retained from the original building using the applicable national or regional measurement methodology, alternatively using the definition of ‘IPMS 1’ contained in the International Property Measurement Standards
4. Use existing interior non-structural elements (e.g., interior walls, doors, floor coverings and ceiling systems) for at least 30% of the entire completed building, including additions
5. Construction designs and techniques support circularity via the incorporation of concepts for design for adaptability and deconstruction.
6. Cement that has lower clinker-to-cement ratio through the use of Supplementary Cementitious Materials (SCMs) is preferred to high carbon intensive cement.
7. The use of appropriate personal protective equipment (PPE) is ensured for all personnel involved in the construction site.